1 00:00:10,680 --> 00:00:14,600 Speaker 1: It was a cool, clear sunny day on November eighteenth, 2 00:00:14,800 --> 00:00:18,599 Speaker 1: twenty twenty, as a small group of biologists from the 3 00:00:18,720 --> 00:00:23,840 Speaker 1: Utah Division of Wildlife Resources boarded the helicopter. As they 4 00:00:23,920 --> 00:00:27,400 Speaker 1: rose up into the sky, the vast red rock desert 5 00:00:27,520 --> 00:00:32,479 Speaker 1: terrain of southeastern Utah spread out beneath them, looking for 6 00:00:32,600 --> 00:00:37,680 Speaker 1: all the world, like the surface of Mars. The biologists 7 00:00:37,720 --> 00:00:41,240 Speaker 1: were doing a survey of bighorn sheep that were dispersed 8 00:00:41,440 --> 00:00:46,280 Speaker 1: throughout the expansive landscape. The team asked the pilot to 9 00:00:46,320 --> 00:00:49,720 Speaker 1: fly to a particularly remote part of the region which 10 00:00:49,760 --> 00:00:53,440 Speaker 1: they had yet to survey. The group were flying low 11 00:00:53,760 --> 00:00:57,480 Speaker 1: over a narrow canyon when one of the biologists suddenly 12 00:00:57,600 --> 00:01:01,840 Speaker 1: shouted out to the pilot to turn the around. What 13 00:01:02,080 --> 00:01:07,080 Speaker 1: is it, said the pilot. The biologist wasn't sure, saying 14 00:01:07,160 --> 00:01:11,360 Speaker 1: only that he'd seen something strange and that they should investigate. 15 00:01:12,760 --> 00:01:16,000 Speaker 1: The pilot pulled back on the cyclic and turned the 16 00:01:16,080 --> 00:01:20,880 Speaker 1: chopper around. As they banked and swooped down back over 17 00:01:20,920 --> 00:01:25,600 Speaker 1: the canyon. The others finally saw it too. What the 18 00:01:25,680 --> 00:01:31,440 Speaker 1: hell is that, someone muttered. It was inexplicable, a smooth, 19 00:01:31,480 --> 00:01:36,600 Speaker 1: metallic slab standing upright about three meters high appeared to 20 00:01:36,640 --> 00:01:40,679 Speaker 1: be embedded deeply into the red rock of the canyon floor. 21 00:01:41,959 --> 00:01:45,440 Speaker 1: On closer inspection, the object was revealed to be made 22 00:01:45,440 --> 00:01:51,400 Speaker 1: of metal sheets riveted into a triangular prism. Helicopter pilot 23 00:01:51,600 --> 00:01:55,000 Speaker 1: Brett Hutchings said that while the object appeared to be 24 00:01:55,120 --> 00:01:58,240 Speaker 1: human made, it had to have been deliberately placed on 25 00:01:58,320 --> 00:02:03,240 Speaker 1: the ground rather than the sky. He said, we were 26 00:02:03,360 --> 00:02:07,080 Speaker 1: kind of joking around that if one of us suddenly disappears, 27 00:02:07,400 --> 00:02:09,520 Speaker 1: then the rest of us make a run for it. 28 00:02:11,520 --> 00:02:16,080 Speaker 1: Two days later, Utah's Department of Public Safety announced the 29 00:02:16,160 --> 00:02:19,920 Speaker 1: unusual find on social media, along with a video and 30 00:02:20,080 --> 00:02:25,440 Speaker 1: photographs of the object, alongside a jaunty alien emoji. They 31 00:02:25,440 --> 00:02:28,519 Speaker 1: told the press they were bafforders to how and why 32 00:02:28,760 --> 00:02:32,040 Speaker 1: someone would put such an object there, and that its 33 00:02:32,080 --> 00:02:37,360 Speaker 1: placement on public land was unlawful. They also withheld the 34 00:02:37,440 --> 00:02:42,040 Speaker 1: exact location to prevent people from endangering themselves while trying 35 00:02:42,080 --> 00:02:46,520 Speaker 1: to find it. However, when the news went viral soon after, 36 00:02:47,080 --> 00:02:51,160 Speaker 1: within hours read it user Tim Slain had identified the 37 00:02:51,240 --> 00:02:54,720 Speaker 1: object on Google Earth by comparing the flight path of 38 00:02:54,760 --> 00:02:59,160 Speaker 1: the State biologists helicopter against the red and white sandstone 39 00:02:59,240 --> 00:03:04,160 Speaker 1: terrain from the videos. Google Earth Satellite images showed that 40 00:03:04,200 --> 00:03:08,640 Speaker 1: the monolith had been installed sometime after August twenty fifteen, 41 00:03:09,040 --> 00:03:14,720 Speaker 1: but before October twenty sixteen, around which time scrub vegetation 42 00:03:15,080 --> 00:03:19,600 Speaker 1: surrounding the site had been cleared. In other words, the 43 00:03:19,600 --> 00:03:25,720 Speaker 1: monolith had gone unnoticed for four years. You're listening to Unexplained, 44 00:03:26,280 --> 00:03:41,520 Speaker 1: and I'm Richard mclin smith. The Utah monolith was in 45 00:03:41,560 --> 00:03:45,760 Speaker 1: a red sandstone