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These are the user uploaded subtitles that are being translated: 1 00:00:01,933 --> 00:00:03,467 Narrator: they're watching you. 2 00:00:03,467 --> 00:00:06,667 More than 4,000 satellites Circle the earth. 3 00:00:06,667 --> 00:00:09,867 Every day, they uncover New, mysterious phenomena. 4 00:00:09,867 --> 00:00:12,933 Some defy explanation. 5 00:00:12,933 --> 00:00:15,467 You certainly don't expect To see that every day. 6 00:00:15,467 --> 00:00:17,500 Whatever it is, It can't be good. 7 00:00:17,500 --> 00:00:19,767 Narrator: a german forest hides A giant swastika 8 00:00:19,767 --> 00:00:21,200 Of living trees. 9 00:00:21,200 --> 00:00:22,767 The neo-nazi movement 10 00:00:22,767 --> 00:00:25,600 Is still very powerful In germany. 11 00:00:25,600 --> 00:00:27,300 Narrator: a mystic symbol In the peruvian desert 12 00:00:27,300 --> 00:00:29,833 Poses a riddle. 13 00:00:29,833 --> 00:00:31,433 Whoever put this together 14 00:00:31,433 --> 00:00:34,300 Was tryin' to send A message to the future. 15 00:00:34,300 --> 00:00:35,933 Narrator: And a human-shaped figure soars 16 00:00:35,933 --> 00:00:38,400 Above the california hills. 17 00:00:38,400 --> 00:00:41,633 Whatever it is, it's very hot. 18 00:00:41,633 --> 00:00:44,500 Narrator: baffling phenomena. Mysteries from space. 19 00:00:44,500 --> 00:00:46,633 What on earth are they? 20 00:00:59,767 --> 00:01:02,833 -- captions by vitac -- Www.Vitac.Com 21 00:01:02,833 --> 00:01:06,167 Captions paid for by Discovery communications 22 00:01:06,167 --> 00:01:09,633 Narrator: Eastern germany, 1992. 23 00:01:09,633 --> 00:01:12,067 Three years after the fall Of the berlin wall, 24 00:01:12,067 --> 00:01:17,500 The country is still rebuilding After years of communist rule. 25 00:01:17,500 --> 00:01:19,800 An intern at a german Landscaping company 26 00:01:19,800 --> 00:01:22,333 Is searching through Government aerial photos, 27 00:01:22,333 --> 00:01:24,867 When a picture taken over A remote patch of forest 28 00:01:24,867 --> 00:01:27,267 Stops him in his tracks. 29 00:01:31,233 --> 00:01:34,433 It's a giant swastika, 200 feet across. 30 00:01:34,433 --> 00:01:37,500 What the heck Is a swastika doing 31 00:01:37,500 --> 00:01:39,100 In the middle of a forest? 32 00:01:39,100 --> 00:01:41,567 Narrator: the image comes From kutzerower heath, 33 00:01:41,567 --> 00:01:44,767 A pine forest near Zernikow, northeast germany. 34 00:01:47,333 --> 00:01:51,267 The discovery of the banned Symbol ignites a media frenzy. 35 00:01:53,367 --> 00:01:55,133 A news agency charters a plane 36 00:01:55,133 --> 00:01:59,900 To fly over the forest To confirm the sighting. 37 00:01:59,900 --> 00:02:01,967 Reading about the swastika, 38 00:02:01,967 --> 00:02:03,900 French president Francois mitterrand 39 00:02:03,900 --> 00:02:08,967 Pressures the german authorities To remove the offending symbol. 40 00:02:08,967 --> 00:02:10,500 At the time of the discovery, 41 00:02:10,500 --> 00:02:12,633 Forester ulrich koch Was employed 42 00:02:12,633 --> 00:02:15,700 To maintain This area of woodland. 43 00:02:15,700 --> 00:02:18,767 He didn't even know The symbol was there. 44 00:02:18,767 --> 00:02:21,800 [ speaking german ] 45 00:02:45,433 --> 00:02:47,067 Narrator: Initial attempts to identify 46 00:02:47,067 --> 00:02:50,367 Who made the swastika Come to nothing. 47 00:02:50,367 --> 00:02:51,867 The mystery of its creation 48 00:02:51,867 --> 00:02:56,133 Remains unsolved For more than 20 years. 49 00:02:56,133 --> 00:02:58,767 Investigators consider whether The bright yellow foliage 50 00:02:58,767 --> 00:03:00,633 That forms the swastika shape 51 00:03:00,633 --> 00:03:05,267 Might be a freak result Of a natural phenomenon. 52 00:03:05,267 --> 00:03:07,600 We do know that lightning Can create 53 00:03:07,600 --> 00:03:10,300 A burn or a-a kill zone 54 00:03:10,300 --> 00:03:13,467 That extends out From a central location. 55 00:03:13,467 --> 00:03:15,933 But occasionally we have A strong enough strike 56 00:03:15,933 --> 00:03:17,467 That will not only kill the tree 57 00:03:17,467 --> 00:03:22,667 But disfigure surrounding trees Into a distinguishable pattern. 58 00:03:22,667 --> 00:03:24,133 Narrator: From the aerial imagery alone, 59 00:03:24,133 --> 00:03:26,233 A lightning strike, While unlikely, 60 00:03:26,233 --> 00:03:29,267 Can't be ruled out. 61 00:03:29,267 --> 00:03:31,400 But a ground-level Investigation reveals 62 00:03:31,400 --> 00:03:32,800 That the trees aren't yellow 63 00:03:32,800 --> 00:03:35,633 Because they were damaged. 64 00:03:35,633 --> 00:03:38,100 They're yellow because They're a different species 65 00:03:38,100 --> 00:03:41,767 To the pine trees That surround them. 66 00:03:41,767 --> 00:03:43,600 The only known yellow trees 67 00:03:43,600 --> 00:03:46,967 In this particular place In the world are larch trees. 68 00:03:46,967 --> 00:03:49,067 They're a pretty Unique coniferous tree 69 00:03:49,067 --> 00:03:51,933 In that they lose their leaves And turn yellow in the autumn. 70 00:03:51,933 --> 00:03:54,867 So for 9 months of the year It blends in completely 71 00:03:54,867 --> 00:03:56,267 With all the other green trees, 72 00:03:56,267 --> 00:04:00,467 But then in the autumn, A bright yellow swastika. 73 00:04:00,467 --> 00:04:02,533 That is strange. 74 00:04:02,533 --> 00:04:04,533 Pavelec: it's weird to have A giant swastika 75 00:04:04,533 --> 00:04:06,367 That can only be seen In the fall. 76 00:04:06,367 --> 00:04:10,533 It's even more strange to have It in the middle of a forest 77 00:04:10,533 --> 00:04:13,067 Where it can only be seen From the air. 78 00:04:13,067 --> 00:04:16,067 That's very bizarre. 79 00:04:16,067 --> 00:04:18,633 Narrator: this new discovery Proves the larch trees 80 00:04:18,633 --> 00:04:21,067 Must have been planted Deliberately. 81 00:04:21,067 --> 00:04:23,533 There are dozens And dozens of trees. 82 00:04:23,533 --> 00:04:25,367 Someone had to go To a lot of trouble 83 00:04:25,367 --> 00:04:27,367 To make this happen. 84 00:04:27,367 --> 00:04:30,400 [ speaking german ] 85 00:04:40,967 --> 00:04:44,067 Narrator: for local residents And people all across europe, 86 00:04:44,067 --> 00:04:47,133 The most alarming possibility Is that the swastika was created 87 00:04:47,133 --> 00:04:49,167 By resurgent neo-fascists, 88 00:04:49,167 --> 00:04:52,200 Stamping their mark On the territory. 89 00:04:52,200 --> 00:04:53,933 After the end of The second world war, 90 00:04:53,933 --> 00:04:56,300 Over 9,000 nazis escaped. 91 00:04:56,300 --> 00:04:57,767 Some of them fled To foreign countries. 92 00:04:57,767 --> 00:05:00,067 Some stayed in germany. 93 00:05:00,067 --> 00:05:03,833 The neo-nazi movement is still Very powerful in germany 94 00:05:03,833 --> 00:05:06,767 A-a-and is a real threat. 95 00:05:06,767 --> 00:05:08,400 Narrator: This region of brandenburg 96 00:05:08,400 --> 00:05:10,967 Was a heartland Of the original nazi movement. 97 00:05:10,967 --> 00:05:14,267 And even today, it's known For racist violence. 98 00:05:14,267 --> 00:05:16,300 Several outlawed neo-nazi groups 99 00:05:16,300 --> 00:05:20,067 Are thought To have cells operating here. 100 00:05:20,067 --> 00:05:23,067 They attack shops and businesses Run by immigrants, 101 00:05:23,067 --> 00:05:24,767 Often burning them To the ground. 102 00:05:24,767 --> 00:05:27,667 [ cheering ] 103 00:05:27,667 --> 00:05:29,800 It could be the indication 104 00:05:29,800 --> 00:05:33,067 Of a stronghold Or a meeting place. 