Science Channel HD A once-in-a-lifetime visit to NASA; evidence of aliens in Chile; a UFO video captured by the military; the largest telescope on Earth. 2026-10-27 Josh's journey continues on remote Easter Island, where ancient alien theorists believe extraterrestrials visited a millennium ago; the site of a recent meteorite strike in Zimbabwe that could prove life on Earth began in outer space. 2026-10-27 The hunt for alien life continues in Zimbabwe, where Josh interviews witnesses from one of the largest UFO sightings in modern history; the infamous case that has become known as Europe's Roswell in England. 2026-10-27 Josh's epic search for extraterrestrial life comes to a close in the USA, where a legendary investigation team brings him to a hot case in Arkansas; a researcher who may have new information on the mother of all UFOs. 2026-10-27 Josh's journey continues on remote Easter Island, where ancient alien theorists believe extraterrestrials visited a millennium ago; the site of a recent meteorite strike in Zimbabwe that could prove life on Earth began in outer space. 2026-10-27 The hunt for alien life continues in Zimbabwe, where Josh interviews witnesses from one of the largest UFO sightings in modern history; the infamous case that has become known as Europe's Roswell in England. 2026-10-27 Josh's epic search for extraterrestrial life comes to a close in the USA, where a legendary investigation team brings him to a hot case in Arkansas; a researcher who may have new information on the mother of all UFOs. 2026-10-27 A once-in-a-lifetime visit to NASA; evidence of aliens in Chile; a UFO video captured by the military; the largest telescope on Earth. 2026-10-27 Mary Magdalene played a pivotal role in early Christianity and witnessed the execution and resurrection of Jesus Christ; experts investigate the truth behind her mysterious disappearance and embark on a quest to locate her undiscovered remains. 2026-10-27 The ancient site of Göbekli Tepe is the oldest building complex ever discovered and continues to baffle archaeologists; experts investigate new theories behind its construction as a possible commemoration to a cataclysmic event. 2026-10-27 Legends Hypershock and Bite Force face off in an epic showdown, while up-and-comers try to prove they have what it takes to be crowned 2018 BattleBots World Champion. 2026-10-27 Reigning champion Tombstone takes on the legendary Gigabyte as the battles heat up to take home the renowned BattleBots trophy. 2026-10-27 A Mars mission captures an image of a strange structure on the planet; an intriguing sight on the dark side of the moon; a planet-eating star gives scientists a peek of Earth's bleak future. 2026-10-27 Supernovas are the violent death of giant stars, and new discoveries reveal that these cataclysmic events create the elements that are essential to all life in the universe. 2026-10-27 New discoveries cause astronomers to question if the Big Bang really happened; using the latest science, they investigate if it wasn't just the start of the universe but many mysterious multiverses. 2026-10-27 A Navy seaman experiences strange events in the heart of the Bermuda Triangle; an Air Force Staff Sergeant is confronted by an otherworldly being in Iraq; a tech sergeant discovers a haunting visitor in her air base house. 2026-10-27 A Russian Infantryman fights an unknown presence in a Chechen forest. 2026-10-27 An intelligence analyst on a secret mission makes an unearthly discovery. 2026-10-27 An unknown presence pulls an Armed Forces officer into a living nightmare. 2026-10-27 An unearthly presence at a nuclear launch site in Cyprus visits a UN peacekeeper and helps him fight off a deadly enemy. 2026-10-27 A museum in South London contains a disturbing tattered hat made of brown felt and decorated with more than 80 human teeth; using the latest imaging technology, experts investigate to uncover the macabre origins of this mysterious Victorian-era cap. 2026-10-27 Investigating whether a machine can read personalities; an ancient golden mask painted with human blood; a cursed chicken pot. 2026-10-27 A minuscule metal sphere containing two microscopic holes could be the smallest murder weapon in history; experts explore how this tiny object is linked to one of the most bizarre true crime cases of the 20th century. 2026-10-27 A stone sphere, a hook and five fragments of wood are the only objects ever discovered inside the Great Pyramid of Giza; experts investigate if they can explain the mysteries behind the only surviving Wonder of the Ancient World. 2026-10-27 In 1953, a team of archaeologists uncovers a bizarre, plastered human skull in the ancient city of Jericho; experts investigate the mysterious purpose and identity behind this 9,000-year-old clay-covered artifact. 