slot canyon in San Juan County, in 46 00:03:45,840 --> 00:03:49,720 Speaker 1: an area known as Lockhart Basin, part of the Bears 47 00:03:49,800 --> 00:03:57,000 Speaker 1: Ears National Monument, a remote park with no public services, parking, restrooms, 48 00:03:57,160 --> 00:04:01,800 Speaker 1: or cell phone service. To put it mildly, the spot 49 00:04:02,000 --> 00:04:05,600 Speaker 1: was difficult to reach, requiring a drive along a dirt 50 00:04:05,720 --> 00:04:11,400 Speaker 1: road followed by a considerable hike. Utah's Division of Wildlife 51 00:04:11,480 --> 00:04:17,080 Speaker 1: Services were mystified in the days following the identification of 52 00:04:17,160 --> 00:04:22,560 Speaker 1: the object's exact location. Despite Utah's Department of Public Safety's 53 00:04:22,640 --> 00:04:26,760 Speaker 1: best efforts, members of the public soon started making their 54 00:04:26,800 --> 00:04:31,400 Speaker 1: way to the strange pillar. Each side was just over 55 00:04:31,520 --> 00:04:37,520 Speaker 1: half a meter wide. It was triangular, not magnetic, seemingly hollow, 56 00:04:37,920 --> 00:04:41,240 Speaker 1: and appeared to be made of stainless steel or aluminium, 57 00:04:41,800 --> 00:04:46,080 Speaker 1: all joined together with rivets The bedrock appeared to have 58 00:04:46,120 --> 00:04:50,040 Speaker 1: been sworn to accommodate the base, which was then stuck 59 00:04:50,160 --> 00:04:55,080 Speaker 1: down with some kind of silicon adhesive. Its precise age 60 00:04:55,400 --> 00:04:59,320 Speaker 1: was hard to tell, though it was definitely human mate 61 00:04:59,600 --> 00:05:03,880 Speaker 1: For men Ny, it looked like an alien artifact, reminiscent 62 00:05:04,000 --> 00:05:08,360 Speaker 1: of the monoliths from Arthur se Clerk's Space Odyssey series, 63 00:05:08,600 --> 00:05:12,880 Speaker 1: as iconically depicted by Stanley Kubrick in his classic film 64 00:05:12,920 --> 00:05:18,200 Speaker 1: adaptation two thousand one as Space Odyssey. In the story, 65 00:05:18,640 --> 00:05:23,720 Speaker 1: they appear periodically at key points in human evolution, deposited 66 00:05:23,800 --> 00:05:27,680 Speaker 1: by aliens to guide human beings from one stage of 67 00:05:27,839 --> 00:05:34,359 Speaker 1: technological development to the next. Journalists reporting the story waxed 68 00:05:34,480 --> 00:05:39,120 Speaker 1: lyrical about the puzzling plinth. They variously described it as 69 00:05:39,160 --> 00:05:44,360 Speaker 1: a mysterious artifact, maybe from aliens, discovered out of nowhere 70 00:05:44,360 --> 00:05:47,640 Speaker 1: in the middle of the desert during the collective misery 71 00:05:47,800 --> 00:05:53,720 Speaker 1: of the COVID nineteen pandemic. Monolith grkas as they became known, 72 00:05:54,040 --> 00:05:59,559 Speaker 1: started arriving in droves, in cars, on motorbikes, some even 73 00:05:59,680 --> 00:06:03,440 Speaker 1: coming by plane, but some of the locals in that 74 00:06:03,560 --> 00:06:07,839 Speaker 1: remote corner of southeastern Utah were not so pleased with 75 00:06:07,920 --> 00:06:13,440 Speaker 1: it all. One evening, nine days after the object's discovery. 76 00:06:14,000 --> 00:06:18,239 Speaker 1: As the skies darkened and cool descended over the desert, 77 00:06:18,920 --> 00:06:24,600 Speaker 1: four men closed in on the monolith, equipped with head torches, 78 00:06:25,040 --> 00:06:30,320 Speaker 1: portable saws, ropes, and stretchers typically used for desert rescues. 79 00:06:30,839 --> 00:06:34,280 Speaker 1: The men were on a mission. One of the party 80 00:06:34,680 --> 00:06:38,240 Speaker 1: climbed up onto the shiny metal plint, then shone his 81 00:06:38,400 --> 00:06:42,000 Speaker 1: torch up into the night sky as another team member 82 00:06:42,120 --> 00:06:45,159 Speaker 1: took a photo. It would be the last shot of 83 00:06:45,200 --> 00:06:51,120 Speaker 1: the monolith standing. Base jumper Andy Lewis, along with adventure 84 00:06:51,160 --> 00:06:56,000 Speaker 1: guide Sylvan Christensen and two others, filmed themselves as they 85 00:06:56,080 --> 00:07:01,880 Speaker 1: began dismantling the metal installation, pulled out the rivets, then 86 00:07:02,040 --> 00:07:17,440 Speaker 1: put the separate panels on the stretchers and hauled them away. Eventually, 87 00:07:17,840 --> 00:07:22,360 Speaker 1: the now disassembled monolith was handed over to Utah's Bureau 88 00:07:22,440 --> 00:07:26,600 Speaker 1: of Land Management, who put the pieces into storage. The 89 00:07:26,640 --> 00:07:31,040 Speaker 1: monolith has not been seen in public since. But then 90 00:07:31,600 --> 00:07:35,760 Speaker 1: more metal columns just like it began to appear everywhere. 