105 00:05:33,067 --> 00:05:34,567 Narrator: For the swastika to be connected 106 00:05:34,567 --> 00:05:36,300 To modern neo-nazis, 107 00:05:36,300 --> 00:05:37,800 The trees would have To be planted 108 00:05:37,800 --> 00:05:40,867 Within the last 30 to 40 years. 109 00:05:40,867 --> 00:05:43,733 The only way to get To the exact age of a tree, 110 00:05:43,733 --> 00:05:45,367 Especially in these Northern regions, 111 00:05:45,367 --> 00:05:47,300 Is to count the rings. 112 00:05:47,300 --> 00:05:49,167 And when they cut down Some of these trees, 113 00:05:49,167 --> 00:05:52,267 They found that they were About 80 years old. 114 00:05:52,267 --> 00:05:55,333 This is an old-growth forest. These are old-growth trees. 115 00:05:55,333 --> 00:05:57,733 They were planted in the 1930s, 116 00:05:57,733 --> 00:06:02,500 Which is right at the beginning Of the rise of nazism. 117 00:06:02,500 --> 00:06:04,367 Narrator: The fact the trees change color 118 00:06:04,367 --> 00:06:06,300 For such a short period of time 119 00:06:06,300 --> 00:06:09,233 And you have to see them From the air helps explain 120 00:06:09,233 --> 00:06:12,800 How the swastika went Unnoticed for so long. 121 00:06:12,800 --> 00:06:16,633 But who planted the trees, And why? 122 00:06:16,633 --> 00:06:20,767 It was common in nazi germany To show loyalty by displaying, 123 00:06:20,767 --> 00:06:23,900 In some form, the swastika. 124 00:06:23,900 --> 00:06:26,300 Narrator: The seasonal appearance Of the living tree swastika 125 00:06:26,300 --> 00:06:28,700 Inspires speculation. 126 00:06:28,700 --> 00:06:32,900 It could be linked to some kind Of huge nazi celebration. 127 00:06:32,900 --> 00:06:35,300 The biggest event In the nazi calendar 128 00:06:35,300 --> 00:06:38,067 Was actually hitler's birthday. It was huge. 129 00:06:38,067 --> 00:06:40,433 There were events All across the country. 130 00:06:43,300 --> 00:06:45,733 Hitler's subordinates would try To impress him 131 00:06:45,733 --> 00:06:47,500 With things like Parades and rallies 132 00:06:47,500 --> 00:06:50,467 And all kinds of things To honor the fuhrer. 133 00:06:50,467 --> 00:06:53,967 So could this big, Huge tree swastika 134 00:06:53,967 --> 00:06:55,333 In the middle of the forest 135 00:06:55,333 --> 00:06:57,867 Be connected To hitler's birthday? 136 00:07:00,133 --> 00:07:02,700 Narrator: there's one big Stumbling block to this theory. 137 00:07:02,700 --> 00:07:04,300 The dates don't work. 138 00:07:04,300 --> 00:07:07,067 The trees don't change Color till the autumn, 139 00:07:07,067 --> 00:07:10,300 And hitler's birthday Was in april. 140 00:07:10,300 --> 00:07:12,800 Narrator: whatever purpose The giant swastika served, 141 00:07:12,800 --> 00:07:16,900 It was not to mark The fuhrer's birthday. 142 00:07:16,900 --> 00:07:19,133 Eight years after It was first spotted 143 00:07:19,133 --> 00:07:21,433 And following Intense media pressure, 144 00:07:21,433 --> 00:07:22,767 In december 2000, 145 00:07:22,767 --> 00:07:25,767 Local officials finally order Forestry workers 146 00:07:25,767 --> 00:07:27,867 To cut down the offending trees. 147 00:07:27,867 --> 00:07:30,900 [ speaking german ] 148 00:07:47,733 --> 00:07:49,500 Narrator: The identity of the swastika's 149 00:07:49,500 --> 00:07:53,467 Mysterious creator Is lost to history. 150 00:07:53,467 --> 00:07:56,500 [ speaking german ] 151 00:08:14,700 --> 00:08:16,933 Narrator: an explorer Flying over peru 152 00:08:16,933 --> 00:08:20,500 Spots a huge and elaborate Symbol on the ground. 153 00:08:20,500 --> 00:08:23,567 Kind of like a crop circle, But there's no crops. 154 00:08:23,567 --> 00:08:24,833 Narrator: The strange shape is discovered 155 00:08:24,833 --> 00:08:27,500 Close to the famous nazca lines. 156 00:08:27,500 --> 00:08:32,133 Seems to me to have a kind Of a mystical shape to it. 157 00:08:32,133 --> 00:08:34,133 Whoever put this together 158 00:08:34,133 --> 00:08:36,267 Was tryin' to send a message To the future. 159 00:08:46,900 --> 00:08:49,267 Narrator: october 1983. 160 00:08:49,267 --> 00:08:51,500 Explorer johan reinhard Is flying over 161 00:08:51,500 --> 00:08:53,967 The dry deserts of peru. 162 00:08:53,967 --> 00:08:58,600 He spots a large complex pattern On the ground below him. 163 00:08:58,600 --> 00:09:01,067 It's a giant and incredibly Elaborate pattern -- 164 00:09:01,067 --> 00:09:03,967 A near-perfect circle, Lots of right angles. 165 00:09:03,967 --> 00:09:07,667 So what is it? 166 00:09:07,667 --> 00:09:10,800 Narrator: the shape was spotted Over the palpa province of peru, 167 00:09:10,800 --> 00:09:13,767 200 miles From the capital, lima. 168 00:09:13,767 --> 00:09:17,067 The site remains A mystery for 30 years. 169 00:09:17,067 --> 00:09:19,267 But then, in 2016, 170 00:09:19,267 --> 00:09:22,067 New high-resolution Drone footage with g.P.S. 171 00:09:22,067 --> 00:09:24,333 Tracking reveals The mysterious symbol 172 00:09:24,333 --> 00:09:26,267 In much greater detail. 173 00:09:28,233 --> 00:09:32,400 The shape is more Complex than first thought. 174 00:09:32,400 --> 00:09:35,067 Local archaeologist Johny isla travels 175 00:09:35,067 --> 00:09:37,433 To the site to investigate. 176 00:09:37,433 --> 00:09:40,467 [ speaking spanish ] 177 00:09:59,067 --> 00:10:02,233 The people who constructed this Were expecting stars, 178 00:10:02,233 --> 00:10:05,433 Or the gods, or whoever, Looking down, 179 00:10:05,433 --> 00:10:07,900 Could see that drawing. 180 00:10:07,900 --> 00:10:10,033 Narrator: this strange pattern Is located close 181 00:10:10,033 --> 00:10:11,333 To one of the most famous 182 00:10:11,333 --> 00:10:15,100 And mysterious archaeological Sites in the world. 183 00:10:15,100 --> 00:10:17,400 This is really close To the nazca lines, 184 00:10:17,400 --> 00:10:20,900 Massive carvings in the ground That are legendary, famous. 185 00:10:20,900 --> 00:10:24,467 You have to wonder if There's some sort of connection. 186 00:10:24,467 --> 00:10:28,600 The nazca lines comprise A variety of forms, 187 00:10:28,600 --> 00:10:30,633 Uh, of straight lines, Of triangles 188 00:10:30,633 --> 00:10:33,900 And trapezoids, uh, Marked on the desert floor. 189 00:10:33,900 --> 00:10:36,467 Though, they were constructed Over a long period of time. 190 00:10:36,467 --> 00:10:39,400 Narrator: the nazca lines Were made 1,500 191 00:10:39,400 --> 00:10:43,733 To 2,500 thousand years ago For unknown purposes. 192 00:10:43,733 --> 00:10:46,300 At several of the sites, Archaeologists have even 193 00:10:46,300 --> 00:10:49,800 Unearthed strange-shaped Humanoid skulls. 194 00:10:49,800 --> 00:10:51,867 The discoveries Have fueled speculation 195 00:10:51,867 --> 00:10:55,500 That the lines' creators Were not human. 196 00:10:55,500 --> 00:10:57,867 One of the concerns Over the many years 197 00:10:57,867 --> 00:10:59,400 Of study of the nazca Lines is that, 198 00:10:59,400 --> 00:11:01,133 "Well, they couldn't See them from the ground. 199 00:11:01,133 --> 00:11:04,833 So they must have been Made by space aliens." 200 00:11:04,833 --> 00:11:07,567 Narrator: archaeologists now Believe the bizarre skulls 201 00:11:07,567 --> 00:11:09,067 Belonged to nazca priests, 202 00:11:09,067 --> 00:11:11,400 Who most likely Reshaped their heads 203 00:11:11,400 --> 00:11:13,300 Using a painful binding process 204 00:11:13,300 --> 00:11:16,867 To give themselves An inhuman appearance. 