2026-10-28 A musician captures a strange object flying over a highway in California; a tourist takes the most compelling UFO photo ever; two friends fear they were abducted on a road trip. 2026-10-28 A man shares an original Area 51 video from 1992 for the first time; multiple people capture a Texas UFO sighting; a man films an unusual hovering object in Utah. 2026-10-28 Don Wildman goes on a quest to uncover the real story behind the centuries-old mystery of the Loch Ness Monster and to explore a few of the biggest hoaxes associated with the aquatic beast that locals call Nessie. 2026-10-28 A musician captures a strange object flying over a highway in California; a tourist takes the most compelling UFO photo ever; two friends fear they were abducted on a road trip. 2026-10-28 A man shares an original Area 51 video from 1992 for the first time; multiple people capture a Texas UFO sighting; a man films an unusual hovering object in Utah. 2026-10-28 Don Wildman goes on a quest to uncover the real story behind the centuries-old mystery of the Loch Ness Monster and to explore a few of the biggest hoaxes associated with the aquatic beast that locals call Nessie. 2026-10-28 In 1953, a team of archaeologists uncovers a bizarre, plastered human skull in the ancient city of Jericho; experts investigate the mysterious purpose and identity behind this 9,000-year-old clay-covered artifact. 2026-10-28 A museum in South London contains a disturbing tattered hat made of brown felt and decorated with more than 80 human teeth; using the latest imaging technology, experts investigate to uncover the macabre origins of this mysterious Victorian-era cap. 2026-10-28 Investigating whether a machine can read personalities; an ancient golden mask painted with human blood; a cursed chicken pot. 2026-10-28 A brutal match-up between Icewave and Yeti ignites the Battlebox, while the best bots in the world flex their gears. 2026-10-28 World-class robots Bronco and Bombshell go head-to-head as the elite group of robots compete for the title of 2018 BattleBots World Champion. 2026-10-28 The discovery of geysers on a moon; NASA's mission to detect life; an object is spotted approaching an asteroid. 2026-10-28 Black holes are not the violent monsters people think they are, and new discoveries reveal that they might have been essential to creating stars, giving light, and building the universe itself. 2026-10-28 Discoveries about interstellar space, the space between the universe's stars, reveal that it's not empty and unremarkable as previously thought, but filled with weird objects and strange phenomena that might hold the darkest secrets of the cosmos. 2026-10-28 The latest discoveries suggest life beyond this planet; scientists investigate if earth's life began elsewhere in the universe, and whether humans need to evolve to know for sure. 2026-10-28 Weapons of mass destruction now include chemical, hypersonic and cyber threats. Like any weapon, cyberattacks can cripple nations, threatening society's survival. 2026-10-28 Despite bans, dangerous chemical weapons are still used by certain regimes. Explore how these weapons are used and how they can possibly contribute to the threat of future biological warfare. 2026-10-28 Directed energy weapons, once only seen in science fiction, are now reality. They can disable cities' circuits and destroy missiles, heralding space warfare. 2026-10-28 Electronic warfare, drones and AI-driven soldiers define modern combat. Learn more about the digitized battlefield with enhanced soldiers, killer robots and lethal autonomous weapons. 2026-10-28 Originally for reconnaissance, drones now carry missiles and bombs; the Reaper, a hunter-killer, exemplifies advanced tech and our path towards AI; exploring unmanned warfare. 2026-10-28 A deadly explosion strikes at the heart of a small Texas town and leaves a community in ruins; experts use the latest science to investigate and uncover a nearby fertilizer plant containing volatile chemicals poised for disaster. 2026-10-28 Catastrophe strikes Miami, Fla., as a 13-story condominium tower collapses with deadly debris; experts use the latest science to investigate and uncover an uncontrolled method of demolition that led to catastrophic failure. 2026-10-28 A devastating earthquake wreaks havoc on an iconic San Francisco bridge and leaves drivers fearing for their lives; experts use the latest science to investigate and uncover a weakened expansion joint caused by catastrophic shockwaves. 2026-10-28 New York residents get a rude awakening when a disastrous crane collapse causes chaos on the downtown streets of Manhattan; experts use the latest tech to investigate and reveal how a slight increase in wind conditions created major catastrophe. 2026-10-29