How the Universe Works
Time travel may be more possible now than ever imagined; experts are closer to discovering how.
2026-06-20 02:40:00 +0000 UTC→2026-06-20 03:28:00 +0000 UTC(48m)
Schedule for Space & Beyond
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What on Earth?
Evidence of human sacrifice for the Viking god Odin; shedding new light on Genghis Khan.
2026-06-23 04:52:00 +0000 UTC→2026-06-23 05:40:00 +0000 UTC(48m)
What on Earth?
An abandoned megacity might be home of ancient treasure; investigating Round Table of King Arthur.
2026-06-23 04:04:00 +0000 UTC→2026-06-23 04:52:00 +0000 UTC(48m)
What on Earth?
A lost city near Jerusalem might have been the home of Goliath; bizarre underwater formations.
2026-06-23 03:16:00 +0000 UTC→2026-06-23 04:04:00 +0000 UTC(48m)
What on Earth?
A lake in Transylvania is home of a terrifying secret; a labyrinth is discovered on a Greek island.
2026-06-23 02:28:00 +0000 UTC→2026-06-23 03:16:00 +0000 UTC(48m)
What on Earth?
A forbidden island that was the home of Adolf Hitler; sunken continent in the Indian Ocean.
2026-06-23 01:40:00 +0000 UTC→2026-06-23 02:28:00 +0000 UTC(48m)
What on Earth?
Home of an undiscovered Hobbit-like humanoid species; government experiments into psycho warfare.
2026-06-23 00:52:00 +0000 UTC→2026-06-23 01:40:00 +0000 UTC(48m)
What on Earth?
Ghost town emerges from a lake in Argentina; scientists explore a lost jungle; giant Soviet weapon.
2026-06-23 00:02:00 +0000 UTC→2026-06-23 00:52:00 +0000 UTC(50m)
What on Earth?
A ghost ship with links to the mob; plot to overthrow Queen of England; lake with healing powers.
2026-06-22 23:14:00 +0000 UTC→2026-06-23 00:02:00 +0000 UTC(48m)
What on Earth?
A strange structure shaped like a giant shark; something unexpected in eye of hurricane.
2026-06-22 22:26:00 +0000 UTC→2026-06-22 23:14:00 +0000 UTC(48m)
What on Earth?
Strange mounds in Transylvania might lead to the tomb of the inspiration for Dracula.
2026-06-22 21:38:00 +0000 UTC→2026-06-22 22:26:00 +0000 UTC(48m)
Great American Eclipse
Images of the first total solar eclipse in the continental United States in 99 years.
2026-06-22 20:49:00 +0000 UTC→2026-06-22 21:38:00 +0000 UTC(49m)
Apollo: The Forgotten Films
The story of the Apollo 11 moon landing is told with footage not seen anywhere else.
2026-06-22 19:12:00 +0000 UTC→2026-06-22 20:49:00 +0000 UTC(1h37m)
Confessions From Space: Apollo
The Moon Landing's 50th Anniversary with Astronauts at the Explorer's Club.
2026-06-22 18:24:00 +0000 UTC→2026-06-22 19:12:00 +0000 UTC(48m)
UFOs: The Lost Evidence
A look at whether the desire for gold is the result of extraterrestrial landings in the past.
2026-06-22 17:36:00 +0000 UTC→2026-06-22 18:24:00 +0000 UTC(48m)
UFOs: The Lost Evidence
New evidence and modern-day UFO sightings have experts rethinking Native American myths.
2026-06-22 16:48:00 +0000 UTC→2026-06-22 17:36:00 +0000 UTC(48m)
UFOs: The Lost Evidence
Evidence suggests contact with aliens may have influenced humankind and many of its sacred sites.
2026-06-22 16:00:00 +0000 UTC→2026-06-22 16:48:00 +0000 UTC(48m)
UFOs: The Lost Evidence
The Royal Air Force regularly encounters UFOs, but the British government denies the sightings.
2026-06-22 15:12:00 +0000 UTC→2026-06-22 16:00:00 +0000 UTC(48m)
UFOs: The Lost Evidence
The U.S. government continues to deny the existence of extraterrestrials.
2026-06-22 14:24:00 +0000 UTC→2026-06-22 15:12:00 +0000 UTC(48m)
UFOs: The Lost Evidence
Investigators reveal the secret history of U.S. presidents and UFOs.
2026-06-22 13:36:00 +0000 UTC→2026-06-22 14:24:00 +0000 UTC(48m)
UFOs: The Lost Evidence
An exploration into whether breakthroughs are the result of human efforts or contact with UFOs.
2026-06-22 12:48:00 +0000 UTC→2026-06-22 13:36:00 +0000 UTC(48m)
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