205 00:11:16,867 --> 00:11:18,667 These priest rulers Might have used 206 00:11:18,667 --> 00:11:21,367 The nazca lines and rituals To commune with spirit beings 207 00:11:21,367 --> 00:11:24,300 In the skies. 208 00:11:24,300 --> 00:11:26,333 Could the elaborate symbol In the image 209 00:11:26,333 --> 00:11:30,900 Also be some kind Of a mystic pattern? 210 00:11:30,900 --> 00:11:32,133 There's a strong resemblance 211 00:11:32,133 --> 00:11:34,500 To an ancient hindu Religious symbol, 212 00:11:34,500 --> 00:11:37,900 Something called a mandala. 213 00:11:37,900 --> 00:11:39,933 Narrator: the mandala Represents a cosmic, 214 00:11:39,933 --> 00:11:41,300 Spiritual journey, 215 00:11:41,300 --> 00:11:43,133 Connecting people To their environment 216 00:11:43,133 --> 00:11:46,067 And the universe. 217 00:11:46,067 --> 00:11:49,100 [ speaking spanish ] 218 00:11:58,067 --> 00:11:59,700 Narrator: The mandala shape itself 219 00:11:59,700 --> 00:12:03,333 Can play an active part In ritual worship. 220 00:12:03,333 --> 00:12:06,067 Mandalas can be made by -- By footsteps beating 221 00:12:06,067 --> 00:12:07,467 A trail into the ground 222 00:12:07,467 --> 00:12:10,633 By devoted religious followers. 223 00:12:10,633 --> 00:12:11,967 So walking through them, 224 00:12:11,967 --> 00:12:13,933 Dancing through them, In fact in -- 225 00:12:13,933 --> 00:12:18,133 Incorporating these figures Of celestial entities 226 00:12:18,133 --> 00:12:21,800 Into the bodies Of the celebrates themselves. 227 00:12:21,800 --> 00:12:23,267 One of the things that struck me 228 00:12:23,267 --> 00:12:25,167 Was the cross shape In the middle. 229 00:12:25,167 --> 00:12:29,467 That immediately resonates With the medicine wheel, 230 00:12:29,467 --> 00:12:32,667 Which you will find Throughout the americas. 231 00:12:32,667 --> 00:12:35,133 This mandala on the ground, 232 00:12:35,133 --> 00:12:37,267 It is like a sacred fire 233 00:12:37,267 --> 00:12:39,367 That connects heaven and earth. 234 00:12:39,367 --> 00:12:41,567 Narrator: but the mandala Is an unusual symbol 235 00:12:41,567 --> 00:12:44,067 To find in this part Of the world. 236 00:12:44,067 --> 00:12:46,667 It's surprising To see it in peru, 237 00:12:46,667 --> 00:12:48,100 Considering that the mandala 238 00:12:48,100 --> 00:12:52,700 Is usually associated With india and the east. 239 00:12:52,700 --> 00:12:55,500 Narrator: at ground level, Isla searches for any evidence 240 00:12:55,500 --> 00:12:57,167 To back up the theory that this 241 00:12:57,167 --> 00:12:59,867 Is an ancient site To harness mystic power. 242 00:12:59,867 --> 00:13:01,400 But he comes up short. 243 00:13:01,400 --> 00:13:04,433 [ speaking spanish ] 244 00:13:12,833 --> 00:13:14,567 Narrator: close comparison Of the symbol 245 00:13:14,567 --> 00:13:16,367 With known nazca sites reveals 246 00:13:16,367 --> 00:13:18,300 Some fundamental differences. 247 00:13:20,433 --> 00:13:24,533 This particular geoglyph, uh, If it was ancient, 248 00:13:24,533 --> 00:13:26,500 It would be A departure from -- 249 00:13:26,500 --> 00:13:28,967 From the way in which Ancient geoglyphs are made. 250 00:13:28,967 --> 00:13:31,967 This one is made by piling Stones, uh, along the lines. 251 00:13:31,967 --> 00:13:34,100 This is something that The nazca people did not do. 252 00:13:35,533 --> 00:13:38,567 [ speaking spanish ] 253 00:13:49,400 --> 00:13:51,333 Narrator: isla now doubts That the symbol 254 00:13:51,333 --> 00:13:52,933 Was built by the nazca at all. 255 00:13:52,933 --> 00:13:55,967 [ speaking spanish ] 256 00:14:24,667 --> 00:14:27,600 Narrator: if these wooden stakes Were used thousands of years ago 257 00:14:27,600 --> 00:14:29,100 To create the huge symbol, 258 00:14:29,100 --> 00:14:31,667 It's unlikely they would Still be here today. 259 00:14:31,800 --> 00:14:34,833 [ speaking spanish ] 260 00:14:38,467 --> 00:14:42,400 I would not be surprised If it's not that old. 261 00:14:42,400 --> 00:14:44,667 Narrator: all attempts to Identify the creators 262 00:14:44,667 --> 00:14:47,800 Have so far proved unsuccessful. 263 00:14:47,800 --> 00:14:51,067 But its proximity to the famous Nazca lines offers 264 00:14:51,067 --> 00:14:54,467 A tantalizing clue To their motivations. 265 00:14:54,467 --> 00:14:57,633 Nazca has been a place 266 00:14:57,633 --> 00:15:00,233 Where fantasies Have been projected. 267 00:15:00,233 --> 00:15:02,267 My own presumption would be 268 00:15:02,267 --> 00:15:04,667 That somebody Put a mandala there 269 00:15:04,667 --> 00:15:06,967 Because they wanted To sort of increase 270 00:15:06,967 --> 00:15:11,333 This air of mystery connected With the nazca lines. 271 00:15:11,333 --> 00:15:13,600 With a shape of that size, 272 00:15:13,600 --> 00:15:15,333 It might well be that 273 00:15:15,333 --> 00:15:18,400 All they were interested In was the aerial photographer. 274 00:15:18,400 --> 00:15:22,067 My guess is that someone Just wanted to have fun. 275 00:15:29,800 --> 00:15:31,133 Narrator: A weather satellite orbiting 276 00:15:31,133 --> 00:15:33,300 Over northern china Captures a sudden 277 00:15:33,300 --> 00:15:37,133 And unexpected plume of heat On its infrared camera. 278 00:15:37,133 --> 00:15:38,933 This image has all the hallmarks 279 00:15:38,933 --> 00:15:41,333 Of a very sudden And violent explosion. 280 00:15:41,333 --> 00:15:44,600 Whatever it is, is actually Getting bigger over time. 281 00:15:44,600 --> 00:15:46,233 Narrator: the chinese government Instigates 282 00:15:46,233 --> 00:15:48,933 A total media lockdown. 283 00:15:48,933 --> 00:15:51,567 Chinese and foreign journalists Weren't allowed into the area. 284 00:15:51,567 --> 00:15:54,067 Posts, tweets that Were made regarding it 285 00:15:54,067 --> 00:15:55,833 Were just scrapped By the censors. 286 00:16:04,933 --> 00:16:07,867 Narrator: august 12, 2015. 287 00:16:07,867 --> 00:16:09,933 Japan's himowari-8 Weather satellite 288 00:16:09,933 --> 00:16:12,733 Is orbiting over northern china. 289 00:16:12,733 --> 00:16:15,433 It captures a sudden And unexpected heat signal 290 00:16:15,433 --> 00:16:18,567 On its infrared camera. 291 00:16:18,567 --> 00:16:21,300 With the chinese, you never know What's actually going on. 292 00:16:21,300 --> 00:16:24,200 Whatever it is, is actually Getting bigger over time. 293 00:16:24,200 --> 00:16:27,500 We're very unsure As what to -- had happened. 294 00:16:27,500 --> 00:16:29,467 Narrator: the flash of heat Was caught somewhere 295 00:16:29,467 --> 00:16:33,100 Within the port city of tianjin In northeastern china. 296 00:16:35,433 --> 00:16:37,967 The chinese government Makes no official comment 297 00:16:37,967 --> 00:16:40,667 To explain The mysterious heat spike. 298 00:16:40,667 --> 00:16:43,067 Western intelligence agencies Are left with just 299 00:16:43,067 --> 00:16:47,067 The satellite imagery To search for clues. 300 00:16:47,067 --> 00:16:49,567 Hot spots seen On satellite infrared cameras 301 00:16:49,567 --> 00:16:52,967 Can be naturally Occurring events caused 302 00:16:52,967 --> 00:16:55,300 By violent volcanic eruptions. 303 00:16:55,300 --> 00:16:57,867 Volcanos give out heat. They give out hot rock. 304 00:16:57,867 --> 00:17:00,900 That would be picked up Best in an infrared picture, 305 00:17:00,900 --> 00:17:03,233 Satellite image where the heat Would be showing up as, 306 00:17:03,233 --> 00:17:06,133 Like, a white spot Or dot in the image. 