91 00:07:36,600 --> 00:07:40,640 Speaker 1: The first showed up outside the Romanian city of Piatra 92 00:07:40,800 --> 00:07:45,320 Speaker 1: Nampt on November twenty seventh, then disappeared a week later. 93 00:07:46,400 --> 00:07:52,400 Speaker 1: Another was spotted on top of Pine Mountain in a Tascadero, California, 94 00:07:52,480 --> 00:07:57,720 Speaker 1: also on December two. A fourth slap appeared in Albuquerque, 95 00:07:57,840 --> 00:08:01,840 Speaker 1: New Mexico, on December seventh, but was taken down the 96 00:08:01,920 --> 00:08:06,320 Speaker 1: same day. Over the next few weeks, more and more 97 00:08:06,480 --> 00:08:11,440 Speaker 1: similar objects appeared in countries across the globe, in locations 98 00:08:11,480 --> 00:08:16,800 Speaker 1: as far apart as Europe, South America, and Australia. To date, 99 00:08:17,160 --> 00:08:21,520 Speaker 1: over two hundred similar metal columns have been reported from 100 00:08:21,680 --> 00:08:26,640 Speaker 1: various locations around the world. Many of the new monoliths 101 00:08:26,800 --> 00:08:31,760 Speaker 1: were seemingly built by local artists, imitating the Utah installation, 102 00:08:32,600 --> 00:08:38,000 Speaker 1: but the mystery of who made the original remained. Speculation 103 00:08:38,320 --> 00:08:41,280 Speaker 1: was rife as to who might have done it, and 104 00:08:41,360 --> 00:08:46,319 Speaker 1: there was one prime candidate, an eccentric artist who lived 105 00:08:46,360 --> 00:08:50,839 Speaker 1: for many years in the desert country of New Mexico. 106 00:08:51,040 --> 00:08:56,840 Speaker 1: Minimalist sculptor John McCracken was born in Berkeley, California, the 107 00:08:56,880 --> 00:09:01,680 Speaker 1: son of ranchers Tall and Rangy. With a weather beaten face, 108 00:09:02,320 --> 00:09:06,800 Speaker 1: McCracken had eyes, wrote one journalist that appeared to have 109 00:09:06,880 --> 00:09:11,560 Speaker 1: stared too long at the sun. The artist was a 110 00:09:11,640 --> 00:09:16,120 Speaker 1: keen reader of science fiction. McCracken was also friends with 111 00:09:16,240 --> 00:09:20,840 Speaker 1: Leonard Nimoy, who played the pointy eared vulcan hero Spock 112 00:09:21,120 --> 00:09:24,880 Speaker 1: in the original Star Trek TV series and films, who 113 00:09:24,920 --> 00:09:31,480 Speaker 1: collected his work. McCracken believed fervently in time travel and 114 00:09:31,679 --> 00:09:37,520 Speaker 1: extraterrestrial life, including the theory that advanced alien races had 115 00:09:37,559 --> 00:09:40,960 Speaker 1: been visiting Earth for a very long time and were 116 00:09:41,040 --> 00:09:46,280 Speaker 1: committed to helping humanity evolve. Who was a precedent for 117 00:09:46,320 --> 00:09:50,960 Speaker 1: the Utah Object In McCracken's work, he'd made a metallic 118 00:09:51,080 --> 00:09:55,800 Speaker 1: monolith nearly identical to the Desert mystery piece, now in 119 00:09:55,840 --> 00:09:59,760 Speaker 1: the possession of gallery owner david's Werner and on display 120 00:09:59,800 --> 00:10:03,840 Speaker 1: in New York City. There was just one slight problem 121 00:10:04,160 --> 00:10:10,200 Speaker 1: with McCracken being responsible for the Utah Monolith. The artist 122 00:10:10,480 --> 00:10:14,080 Speaker 1: died in twenty eleven from a brain tumor at the 123 00:10:14,120 --> 00:10:18,240 Speaker 1: age of seventy six, a good four or five years 124 00:10:18,360 --> 00:10:30,480 Speaker 1: before the object appeared. When John McCracken's son Patrick heard 125 00:10:30,520 --> 00:10:34,840 Speaker 1: the news about the Utah Monolith, he got chills. It 126 00:10:34,960 --> 00:10:38,560 Speaker 1: reminded him of a conversation he'd had when he'd visited 127 00:10:38,600 --> 00:10:42,800 Speaker 1: his father back in two thousand and two. At that time, 128 00:10:43,200 --> 00:10:47,080 Speaker 1: the artist was living in Meada, Nalis, New Mexico in 129 00:10:47,160 --> 00:10:52,280 Speaker 1: a small Adobe house overlooking a mesa. As father and 130 00:10:52,400 --> 00:10:56,960 Speaker 1: son stood outside gazing up at the night sky, John 131 00:10:57,280 --> 00:11:00,840 Speaker 1: said he'd like to leave his artwork in remote places 132 00:11:01,120 --> 00:11:05,560 Speaker 1: to be discovered later. He wasn't your average sort of dad, 133 00:11:05,920 --> 00:11:09,839 Speaker 1: Patrick