307 00:17:06,133 --> 00:17:09,767 Even a small volcano Erupting can be seen from space. 308 00:17:11,800 --> 00:17:13,333 Narrator: tianjin is The third-largest 309 00:17:13,333 --> 00:17:17,300 Urban center in china After beijing and shanghai. 310 00:17:17,300 --> 00:17:18,967 A volcano erupting anywhere 311 00:17:18,967 --> 00:17:21,567 Near the city Would be devastating. 312 00:17:25,400 --> 00:17:28,433 Analysis of the satellite Imagery over time reveals 313 00:17:28,433 --> 00:17:31,100 That the heat spike Has a short duration. 314 00:17:31,100 --> 00:17:33,733 The red color in the image Also suggests 315 00:17:33,733 --> 00:17:36,633 That it's not hot enough To be molten lava. 316 00:17:38,733 --> 00:17:41,833 I don't think this is a volcano Because in the infrared image, 317 00:17:41,833 --> 00:17:43,800 We don't see the white dots, 318 00:17:43,800 --> 00:17:46,267 The white pixels That you always see 319 00:17:46,267 --> 00:17:50,333 When you look at volcanos From other parts of the world. 320 00:17:50,333 --> 00:17:52,300 Narrator: The little evidence available 321 00:17:52,300 --> 00:17:55,667 Points to a man-made Catastrophe. 322 00:17:55,667 --> 00:17:57,267 This image has all the hallmarks 323 00:17:57,267 --> 00:17:59,867 Of a very sudden And violent explosion. 324 00:18:02,533 --> 00:18:05,667 Narrator: rumors of a horrific Incident start to spread. 325 00:18:05,667 --> 00:18:08,467 But the chinese authorities Initiate a total media 326 00:18:08,467 --> 00:18:12,267 Lockdown in the area. 327 00:18:12,267 --> 00:18:14,933 With the chinese, you never Know what they are up to. 328 00:18:14,933 --> 00:18:17,733 They really don't want us To know what actually blew up. 329 00:18:17,733 --> 00:18:19,600 It's very hard to understand What's going on 330 00:18:19,600 --> 00:18:22,533 Because they're not Interested in transparency. 331 00:18:22,533 --> 00:18:25,500 Chinese and foreign journalists Weren't allowed into the area. 332 00:18:25,500 --> 00:18:28,100 No discussion of the blast On the internet 333 00:18:28,100 --> 00:18:31,300 Was allowed by the chinese. 334 00:18:31,300 --> 00:18:35,500 Any, uh, posts or tweets That were made regarding it 335 00:18:35,500 --> 00:18:38,067 Were just scrubbed By the sensors. 336 00:18:38,067 --> 00:18:39,567 Narrator: But the evidence provided 337 00:18:39,567 --> 00:18:42,500 By the satellite image Is indisputable. 338 00:18:42,500 --> 00:18:46,400 Uh, the signature is a very, Very significant explosion. 339 00:18:46,400 --> 00:18:48,733 [ explosion ] 340 00:18:48,733 --> 00:18:51,567 Narrator: the first available Video of the disaster comes 341 00:18:51,567 --> 00:18:56,067 From cellphone footage shot On the ground in tianjin. 342 00:18:56,067 --> 00:18:58,200 It shows a vast Chemical explosion 343 00:18:58,200 --> 00:19:01,400 Ripping through the industrial Heart of the city. 344 00:19:01,400 --> 00:19:03,633 woman: a fireball over northeast china. 345 00:19:03,633 --> 00:19:09,500 cargo explodes at a port, leveling part of the city. 346 00:19:09,500 --> 00:19:11,067 There were so many warehouses 347 00:19:11,067 --> 00:19:13,800 And factories storing chemicals And hazardous materials. 348 00:19:13,800 --> 00:19:15,333 When one blew up, 349 00:19:15,333 --> 00:19:17,333 The blast perpetuated itself 350 00:19:17,333 --> 00:19:19,400 And moved from one warehouse 351 00:19:19,400 --> 00:19:21,667 And factory To another and became 352 00:19:21,667 --> 00:19:23,600 A blast of Such enormous magnitude 353 00:19:23,600 --> 00:19:25,233 That it could be seen From space. 354 00:19:25,233 --> 00:19:29,133 [ explosion ] 355 00:19:29,133 --> 00:19:31,200 Narrator: the heat spike Captured by the japanese 356 00:19:31,200 --> 00:19:33,467 Weather satellite Was caused by at least 357 00:19:33,467 --> 00:19:35,533 Two enormous chemical explosions 358 00:19:35,533 --> 00:19:39,167 In the tianjin port area. 359 00:19:39,167 --> 00:19:45,300 It was a magnitude approximately 24 tons of tnt going off. 360 00:19:45,300 --> 00:19:48,200 It was picked up By satellite coverage, uh, 361 00:19:48,200 --> 00:19:50,167 As if there had been Some nuclear test 362 00:19:50,167 --> 00:19:51,833 That had gone on somewhere. 363 00:19:51,833 --> 00:19:54,200 This was a massive explosion. 364 00:19:54,200 --> 00:19:56,167 [ explosion ] 365 00:19:56,167 --> 00:19:58,600 Narrator: satellite imagery Thrust the disaster 366 00:19:58,600 --> 00:20:01,967 Into the global spotlight. 367 00:20:01,967 --> 00:20:03,800 The explosion was catastrophic. 368 00:20:03,800 --> 00:20:05,833 What people assumed Was that the owners 369 00:20:05,833 --> 00:20:08,300 Of the chemical storage facility 370 00:20:08,300 --> 00:20:10,300 Must be connected To the communist party 371 00:20:10,300 --> 00:20:11,900 Because they're the only people With the ability 372 00:20:11,900 --> 00:20:14,733 To ban all reporting Of an event. 373 00:20:17,433 --> 00:20:20,567 Narrator: the crisis doesn't end With the explosion. 374 00:20:20,567 --> 00:20:22,767 A day later, Nasa's terra satellite 375 00:20:22,767 --> 00:20:25,833 Spots a cloud of unidentified Brown vapor 376 00:20:25,833 --> 00:20:31,400 Ghosting across the sea, 100 miles from tianjin. 377 00:20:31,400 --> 00:20:33,767 Analysts fear it could Be deadly chemicals 378 00:20:33,767 --> 00:20:36,700 Released by the explosion. 379 00:20:36,700 --> 00:20:40,000 Nobody was able to capture What the chemical makeup was. 380 00:20:40,000 --> 00:20:41,700 And the chinese government Never came clean 381 00:20:41,700 --> 00:20:44,633 As to what it was. 382 00:20:44,633 --> 00:20:46,333 Narrator: an investigation Of the explosion site 383 00:20:46,333 --> 00:20:48,733 Confirms worst fears. 384 00:20:48,733 --> 00:20:50,033 The destroyed warehouses 385 00:20:50,033 --> 00:20:52,033 Contained 700 tons 386 00:20:52,033 --> 00:20:55,200 Of the deadly poison Sodium cyanide. 387 00:20:58,200 --> 00:21:00,967 Firemen have been sent To the blast zone, 388 00:21:00,967 --> 00:21:02,233 Uh, even though it was known 389 00:21:02,233 --> 00:21:04,167 That it was an industrial park Where chemicals 390 00:21:04,167 --> 00:21:06,400 And hazardous Waste were stored, uh, 391 00:21:06,400 --> 00:21:08,567 Without being given proper Breathing equipment, 392 00:21:08,567 --> 00:21:10,500 Without being given Proper protection. 393 00:21:10,500 --> 00:21:12,367 And so the death toll Among the firemen 394 00:21:12,367 --> 00:21:15,300 That responded to the blast Was -- was extremely high. 395 00:21:20,133 --> 00:21:22,333 Narrator: the final death toll For the explosion 396 00:21:22,333 --> 00:21:26,733 At tianjin port was 173. 397 00:21:26,733 --> 00:21:30,167 104 were firefighters. 398 00:21:30,167 --> 00:21:34,367 The heat of the devastating Blast was visible from space. 399 00:21:34,367 --> 00:21:36,600 That single, brief Red flash captured 400 00:21:36,600 --> 00:21:39,767 By satellite represents One of the darkest moments 401 00:21:39,767 --> 00:21:42,067 In china's industrial history. 402 00:21:45,733 --> 00:21:48,700 A satellite orbiting over Antarctica spots strange, 403 00:21:48,700 --> 00:21:52,867 Dark stains spreading across The brilliant white ice. 404 00:21:52,867 --> 00:21:54,233 Antarctica is a giant place 405 00:21:54,233 --> 00:21:56,167 That's super cold And super remote 406 00:21:56,167 --> 00:21:57,800 With a lot we don't know about. 407 00:21:57,800 --> 00:22:00,900 Could this actually be something Caused by global warming, 408 00:22:00,900 --> 00:22:02,900 Melting the ice? 409 00:22:10,733 --> 00:22:13,400 Narrator: december 2002. 410 00:22:13,400 --> 00:22:15,133 Nasa's landsat 7 satellite 411 00:22:15,133 --> 00:22:19,700 Captures an image of The antarctic ice shelf. 412 00:22:19,700 --> 00:22:22,300 Huge, dark stains Up to 2,000 feet 413 00:22:22,300 --> 00:22:24,433 Across disfigure The pristine white 414 00:22:24,433 --> 00:22:26,967 Of the polar landscape. 415 00:22:29,333 --> 00:22:32,067 This part of antarctica Is virgin land. 416 00:22:32,067 --> 00:22:34,967 You can see some other shadows Around the ice chunks. 417 00:22:34,967 --> 00:22:37,733 And then there's This brown stain. 418 00:22:37,733 --> 00:22:39,367 Narrator: The mysterious marks show up 419 00:22:39,367 --> 00:22:41,833 Along the shores Of northeast antarctica, 420 00:22:41,833 --> 00:22:44,233 A region barely touched By humanity. 421 00:22:46,567 --> 00:22:49,933 Antarctica Is the coldest place on earth, 422 00:22:49,933 --> 00:22:52,433 The lowest temperatures, The strongest winds 423 00:22:52,433 --> 00:22:54,967 Being measured in antarctica. 424 00:22:58,067 --> 00:23:00,067 Narrator: the most common Cause of stains 425 00:23:00,067 --> 00:23:01,667 Like this, seen from space, 426 00:23:01,667 --> 00:23:04,367 Is waste from human activity. 427 00:23:04,367 --> 00:23:06,967 There are a number Of permanent bases 428 00:23:06,967 --> 00:23:10,800 And roaming research Bases in antarctica. 429 00:23:10,800 --> 00:23:13,533 Not many. I think it's 30 or 40. 430 00:23:13,533 --> 00:23:17,767 Maybe it's waste pollution From the research stations. 431 00:23:17,767 --> 00:23:20,800 Narrator: but anyone visiting Or working on antarctica 432 00:23:20,800 --> 00:23:23,700 Is prohibited from leaving waste Or garbage behind. 433 00:23:23,700 --> 00:23:26,433 There are very, very Strict environmental protocols 434 00:23:26,433 --> 00:23:28,400 About how you operate In antarctica. 435 00:23:28,400 --> 00:23:31,433 And, uh, it means That any waste, 436 00:23:31,433 --> 00:23:34,833 Human waste, um, uh, in -- 437 00:23:34,833 --> 00:23:37,467 Inorganic waste, You know, like, materials, 438 00:23:37,467 --> 00:23:39,300 All has to be taken Out of antarctica 439 00:23:39,300 --> 00:23:40,633 When you're doing Research there. 440 00:23:40,633 --> 00:23:42,600 Kays: any responsible research Station is going to, 441 00:23:42,600 --> 00:23:45,433 Uh, keep their waste together And get it shipped out. 442 00:23:45,433 --> 00:23:48,733 But not every research station Is so responsible. 443 00:23:50,500 --> 00:23:52,333 Narrator: The location of the dark stains 444 00:23:52,333 --> 00:23:54,333 Is in one of the most Remote corners 445 00:23:54,333 --> 00:23:56,500 Of this largely empty continent. 446 00:23:56,500 --> 00:23:58,400 Kays: in this case, There's no research stations 447 00:23:58,400 --> 00:23:59,800 Anywhere near here. 448 00:23:59,800 --> 00:24:02,900 So we really don't think It's a human-caused phenomenon. 449 00:24:02,900 --> 00:24:05,300 If these marks Are not man-made, 450 00:24:05,300 --> 00:24:08,367 Then they must be Something natural. 451 00:24:08,367 --> 00:24:10,567 Narrator: in other icy regions Of the world, 452 00:24:10,567 --> 00:24:15,267 Dark stains seen From the air can mean death. 453 00:24:15,267 --> 00:24:18,233 On august 26, 2016, 454 00:24:18,233 --> 00:24:22,567 More than 300 deer were killed By a lightning strike in norway. 455 00:24:22,567 --> 00:24:26,667 They formed a dark carpet Of corpses where they fell. 456 00:24:26,667 --> 00:24:28,767 Today, there are no Large mammals 457 00:24:28,767 --> 00:24:32,833 Running wild across the barren Antarctic wastes. 458 00:24:32,833 --> 00:24:34,333 But millions of years ago, 459 00:24:34,333 --> 00:24:38,300 This land was home to huge And terrifying creatures. 460 00:24:38,300 --> 00:24:39,600 Could this stained ice 461 00:24:39,600 --> 00:24:42,067 Be a dark remnant Of their passing? 462 00:24:48,200 --> 00:24:50,567 Dinosaurs in antarctica Seems like a crazy idea. 463 00:24:50,567 --> 00:24:53,733 But, in fact, antarctica used To be in a much warmer place. 464 00:24:53,733 --> 00:24:55,200 And there were dinosaurs Living there. 465 00:24:55,200 --> 00:24:59,300 So it is possible to find Dinosaur remains in antarctica. 466 00:25:01,800 --> 00:25:04,067 Narrator: during the age Of the dinosaurs, 467 00:25:04,067 --> 00:25:05,800 Antarctica was not the barren, 468 00:25:05,800 --> 00:25:08,200 Frozen wilderness we see today. 469 00:25:08,200 --> 00:25:12,533 The entire continent was Covered in dense woodland. 470 00:25:12,533 --> 00:25:15,300 The climate 50 or 60 Million years ago 471 00:25:15,300 --> 00:25:17,700 Was completely different From what it is today. 472 00:25:17,700 --> 00:25:20,433 And so antarctica Was relatively mild. 473 00:25:20,433 --> 00:25:22,067 Narrator: The extinction of the dinosaurs 474 00:25:22,067 --> 00:25:25,900 65 million years ago Would have created mass graves 475 00:25:25,900 --> 00:25:29,433 Where thousands of animals died In a single location. 476 00:25:32,433 --> 00:25:35,100 Such a site has been Discovered in antarctica, 477 00:25:35,100 --> 00:25:38,167 When melting ice and snow Revealed their existence. 478 00:25:38,167 --> 00:25:39,567 Now that it's warming up again, 479 00:25:39,567 --> 00:25:42,533 Are these bones Poking out of the ground? 480 00:25:42,533 --> 00:25:43,633 Narrator: But if dinosaur graveyards 481 00:25:43,633 --> 00:25:45,767 Do exist in antarctica, 482 00:25:45,767 --> 00:25:48,767 They would be very hard To spot by satellite. 483 00:25:48,767 --> 00:25:50,833 If there were Any dinosaur bones there, 484 00:25:50,833 --> 00:25:55,100 They would be underneath Thousands of feet of ice now. 485 00:25:57,100 --> 00:25:58,533 Narrator: Some investigators consider 486 00:25:58,533 --> 00:26:00,433 The satellite image Might be showing 487 00:26:00,433 --> 00:26:04,500 The warning signs Of an ecological disaster. 488 00:26:04,500 --> 00:26:08,067 Is it something to do with Global warming melting the ice? 489 00:26:08,067 --> 00:26:10,667 Narrator: could the dark stains Be evidence the ice sheets 490 00:26:10,667 --> 00:26:13,433 Are melting faster Than previously thought? 491 00:26:15,467 --> 00:26:17,633 Antarctica is actually A real continent. 492 00:26:17,633 --> 00:26:20,300 There's -- there -- There is soil under that ice. 493 00:26:20,300 --> 00:26:22,133 So maybe it's poking through. 494 00:26:22,133 --> 00:26:23,433 Round the edges of antarctica, 495 00:26:23,433 --> 00:26:25,367 Parts of the ice Are relatively thin, 496 00:26:25,367 --> 00:26:28,233 Perhaps just a few Tens of feet thick. 497 00:26:28,233 --> 00:26:29,433 In those areas, you -- 498 00:26:29,433 --> 00:26:31,367 You could expect bedrock 499 00:26:31,367 --> 00:26:33,400 To be exposed over time. 500 00:26:33,400 --> 00:26:34,833 Narrator: But comparing the location 501 00:26:34,833 --> 00:26:36,533 Of the brown marks With that of antarctica's 502 00:26:36,533 --> 00:26:39,067 Solid bedrock rules out the idea 503 00:26:39,067 --> 00:26:41,667 It could be rocks Poking through the ice. 504 00:26:43,800 --> 00:26:47,100 Where this location is, If that ice were not there, 505 00:26:47,100 --> 00:26:50,433 What we would see Instead would be open water. 506 00:26:50,433 --> 00:26:52,733 This is not new rock Being exposed. 507 00:26:52,733 --> 00:26:54,933 There must be Some other explanation. 