recalled, going on to say that he didn't think 134 00:11:09,880 --> 00:11:13,440 Speaker 1: his dad was joking, and that the monolith's installation in 135 00:11:13,640 --> 00:11:18,720 Speaker 1: Utah was very much something his father would do. Quite 136 00:11:18,840 --> 00:11:21,480 Speaker 1: how it would have got there five years after his 137 00:11:21,640 --> 00:11:26,160 Speaker 1: death is anyone's guess. Perhaps he found the secret to 138 00:11:26,240 --> 00:11:32,040 Speaker 1: time travel after all. In December twenty twenty, the David's 139 00:11:32,080 --> 00:11:35,880 Speaker 1: Werner Gallery put out a statement that the mystery Utah 140 00:11:35,960 --> 00:11:41,640 Speaker 1: monolith was indeed a bona fide McCracken, although Werner claimed 141 00:11:41,679 --> 00:11:46,240 Speaker 1: to have no idea who put it there. However, many 142 00:11:46,240 --> 00:11:50,000 Speaker 1: friends of the artists disagreed. A partner at the gallery 143 00:11:50,160 --> 00:11:54,120 Speaker 1: who had worked closely with McCracken over the years, also 144 00:11:54,160 --> 00:11:59,400 Speaker 1: disagreed with Werner, as did a number of the gallery staff. Eventually, 145 00:11:59,720 --> 00:12:03,640 Speaker 1: David Bids Werner conceded that the monolith was most likely 146 00:12:03,760 --> 00:12:07,280 Speaker 1: not a macraken piece, but had instead been made by 147 00:12:07,360 --> 00:12:12,319 Speaker 1: someone else, paying homage to the deceased artist. The puzzle 148 00:12:12,679 --> 00:12:17,960 Speaker 1: remained unsolved. The word monolith is somewhat of a misnomer 149 00:12:18,240 --> 00:12:24,240 Speaker 1: for Utah's strange metallic plinth and its subsequent copycats. The 150 00:12:24,280 --> 00:12:29,080 Speaker 1: Dictionary definition of a monolith is a large, single, upright 151 00:12:29,320 --> 00:12:33,920 Speaker 1: block of stone, especially one shaped into or serving as 152 00:12:33,920 --> 00:12:39,319 Speaker 1: a pillar or monument. There are several ancient and mysterious 153 00:12:39,360 --> 00:12:43,360 Speaker 1: monoliths around the world. One of the oldest is thought 154 00:12:43,400 --> 00:12:47,320 Speaker 1: to be the broken Manere of Agrath, a Neolithic relic 155 00:12:47,640 --> 00:12:51,640 Speaker 1: dating from around four thousand, five hundred BCE in the 156 00:12:51,679 --> 00:12:57,120 Speaker 1: province of Brittany, France, now fallen at about twenty one 157 00:12:57,200 --> 00:13:00,440 Speaker 1: meters high. When it was upright, it would have houred 158 00:13:00,480 --> 00:13:05,800 Speaker 1: over the surrounding landscape. The village of Asuka in Nara, 159 00:13:05,880 --> 00:13:10,240 Speaker 1: central Japan, which dates back to two hundred and fifty CE, 160 00:13:10,760 --> 00:13:15,160 Speaker 1: is also famous for its mysterious stones. The most well 161 00:13:15,200 --> 00:13:19,240 Speaker 1: known is the rock Ship of Masuda, comprised of a 162 00:13:19,320 --> 00:13:23,920 Speaker 1: huge block of granite, approximately eleven meters long, eight meters 163 00:13:23,960 --> 00:13:28,640 Speaker 1: wide and five meters high and weighing over eight hundred tons, 164 00:13:29,280 --> 00:13:33,360 Speaker 1: with a flattened top, curved sides, and two meters squared 165 00:13:33,440 --> 00:13:37,440 Speaker 1: holes chiseled out at the top. It resembles the upturned 166 00:13:37,520 --> 00:13:41,000 Speaker 1: hull of a boat and is considered a technical marvel 167 00:13:41,080 --> 00:13:46,000 Speaker 1: for its age. Arguments still rage over its purpose. Some 168 00:13:46,040 --> 00:13:48,920 Speaker 1: say it was a marker for a large burial tomb, 169 00:13:49,400 --> 00:13:54,880 Speaker 1: others that it was used for astronomical observations. Then there 170 00:13:54,920 --> 00:13:59,400 Speaker 1: are the Bulbeck Stones, six massive blocks of stone in 171 00:13:59,520 --> 00:14:04,880 Speaker 1: what was ancient Heliopolis now modern day Lebanon, thought to 172 00:14:04,920 --> 00:14:09,480 Speaker 1: be intended components of a planned temple of Jupiter. One 173 00:14:09,840 --> 00:14:12,640 Speaker 1: is known as the Stone of the Pregnant Woman and 174 00:14:12,720 --> 00:14:17,320 Speaker 1: thought to weigh around one thousand tons. The biggest, the 175 00:14:17,360 --> 00:14:22,120 Speaker 1: Forgotten Stone, weighing an estimated sixteen hundred and fifty tons, 176 00:14:22,600 --> 00:14:25,440 Speaker 1: is believed to have been the largest known stone to 177 00:14:25,520 --> 00:14:29,520 Speaker 1: have been quarried in human history. But it seems that 178 00:14:29,600 --> 00:14:33,240 Speaker 1: the great size of these stones was also their downfall, 179 00:14:34,200 --> 00:14:38,000 Speaker 1: perhaps just too huge to maneuver. In the end, they 180 00:14:38,000 --> 00:14:41,400 Speaker 1: were never being removed from the quarry and still lie 181 00:14:41,480 --> 00:14:44,240 Speaker 1: close to where they were cut from the surrounding rock. 182 00:14:45,440 --> 00:14:50,080 Speaker 1: Although their origins are obscure, All these ancient monoliths are 183 00:14:50,200 --> 00:14:54,640 Speaker 1: very obviously the work of humans hewn from earth rocks. 