508 00:26:57,333 --> 00:27:00,667 Narrator: something about these Stains doesn't add up. 509 00:27:00,667 --> 00:27:02,867 Scientists expand Their investigation 510 00:27:02,867 --> 00:27:04,867 To include The possibility the marks 511 00:27:04,867 --> 00:27:07,467 Could be linked To the local wildlife. 512 00:27:07,467 --> 00:27:11,100 The most likely explanation For what we're looking at here 513 00:27:11,100 --> 00:27:15,367 Is some sort of Ecological footprint. 514 00:27:15,367 --> 00:27:19,367 And there aren't many Species in antarctica. 515 00:27:19,367 --> 00:27:20,867 Narrator: But antarctica is home 516 00:27:20,867 --> 00:27:23,867 To one of the most Unusual birds on the planet -- 517 00:27:23,867 --> 00:27:27,133 The emperor penguin. 518 00:27:27,133 --> 00:27:28,700 Emperor penguins Are amazing birds 519 00:27:28,700 --> 00:27:31,933 Because they can live In this frigid wasteland. 520 00:27:31,933 --> 00:27:34,333 And they find their food By swimming around in the sea. 521 00:27:34,333 --> 00:27:36,700 And then they come back up And form these giant colonies 522 00:27:36,700 --> 00:27:38,467 Where they have their babies. 523 00:27:41,367 --> 00:27:45,133 They group together, you know, To keep themselves warm. 524 00:27:45,133 --> 00:27:47,067 Narrator: biologists Studying the distribution 525 00:27:47,067 --> 00:27:49,833 Of the stains discover They line up perfectly 526 00:27:49,833 --> 00:27:52,967 With several vast colonies Of emperor penguins, 527 00:27:52,967 --> 00:27:57,400 Made up of tens of thousands Of individual birds. 528 00:27:57,400 --> 00:27:59,800 There's more recent Satellite imagery 529 00:27:59,800 --> 00:28:02,500 That we have access To that's high resolution 530 00:28:02,500 --> 00:28:05,867 Where we can even count The number of penguins 531 00:28:05,867 --> 00:28:08,400 That we're looking at. 532 00:28:10,700 --> 00:28:12,433 Narrator: The higher-resolution images 533 00:28:12,433 --> 00:28:14,300 Make it clear how the penguins 534 00:28:14,300 --> 00:28:17,500 Are causing the brown stains. 535 00:28:17,500 --> 00:28:20,800 It really is amazing To me that we -- 536 00:28:20,800 --> 00:28:24,267 What we're looking at here Is penguin poo from space. 537 00:28:28,067 --> 00:28:29,967 Narrator: it turns out that Hundreds of thousands 538 00:28:29,967 --> 00:28:32,633 Of penguins Have left an indelible mark 539 00:28:32,633 --> 00:28:37,133 On the icy landscape In their poo. 540 00:28:37,133 --> 00:28:39,833 Today, scientists can Use satellite images 541 00:28:39,833 --> 00:28:42,300 Of the massive Skid marks on antarctica 542 00:28:42,300 --> 00:28:46,800 As a way of actually monitoring The resident penguin population. 543 00:28:46,800 --> 00:28:49,833 One of the things I find Particularly remarkable is that 544 00:28:49,833 --> 00:28:52,067 If a group of birds 545 00:28:52,067 --> 00:28:55,500 Can create enough guano To be seen from space, 546 00:28:55,500 --> 00:28:57,700 Then that means that It's doin' pretty well. 547 00:29:04,300 --> 00:29:06,333 Narrator: a weird white line Streaks across 548 00:29:06,333 --> 00:29:09,100 A dangerous conflict zone In the western sahara. 549 00:29:09,100 --> 00:29:11,967 This big scar on the image, On the land, 550 00:29:11,967 --> 00:29:14,667 In the air, not quite sure. 551 00:29:14,667 --> 00:29:17,133 I've never seen anything Like this before. 552 00:29:17,133 --> 00:29:20,733 Narrator: the image arouses Concerns of terrorist activity. 553 00:29:20,733 --> 00:29:23,200 This area's become A breeding ground 554 00:29:23,200 --> 00:29:26,900 And a hiding sanctuary For isis fighters 555 00:29:26,900 --> 00:29:29,067 And other radical Terrorist groups. 556 00:29:37,133 --> 00:29:39,333 Narrator: december 2013. 557 00:29:39,333 --> 00:29:43,233 The landsat 8 satellite captures An image of a strange white line 558 00:29:43,233 --> 00:29:46,333 Stretching across The north african desert. 559 00:29:46,333 --> 00:29:51,400 There's this big scar On the land, in the air. 560 00:29:51,400 --> 00:29:54,133 Not quite sure. 561 00:29:54,133 --> 00:29:55,800 Where I'm looking At things in space, 562 00:29:55,800 --> 00:29:58,100 I know that Very few things in nature, 563 00:29:58,100 --> 00:30:01,833 Uh, form these really Straight lines. 564 00:30:01,833 --> 00:30:03,400 Narrator: The photograph was taken above 565 00:30:03,400 --> 00:30:05,300 A dangerous conflict zone 566 00:30:05,300 --> 00:30:08,667 At the edge of the sahara desert In northwest africa. 567 00:30:08,667 --> 00:30:13,500 For two decades, this arid Land has been a battleground. 568 00:30:13,500 --> 00:30:14,867 Today, this whole region 569 00:30:14,867 --> 00:30:18,133 Is at the front line In the war on terror. 570 00:30:18,133 --> 00:30:23,300 Today, the western sahara Is relatively ungoverned. 571 00:30:23,300 --> 00:30:25,367 And it has become A breeding ground 572 00:30:25,367 --> 00:30:29,067 And a hiding sanctuary For isis fighters 573 00:30:29,067 --> 00:30:33,267 And other Radical terrorist groups. 574 00:30:33,267 --> 00:30:34,667 Narrator: The area's troubled history 575 00:30:34,667 --> 00:30:36,567 Provokes concerns the white line 576 00:30:36,567 --> 00:30:39,267 Could be a vapor trail From a missile launch. 577 00:30:39,267 --> 00:30:44,467 But it makes a sudden turn, Something missiles can't do. 578 00:30:44,467 --> 00:30:49,633 Investigators explore other, More natural possibilities. 579 00:30:49,633 --> 00:30:51,467 Could the strange line In the desert be 580 00:30:51,467 --> 00:30:53,700 A rare cloud phenomenon? 581 00:30:53,700 --> 00:30:56,600 Wave clouds, also known As morning glory, 582 00:30:56,600 --> 00:30:59,600 Can stretch in a line For 600 miles. 583 00:30:59,600 --> 00:31:01,800 They contain So much turbulent air, 584 00:31:01,800 --> 00:31:05,267 They pose a threat to aircraft. 585 00:31:05,267 --> 00:31:08,700 But the cloud theory Has a problem. 586 00:31:08,700 --> 00:31:11,333 Sahara clouds do not Last terribly long. 587 00:31:11,333 --> 00:31:13,233 The heat is so intense. 588 00:31:13,233 --> 00:31:15,067 The water is so limiting 589 00:31:15,067 --> 00:31:18,467 That a cloud in the sahara Just won't last. 590 00:31:18,467 --> 00:31:21,100 That tells us that It's probably not a cloud 591 00:31:21,100 --> 00:31:22,667 Because clouds would move. 592 00:31:22,667 --> 00:31:24,200 And this is not moving. 593 00:31:27,533 --> 00:31:29,833 Narrator: on closer examination Of the image, 594 00:31:29,833 --> 00:31:32,633 Analysts notice something odd About the line. 595 00:31:32,633 --> 00:31:35,700 The line is so sharp And among the lower, 596 00:31:35,700 --> 00:31:37,200 Right-hand side. 597 00:31:37,200 --> 00:31:39,933 And then it kind of blurs Off to the other side, 598 00:31:39,933 --> 00:31:44,133 Which tells us that maybe Something's raising dust. 599 00:31:44,133 --> 00:31:46,467 And the wind is blowing In that direction. 600 00:31:48,600 --> 00:31:50,467 Could this be a roadway, right, 601 00:31:50,467 --> 00:31:52,133 Where there are lots Of vehicles traveling, 602 00:31:52,133 --> 00:31:55,167 Kicking up dust? 603 00:31:55,167 --> 00:31:59,067 Narrator: there is a 2,800-mile Trans-saharan highway. 604 00:31:59,067 --> 00:32:03,600 But it's located 1,000 miles to the east. 605 00:32:03,600 --> 00:32:05,533 Roads are not The only straight lines 606 00:32:05,533 --> 00:32:07,833 Crossing the desert. 607 00:32:07,833 --> 00:32:10,400 There is a train line In this part of the sahara, 608 00:32:10,400 --> 00:32:12,900 The western area of the desert. 