184 00:14:55,320 --> 00:15:07,000 Speaker 1: But what about something a little less earthly? The night 185 00:15:07,080 --> 00:15:11,600 Speaker 1: of October nineteenth twenty seventeen was a typically tranquil one 186 00:15:11,920 --> 00:15:16,680 Speaker 1: at the summit of Mount Holeakala on the island of Maui, Hawaii. 187 00:15:17,680 --> 00:15:21,600 Speaker 1: The tops of fluffy white clouds covering the terrain hundreds 188 00:15:21,640 --> 00:15:25,920 Speaker 1: of meters below glimmered dimly, reflecting the light from a 189 00:15:25,960 --> 00:15:33,000 Speaker 1: myriad of stars overhead. The observatory's white telescope dome moved slowly, 190 00:15:33,720 --> 00:15:37,600 Speaker 1: motor drives whirring softly, as the one point eight meter 191 00:15:37,760 --> 00:15:43,040 Speaker 1: telescope inside precisely tracked the slow rotation of the night sky. 192 00:15:44,360 --> 00:15:48,160 Speaker 1: The two telescopes of the Panoramic Survey Telescope and Rapid 193 00:15:48,240 --> 00:15:52,200 Speaker 1: Response System, or PAN Stars, were built with the same 194 00:15:52,360 --> 00:15:56,320 Speaker 1: wide field design used in the Hubble Telescope, part of 195 00:15:56,360 --> 00:16:00,640 Speaker 1: a program funded by NASA to find and track asteroids 196 00:16:00,720 --> 00:16:06,360 Speaker 1: and comets in Earth's neighborhood. The next morning, variously colored 197 00:16:06,400 --> 00:16:11,120 Speaker 1: lights blinked on the console in the control room. Astronomer 198 00:16:11,200 --> 00:16:14,440 Speaker 1: Robert Werick returned to his desk with a fresh cup 199 00:16:14,480 --> 00:16:18,560 Speaker 1: of coffee and continued his work, poring over the images 200 00:16:18,600 --> 00:16:23,200 Speaker 1: and data that the Panstar telescope had collected the previous night. 201 00:16:24,360 --> 00:16:29,040 Speaker 1: So far, he'd found nothing noteworthy, but just then Wherick 202 00:16:29,200 --> 00:16:32,880 Speaker 1: noticed with interest a faint point of light on one 203 00:16:32,920 --> 00:16:37,320 Speaker 1: of the images, which, by referring to subsequent images, could 204 00:16:37,360 --> 00:16:42,480 Speaker 1: be seen moving noticeably across the starry background, a typical 205 00:16:42,600 --> 00:16:48,600 Speaker 1: telltale sign of a small, fast moving asteroid. The astronomer 206 00:16:48,680 --> 00:16:52,920 Speaker 1: made a note to keep track of it. Sure enough, 207 00:16:53,360 --> 00:16:58,560 Speaker 1: on subsequent nights he observed the same object again. The 208 00:16:58,600 --> 00:17:03,680 Speaker 1: extra observations allowed him to calculate the orbit reasonably accurately, 209 00:17:04,119 --> 00:17:08,919 Speaker 1: and those orbital computations did not fit with any asteroid 210 00:17:09,040 --> 00:17:14,040 Speaker 1: or comet that had ever been observed before. Robert Werwick 211 00:17:14,359 --> 00:17:18,440 Speaker 1: had found an object that must have come from interstellar space. 212 00:17:19,560 --> 00:17:22,919 Speaker 1: It was an arrival that astronomers had been waiting a 213 00:17:23,000 --> 00:17:28,159 Speaker 1: long time for. As observations came in from other large 214 00:17:28,200 --> 00:17:32,159 Speaker 1: telescopes around the world, the trajectory of the object was 215 00:17:32,200 --> 00:17:37,680 Speaker 1: more accurately confirmed. At first, it was classified as a comet. 216 00:17:38,640 --> 00:17:43,000 Speaker 1: It had been discovered on September ninth, approximately forty days 217 00:17:43,200 --> 00:17:45,920 Speaker 1: after it had passed its closest point to the Sun, 218 00:17:46,400 --> 00:17:50,280 Speaker 1: and it was already hurtling back out into interstellar space. 