609 00:32:12,900 --> 00:32:16,067 So it's possible that The train line is responsible 610 00:32:16,067 --> 00:32:19,533 For what is a linear feature. 611 00:32:19,533 --> 00:32:21,767 Narrator: A massive 220-car train 612 00:32:21,767 --> 00:32:23,900 Does cross this part Of the desert, 613 00:32:23,900 --> 00:32:26,067 Ferrying iron ore from mines 614 00:32:26,067 --> 00:32:28,067 To ships waiting On the atlantic coast. 615 00:32:28,067 --> 00:32:30,067 [ train whistle blows ] 616 00:32:30,067 --> 00:32:32,700 But the railroad track is In neighboring mauritania, 617 00:32:32,700 --> 00:32:36,600 250 miles south of the line Visible in the image. 618 00:32:38,633 --> 00:32:40,433 The transportation Infrastructure 619 00:32:40,433 --> 00:32:41,700 In the western sahara 620 00:32:41,700 --> 00:32:44,667 Is really mostly limited To the large cities. 621 00:32:44,667 --> 00:32:46,867 Transportation Through the desert is often 622 00:32:46,867 --> 00:32:49,500 By, you know, live camels 623 00:32:49,500 --> 00:32:53,400 Or four-wheel drive vehicles Or something else. 624 00:32:53,400 --> 00:32:56,500 Narrator: so what could be Moving across the desert? 625 00:32:56,500 --> 00:32:58,467 When analysts trace The line south, 626 00:32:58,467 --> 00:33:01,700 They discover that it ends At a place called bukra, 627 00:33:01,700 --> 00:33:03,933 A huge phosphate mine. 628 00:33:03,933 --> 00:33:07,567 Phosphate has many uses, Right, in modern society. 629 00:33:07,567 --> 00:33:09,900 The -- the primary One is in manufacturing 630 00:33:09,900 --> 00:33:11,867 Chemical fertilizers. 631 00:33:11,867 --> 00:33:14,533 It's also used to make Other chemicals 632 00:33:14,533 --> 00:33:16,267 That contain The element phosphorous, 633 00:33:16,267 --> 00:33:21,733 Um, ranging from explosives To pesticides. 634 00:33:21,733 --> 00:33:23,967 Clearly this white material 635 00:33:23,967 --> 00:33:26,067 Is being brought To the coastline 636 00:33:26,067 --> 00:33:28,567 To be shipped away. 637 00:33:30,767 --> 00:33:33,100 Narrator: the clues seem To indicate the line 638 00:33:33,100 --> 00:33:34,533 In the image is part of some 639 00:33:34,533 --> 00:33:37,500 Massive mineral Transport system. 640 00:33:37,500 --> 00:33:39,733 But it looks nothing Like any other phosphate 641 00:33:39,733 --> 00:33:42,100 Processing facility In the world. 642 00:33:44,400 --> 00:33:47,200 Phosphate is an ore, A rock fundamentally, 643 00:33:47,200 --> 00:33:49,767 That's crushed For its phosphate. 644 00:33:49,767 --> 00:33:53,067 In more humid environments, Uh, phosphate is hydroblasted. 645 00:33:53,067 --> 00:33:54,833 So it's effectively Mixed with water. 646 00:33:54,833 --> 00:33:58,067 And then you can pump it Along a pipe line. 647 00:33:58,067 --> 00:33:59,733 Narrator: there's not enough Water in the desert 648 00:33:59,733 --> 00:34:02,333 To pump the phosphate Through a pipeline. 649 00:34:02,333 --> 00:34:04,100 And there's no road or railroad 650 00:34:04,100 --> 00:34:06,500 Directly linking The mine to the coast. 651 00:34:06,500 --> 00:34:10,767 Something else has been built To transport the rock. 652 00:34:10,767 --> 00:34:14,700 Rare archive footage reveals Exactly what it is. 653 00:34:14,700 --> 00:34:16,600 The answer is to build A conveyor belt 654 00:34:16,600 --> 00:34:18,667 That's 60 miles long, 655 00:34:18,667 --> 00:34:23,533 Transporting thousands of tons Of phosphate per hour 656 00:34:23,533 --> 00:34:27,067 All the way from a mine Out to the ocean. 657 00:34:30,567 --> 00:34:33,067 If it's exposed To the moving air, then that -- 658 00:34:33,067 --> 00:34:35,167 Some of that dust Will be picked up. 659 00:34:35,167 --> 00:34:37,200 And that fits in, Really with the image 660 00:34:37,200 --> 00:34:39,667 Because it shows the dust Moving in one direction, 661 00:34:39,667 --> 00:34:42,967 Probably carried by the wind. 662 00:34:42,967 --> 00:34:44,667 Narrator: The satellite image has captured 663 00:34:44,667 --> 00:34:48,967 The longest conveyor belt In the world. 664 00:34:48,967 --> 00:34:53,733 It's amazing that something Built by us us puny humans 665 00:34:53,733 --> 00:34:58,467 Can have enough of a visual Effect to be visible from space. 666 00:35:06,367 --> 00:35:08,200 Narrator: An imaging satellite photographs 667 00:35:08,200 --> 00:35:10,133 A bright, human-shaped object 668 00:35:10,133 --> 00:35:14,267 Flying over california's Sierra nevada hills. 669 00:35:14,267 --> 00:35:17,800 It looks like it has legs And arms and a head. 670 00:35:17,800 --> 00:35:21,767 That's taken in infrared, uh, Which means it picks up heat. 671 00:35:21,767 --> 00:35:23,833 Whatever it is, is very hot. 672 00:35:31,233 --> 00:35:33,433 Narrator: august 2014. 673 00:35:33,433 --> 00:35:36,767 The worldview-2 satellite Orbiting over the pacific ocean 674 00:35:36,767 --> 00:35:39,733 Looks north along The u.S. West coast. 675 00:35:39,733 --> 00:35:41,567 It captures And unusual photograph 676 00:35:41,567 --> 00:35:44,833 Of the californian landscape. 677 00:35:44,833 --> 00:35:46,067 So what you're seeing here 678 00:35:46,067 --> 00:35:48,667 Is an oblique angle view Of the ground. 679 00:35:48,667 --> 00:35:50,900 And this is when We take the satellite. 680 00:35:50,900 --> 00:35:53,833 And we actually tilt it So that the camera 681 00:35:53,833 --> 00:35:55,733 Is pointing at an oblique angle. 682 00:35:55,733 --> 00:35:58,900 And it's letting you see The full breadth of landscape, 683 00:35:58,900 --> 00:36:03,133 Everything from the earth's Surface to stars above. 684 00:36:03,133 --> 00:36:05,867 Narrator: the image covers A vast stretch of central 685 00:36:05,867 --> 00:36:07,733 And northern california. 686 00:36:07,733 --> 00:36:09,100 It shows a single, bright, 687 00:36:09,100 --> 00:36:12,267 Shining object standing out From the rugged terrain. 688 00:36:12,267 --> 00:36:14,233 Well, it looks Humanoid in nature. 689 00:36:14,233 --> 00:36:16,767 It has legs And arms and a head. 690 00:36:16,767 --> 00:36:19,800 Narrator: the object in The image seems inconsistent 691 00:36:19,800 --> 00:36:22,767 With its surroundings. 692 00:36:22,767 --> 00:36:24,100 My first thought would be that 693 00:36:24,100 --> 00:36:26,100 That's some kind of A defect in the photograph. 694 00:36:26,100 --> 00:36:28,100 Looks like it's just A little white scratch 695 00:36:28,100 --> 00:36:31,633 Or a piece of missing data In the, uh, the actual file. 696 00:36:31,633 --> 00:36:37,067 It's excessively brighter than Every other feature around it. 697 00:36:37,067 --> 00:36:39,600 It's actually saturating Our sensors with light, 698 00:36:39,600 --> 00:36:41,967 So much light that the light 699 00:36:41,967 --> 00:36:45,067 Is bleeding into The surrounding pixels 700 00:36:45,067 --> 00:36:49,333 And causing this Anomaly to occur. 701 00:36:49,333 --> 00:36:50,867 Narrator: The bright white figure bears 702 00:36:50,867 --> 00:36:54,667 Some resemblance To a mountain-top statue. 703 00:36:54,667 --> 00:36:56,967 Perhaps the most famous Statue of this kind 704 00:36:56,967 --> 00:37:01,933 Is rio de janeiro's Iconic christ the redeemer. 705 00:37:01,933 --> 00:37:04,667 It stands 125 feet tall 706 00:37:04,667 --> 00:37:06,967 And took 9 years to build. 707 00:37:06,967 --> 00:37:08,500 The similarity to the shape 708 00:37:08,500 --> 00:37:11,700 In the satellite image Is striking. 