219 00:17:51,160 --> 00:17:55,840 Speaker 1: But there was something very strange about it. Comets are 220 00:17:55,880 --> 00:18:00,200 Speaker 1: typically small bodies of dirty ice which warm up they 221 00:18:00,320 --> 00:18:04,240 Speaker 1: pass around the Sun, causing the gas to sublimate around 222 00:18:04,280 --> 00:18:08,480 Speaker 1: its core. This creates what's known as a coma, which 223 00:18:08,560 --> 00:18:13,640 Speaker 1: also produces a pronounced tale of gas and dust. This 224 00:18:13,760 --> 00:18:17,960 Speaker 1: new object showed none of those signs. Some of the 225 00:18:18,000 --> 00:18:23,080 Speaker 1: world's largest optical telescopes, including the Hubble Space Telescope and 226 00:18:23,160 --> 00:18:27,720 Speaker 1: the Seti Institutes Radio Telescope, were then turned on the object, 227 00:18:28,000 --> 00:18:32,040 Speaker 1: which was already very faint and fast heading toward the 228 00:18:32,080 --> 00:18:36,720 Speaker 1: outer reaches of the Solar System. Radio data was examined 229 00:18:36,960 --> 00:18:40,280 Speaker 1: to see if it might be transmitting anything, but nothing 230 00:18:40,440 --> 00:18:45,679 Speaker 1: was found. However, analysis by Karen Meech from the Institute 231 00:18:45,680 --> 00:18:49,199 Speaker 1: for Astronomy in Hawaii found that the object varied in 232 00:18:49,240 --> 00:18:54,159 Speaker 1: brightness by a factor of ten every seven hours. No 233 00:18:54,359 --> 00:18:58,560 Speaker 1: previously known asteroid or comet had varied so widely in 234 00:18:58,600 --> 00:19:03,119 Speaker 1: brightness and had such a large ratio between length and width. 235 00:19:03,760 --> 00:19:19,720 Speaker 1: It was an extremely unusual monolith hurtling through space. Previously 236 00:19:19,800 --> 00:19:23,879 Speaker 1: known celestial bodies with an elongated shape similar to the 237 00:19:23,920 --> 00:19:27,840 Speaker 1: mystery object had been no more than three times longer 238 00:19:27,880 --> 00:19:31,880 Speaker 1: than they were white. This object was around four hundred 239 00:19:31,920 --> 00:19:37,600 Speaker 1: meters long but only forty meters wide. Whatever this thing was, 240 00:19:38,040 --> 00:19:41,640 Speaker 1: it was cigar shape, and instead of rotating around its 241 00:19:41,680 --> 00:19:45,680 Speaker 1: long axis, it was tumbling end over end through space. 242 00:19:46,800 --> 00:19:50,320 Speaker 1: It had a dark reddish hue similar to other asteroids 243 00:19:50,359 --> 00:19:53,960 Speaker 1: from the Outer Solar System, but appeared to be completely 244 00:19:54,000 --> 00:20:00,919 Speaker 1: inert without the faintest hint of any emissions, suggestive of 245 00:20:00,960 --> 00:20:04,000 Speaker 1: an object that was a dense composite of rock and 246 00:20:04,119 --> 00:20:08,800 Speaker 1: metals with a surface reddened by light years of irradiation 247 00:20:09,040 --> 00:20:13,840 Speaker 1: from cosmic rays. When the question of an official classification 248 00:20:14,080 --> 00:20:18,439 Speaker 1: and name first came up, Rama was suggested from the 249 00:20:18,520 --> 00:20:23,320 Speaker 1: name given to an alien spacecraft discovered under similar circumstances 250 00:20:23,640 --> 00:20:28,479 Speaker 1: in Arthur C. Clark's nineteen seventy three novel Rendezvous with Rama. 251 00:20:29,720 --> 00:20:33,840 Speaker 1: With scientists unable to determine what it was exactly, the 252 00:20:33,920 --> 00:20:36,879 Speaker 1: object was eventually put in a new class all of 253 00:20:36,920 --> 00:20:42,520 Speaker 1: its own and reclassified as interstellar asteroid one I two 254 00:20:42,760 --> 00:20:47,480 Speaker 1: zero one seven U one. It was also given the 255 00:20:47,560 --> 00:20:52,639 Speaker 1: name O Muamoor, from the Hawaiian word meaning scout or 256 00:20:52,840 --> 00:20:57,359 Speaker 1: first distant messenger, to reflect the notion that the object 257 00:20:57,520 --> 00:21:00,639 Speaker 1: was like a messenger sent from the distance and past 258 00:21:00,800 --> 00:21:06,120 Speaker 1: and depths of space to reach out to humanity. Nobody 259 00:21:06,440 --> 00:21:09,880 Speaker 1: could work out which star System. Oh muh Moor had 260 00:21:09,920 --> 00:21:15,679 Speaker 1: come from planets, asteroids, and comets in our Solar System 261 00:21:15,920 --> 00:21:20,560 Speaker 1: orbit around the Sun in closed loops. Oh muor Moor's 262 00:21:20,600 --> 00:21:25,240 Speaker 1: path was hyperbolic. It had come hurtling in at just 263 00:21:25,359 --> 00:21:29,280 Speaker 1: over twenty six kilometers per second relative to the Sun's 264 00:21:29,320 --> 00:21:33,560 Speaker 1: motion from above the disk of the Solar System, so 265 00:21:33,840 --> 00:21:38,520 Speaker 1: fast that the Sun's gravity could only deflect its path slightly. 266 00:21:39,840 --> 00:21:43,320 Speaker 1: Why was it such an unusual shape, and how come 267 00:21:43,359 --> 00:21:47,560 Speaker 1: its outward trajectory away from the Sun showed some non 268 00:21:47,640 --> 00:21:53,919 Speaker 1: gravitational acceleration, typical behavior for a comet ejecting dust and 269 00:21:54,080 --> 00:21:57,600 Speaker 1: water vapor to give it an extra push, but not 270 00:21:57,840 --> 00:22:03,640 Speaker 1: for a seemingly inert object like O muamor. One year 271 00:22:03,880 --> 00:22:09,000 Speaker 1: after O Muamua was discovered, a startling hypothesis was put 272 00:22:09,080 --> 00:22:14,280 Speaker 1: forward by two Harvard astronomers, Avi Lobe and Schmuel Bayali 273 00:22:14,840 --> 00:22:20,520 Speaker 1: in no lesser publication than the respected Astrophysical journal Letters. 274 00:22:21,200 --> 00:22:27,000 Speaker 1: Having analyzed the objects excessive radial acceleration and dimensions, the 275 00:22:27,080 --> 00:22:31,639 Speaker 1: pair concluded that O Muama represented a new class of 276 00:22:31,800 --> 00:22:37,720 Speaker 1: thin interstellar material, possibly quote produced naturally through a yet 277 00:22:37,880 --> 00:22:42,639 Speaker 1: unknown process in the interstellar medium. But they also proposed 278 00:22:42,840 --> 00:22:47,159 Speaker 1: that O Mua Mua could have an artificial origin, being 279 00:22:47,240 --> 00:22:52,160 Speaker 1: quite possibly a probe designed for interstellar travel, a type 280 00:22:52,200 --> 00:22:56,560 Speaker 1: of interstellar light sail. Perhaps. The pair went on to 281 00:22:56,720 --> 00:23:01,080 Speaker 1: argue that light sales with similar dimensions had already been 282 00:23:01,080 --> 00:23:06,320 Speaker 1: built by our own civilization. Such light sail technology might 283 00:23:06,359 --> 00:23:11,479 Speaker 1: be used by advanced alien civilizations to transport cargo between 284 00:23:11,560 --> 00:23:17,119 Speaker 1: planets or stars, they suggest it. Or perhaps Ohmoormoor is 285 00:23:17,160 --> 00:23:21,960 Speaker 1: a piece of space debris no longer operational and ejected 286 00:23:22,040 --> 00:23:26,520 Speaker 1: from a planetary system, which would account for its unusual geometry, 287 00:23:26,960 --> 00:23:34,560 Speaker 1: low thermal emissions, high reflectivity, and strange trajectory. The object's 288 00:23:34,600 --> 00:23:38,920 Speaker 1: red surface color, very similar to the organic rich surfaces 289 00:23:38,960 --> 00:23:42,960 Speaker 1: of normal Solar System comets, could just be a covering 290 00:23:43,000 --> 00:23:48,280 Speaker 1: of interstellar dust, they wrote. But the Harvard astronomers went 291 00:23:48,400 --> 00:24:00,440 Speaker 1: even further. Using existing pan stars data from known astrais 292 00:24:00,119 --> 00:24:04,440 Speaker 1: ut Avi Lobe and Schmuel bay Aali calculated that there 293 00:24:04,440 --> 00:24:07,959 Speaker 1: should be quite a lot of O Muamor like objects 294 00:24:08,040 --> 00:24:12,800 Speaker 1: out there. If so, why weren't we seeing more? They 295 00:24:12,840 --> 00:24:17,199 Speaker 1: concluded that the discrepancy meant O Muamor was not on 296 00:24:17,280 --> 00:24:23,280 Speaker 1: a random trajectory, but instead a targeted probe. They later 297 00:24:23,359 --> 00:24:27,280 Speaker 1: stated in their paper that O Muamor might even be 298 00:24:27,359 --> 00:24:32,960 Speaker 1: a fully operational probe sent intentionally to Earth's vicinity by 299 00:24:33,000 --> 00:24:37,919 Speaker 1: an alien civilization. By the time the pair had published 300 00:24:37,920 --> 00:24:41,080 Speaker 1: their startling paper, it was too late to chase O 301 00:24:41,240 --> 00:24:46,040 Speaker 1: Muamor with rockets. The technology did exist, but it wasn't 302 00:24:46,119 --> 00:24:51,200 Speaker 1: available to deploy for the strange object's sudden appearance four 303 00:24:51,320 --> 00:24:56,400 Speaker 1: years earlier. In November twenty fourteen, the European Space Agency's 304 00:24:56,680 --> 00:25:01,320 Speaker 1: Rosetta probe became the first spacecraft to perform a soft 305 00:25:01,400 --> 00:25:06,359 Speaker 1: landing on the surface of a comet. Things didn't exactly 306 00:25:06,400 --> 00:25:10,879 Speaker 1: go to plan. The harpoon system failed, causing the craft 307 00:25:10,960 --> 00:25:16,560 Speaker 1: to tumble for two hours before it finally settled. Nevertheless, 308 00:25:17,000 --> 00:25:21,399 Speaker 1: the probe did