709 00:37:11,700 --> 00:37:13,533 But further analysis uncovers 710 00:37:13,533 --> 00:37:16,567 A technical detail Which changes everything. 711 00:37:16,567 --> 00:37:19,967 The photo was taken by A heat-sensing camera. 712 00:37:19,967 --> 00:37:21,767 Petford: the interesting thing About this image 713 00:37:21,767 --> 00:37:23,767 Is that it's taken in infrared, 714 00:37:23,767 --> 00:37:25,333 Uh, which means It picks up heat. 715 00:37:25,333 --> 00:37:28,433 A bright white image, uh, Is clearly telling us 716 00:37:28,433 --> 00:37:31,467 That whatever it is, Is very hot. 717 00:37:31,467 --> 00:37:33,767 Narrator: scientists use Satellite thermal imaging 718 00:37:33,767 --> 00:37:37,733 To monitor potentially Dangerous natural phenomenon. 719 00:37:37,733 --> 00:37:40,167 One explosive candidate That could be responsible 720 00:37:40,167 --> 00:37:43,600 For the rogue Heat trace is a volcano. 721 00:37:47,567 --> 00:37:50,067 So we could be Looking at the very, 722 00:37:50,067 --> 00:37:52,233 Very initial eruption 723 00:37:52,233 --> 00:37:55,733 Of a big volcano as the lava 724 00:37:55,733 --> 00:37:58,333 And the magma shoots up Vertically into the air, 725 00:37:58,333 --> 00:38:01,667 Before it starts to fragment And billow into plumes 726 00:38:01,667 --> 00:38:03,200 And clouds of ash and dust. 727 00:38:06,867 --> 00:38:08,667 Narrator: Active volcanoes do exist 728 00:38:08,667 --> 00:38:11,067 On the west coast Of the united states. 729 00:38:11,067 --> 00:38:12,767 In nearby washington state, 730 00:38:12,767 --> 00:38:15,667 The devastating 1980 Eruption of mount st. Helen's 731 00:38:15,667 --> 00:38:19,067 Shot superheated rock And gas high into the sky. 732 00:38:24,067 --> 00:38:26,267 But in california, Geological records 733 00:38:26,267 --> 00:38:28,400 Tell a different story. 734 00:38:28,400 --> 00:38:29,667 There have been volcanoes 735 00:38:29,667 --> 00:38:31,633 Erupting in the past In california. 736 00:38:31,633 --> 00:38:34,133 Uh, but there's nothing There now at all, 737 00:38:34,133 --> 00:38:35,633 In any way, shape or form 738 00:38:35,633 --> 00:38:38,833 That could have produced An image such as this. 739 00:38:38,833 --> 00:38:40,833 It is not volcano country. 740 00:38:40,833 --> 00:38:45,500 Earthquakes, yes, But not volcanoes. 741 00:38:45,500 --> 00:38:47,067 Narrator: If the hot shape in the sky 742 00:38:47,067 --> 00:38:49,400 Is not from A volcanic explosion, 743 00:38:49,400 --> 00:38:51,667 Then what is it? 744 00:38:51,667 --> 00:38:54,067 It's got a large, long, uh, 745 00:38:54,067 --> 00:38:56,067 Relatively thin white column, 746 00:38:56,067 --> 00:38:58,067 A very bright column. 747 00:38:58,067 --> 00:39:00,700 Narrator: closer analysis Reveals a shimmering trail 748 00:39:00,700 --> 00:39:02,700 Visible beneath the object, 749 00:39:02,700 --> 00:39:07,567 Leading investigators to Consider another option. 750 00:39:07,567 --> 00:39:13,433 Jet packs used to be the stuff Of sci-fi and bond movies. 751 00:39:13,433 --> 00:39:15,100 But today, they're very real. 752 00:39:15,100 --> 00:39:19,267 And they're setting New records in aviation. 753 00:39:19,267 --> 00:39:20,600 Delta-wing jet packs 754 00:39:20,600 --> 00:39:23,433 Can travel up To 190 miles per hour 755 00:39:23,433 --> 00:39:27,067 At altitudes Of almost 13,000 feet. 756 00:39:27,067 --> 00:39:30,067 The shape of the bright Feature fits almost perfectly 757 00:39:30,067 --> 00:39:32,800 With the profile of a jet pack. 758 00:39:32,800 --> 00:39:35,500 But scale analysis of The image casts doubt 759 00:39:35,500 --> 00:39:37,167 On the jet pack theory. 760 00:39:37,167 --> 00:39:39,467 I know the scale Of the mountains 761 00:39:39,467 --> 00:39:41,300 Surrounding the feature. 762 00:39:41,300 --> 00:39:46,567 So upon quick glance And a few simple calculations, 763 00:39:46,567 --> 00:39:48,933 I can tell you without a doubt 764 00:39:48,933 --> 00:39:51,500 That this is not A human presence. 765 00:39:51,500 --> 00:39:53,533 This is something different. 766 00:39:53,533 --> 00:39:56,933 Narrator: the figure is around 190 feet tall, 767 00:39:56,933 --> 00:40:01,100 Approximately the same height As the leaning tower of pisa. 768 00:40:01,100 --> 00:40:02,900 That'd be an awfully Tall person. [ laughs ] 769 00:40:02,900 --> 00:40:05,700 Narrator: the discovery Of the object's size 770 00:40:05,700 --> 00:40:09,133 Leaves only one possibility For what it could be. 771 00:40:10,667 --> 00:40:15,767 The hot, flying object Must be a rocket. 772 00:40:15,767 --> 00:40:18,500 I've seen rocket launches, And they're pretty impressive. 773 00:40:18,500 --> 00:40:21,100 You see the whole rocket Engines begin to start. 774 00:40:21,100 --> 00:40:23,933 And then at t-zero, The whole vehicle lifts off. 775 00:40:29,767 --> 00:40:32,133 Uh, I did actually see, Uh, the last part 776 00:40:32,133 --> 00:40:34,767 Of a rocket launch from space During my second mission. 777 00:40:34,767 --> 00:40:36,967 The white column's Clearly visible. 778 00:40:36,967 --> 00:40:39,567 Given the -- the clarity, The crispness of the image, 779 00:40:39,567 --> 00:40:41,267 I would give it A high likelihood 780 00:40:41,267 --> 00:40:44,500 That we're looking at something Shot from a u.S. Platform. 781 00:40:47,067 --> 00:40:48,333 Narrator: Plotting the flight trajectory 782 00:40:48,333 --> 00:40:51,600 Back to the ground Reveals a launch site, 783 00:40:51,600 --> 00:40:56,167 The vandenberg air force base In california. 784 00:40:56,167 --> 00:40:59,100 Vandenberg has been home To some of the u.S. Military's 785 00:40:59,100 --> 00:41:01,333 Most highly classified rocket 786 00:41:01,333 --> 00:41:05,333 And missile tests for more Than half a century. 787 00:41:05,333 --> 00:41:08,333 So has the satellite Photograph captured evidence 788 00:41:08,333 --> 00:41:10,067 Of a secret spacecraft 789 00:41:10,067 --> 00:41:12,433 Taking off from vandenberg? 790 00:41:12,433 --> 00:41:14,100 There are certain things That you would look for. 791 00:41:14,100 --> 00:41:17,167 You'd look for, um, you know, The signature of the rocket. 792 00:41:17,167 --> 00:41:19,400 man: three, two, one, liftoff. 793 00:41:25,067 --> 00:41:28,167 Narrator: u.S. Military records Reveal that on the day 794 00:41:28,167 --> 00:41:29,500 The image was taken, 795 00:41:29,500 --> 00:41:32,167 A rocket launch did Take place from vandenberg. 796 00:41:32,167 --> 00:41:35,667 But it was no secret. 797 00:41:35,667 --> 00:41:37,967 It was the liftoff Of the worldview-3 798 00:41:37,967 --> 00:41:39,833 Earth observation satellite, 799 00:41:39,833 --> 00:41:41,233 Sister to the satellite 800 00:41:41,233 --> 00:41:44,433 That actually took The photograph. 801 00:41:44,433 --> 00:41:46,400 It was very unusual For a satellite 802 00:41:46,400 --> 00:41:48,733 To actually capture The image of launches 803 00:41:48,733 --> 00:41:50,200 From another satellite, Especially, 804 00:41:50,200 --> 00:41:52,700 In this case, uh, One of its twin satellites. 805 00:41:52,700 --> 00:41:56,333 This is one of my favorite Types of satellite imagery. 806 00:41:56,333 --> 00:41:58,333 Narrator: the remarkable image Is nothing less 807 00:41:58,333 --> 00:42:00,133 Than a family photograph 808 00:42:00,133 --> 00:42:02,067 For the silent sister satellites 809 00:42:02,067 --> 00:42:05,267 Now orbiting hundreds of miles Above the earth. 64295

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