send back some intriguing data, finding ammonia, 309 00:25:21,760 --> 00:25:28,000 Speaker 1: hydrogen cyanide, and hydrogen sulfide on the comet's surface. In 310 00:25:28,080 --> 00:25:32,240 Speaker 1: twenty twenty two, the European Space Agency announced that its 311 00:25:32,359 --> 00:25:37,360 Speaker 1: new Comet Interceptor project will launch in twenty twenty nine. 312 00:25:37,680 --> 00:25:41,320 Speaker 1: Designed to lie in wait for long period comets coming 313 00:25:41,359 --> 00:25:44,119 Speaker 1: from the Oort Cloud on the very edge of the 314 00:25:44,200 --> 00:25:48,199 Speaker 1: Solar System, the probe will also be poised to potentially 315 00:25:48,200 --> 00:25:53,160 Speaker 1: perform a close encounter with any other small interstellar object 316 00:25:53,480 --> 00:25:58,840 Speaker 1: such as O Muamoor should one come by back on Earth. 317 00:25:59,240 --> 00:26:02,800 Speaker 1: Metallic oneths like the one first seen in Utah in 318 00:26:02,920 --> 00:26:08,480 Speaker 1: twenty twenty still appear fairly often. In June twenty twenty four, 319 00:26:08,880 --> 00:26:13,240 Speaker 1: Las Vegas police found another large metal pillar made out 320 00:26:13,280 --> 00:26:17,480 Speaker 1: of a reflective sheet of metal and molded into a prism. 321 00:26:17,920 --> 00:26:21,080 Speaker 1: It was found jutting out of rocks near Gas Peak, 322 00:26:21,600 --> 00:26:26,320 Speaker 1: just outside of Las Vegas. The authorities removed it and 323 00:26:26,400 --> 00:26:30,639 Speaker 1: took it to a secret location. It's still not clear 324 00:26:30,760 --> 00:26:36,400 Speaker 1: exactly who was behind these objects and what their aim is. Meanwhile, 325 00:26:36,920 --> 00:26:41,680 Speaker 1: what any advanced alien civilization observing us from a distance 326 00:26:42,040 --> 00:26:45,359 Speaker 1: is making of our puny attempts to reach out and 327 00:26:45,520 --> 00:26:50,360 Speaker 1: touch strange large monoliths that come hurtling by our planet 328 00:26:51,000 --> 00:27:03,320 Speaker 1: remains unexplained. Thank you as ever for listening to the show. 329 00:27:03,640 --> 00:27:06,600 Speaker 1: Please subscribe and rate it if you haven't already done so. 330 00:27:07,280 --> 00:27:10,320 Speaker 1: In some other news, Unexplained will be coming to YouTube 331 00:27:10,440 --> 00:27:13,480 Speaker 1: very shortly in video form, so please watch out for 332 00:27:13,560 --> 00:27:16,840 Speaker 1: future developments there. You can subscribe to the channel at 333 00:27:16,880 --> 00:27:20,880 Speaker 1: YouTube dot com, forward slash at Unexplained Pod You can 334 00:27:20,920 --> 00:27:23,919 Speaker 1: also now find us on TikTok at TikTok dot com, 335 00:27:23,960 --> 00:27:28,360 Speaker 1: Forward Slash at Unexplained Podcast. This episode was written by 336 00:27:28,440 --> 00:27:33,880 Speaker 1: Diane Hope and produced by me Richard McLain Smith. Diane 337 00:27:33,920 --> 00:27:36,880 Speaker 1: is an audio producer and sound recordsed in her own right. 338 00:27:37,280 --> 00:27:40,120 Speaker 1: You can find out more about her work at Dianehope 339 00:27:40,200 --> 00:27:44,159 Speaker 1: dot com and on Instagram at in the sound Field. 340 00:27:45,400 --> 00:27:49,680 Speaker 1: Unexplained as an Avy Club Productions podcast created by Richard 341 00:27:49,720 --> 00:27:53,879 Speaker 1: McClain Smith. All other elements of the podcast, including the music, 342 00:27:54,280 --> 00:27:58,879 Speaker 1: are also produced by me Richard McClain smith. Unexplained. The 343 00:27:58,880 --> 00:28:02,879 Speaker 1: book and audiobook is now available to buy worldwide. You 344 00:28:02,960 --> 00:28:07,760 Speaker 1: can purchase from Amazon, Barnes and Noble, Waterstones, and other bookstores. 345 00:28:08,440 --> 00:28:11,520 Speaker 1: Please subscribe to and rate the show wherever you get 346 00:28:11,520 --> 00:28:14,280 Speaker 1: your podcasts, and feel free to get in touch with 347 00:28:14,359 --> 00:28:17,720 Speaker 1: any thoughts or ideas regarding the stories you've heard on 348 00:28:17,760 --> 00:28:20,520 Speaker 1: the show. Perhaps you have an explanation of your own 349 00:28:20,560 --> 00:28:23,280 Speaker 1: you'd like to share. You can find out more at 350 00:28:23,359 --> 00:28:27,400 Speaker 1: Unexplained podcast dot com and reach us online through Twitter 351 00:28:27,640 --> 00:28:32,159 Speaker 1: at Unexplained Pod and Facebook at Facebook dot com. Forward 352 00:28:32,200 --> 00:30:01,920 Speaker 1: Slash Unexplained podcast S he s