Killers of the Cosmos
When a massive star dies, it can direct a blast of radiation that could obliterate all life.
2026-06-29 08:04:00 +0000 UTC→2026-06-29 08:52:00 +0000 UTC(48m)
Schedule for Space & Beyond
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UFOs: The Lost Evidence
Researchers investigate what really happened during encounters between police and UFOs.
2026-06-29 18:30:00 +0000 UTC→2026-06-29 19:18:00 +0000 UTC(48m)
UFOs: The Lost Evidence
Evidence reveals the development of Nazi weapons not long after an alleged UFO crash.
2026-06-29 17:42:00 +0000 UTC→2026-06-29 18:30:00 +0000 UTC(48m)
UFOs: The Lost Evidence
UFO sightings by pilot and astronaut experts are far more common than we're lead to believe.
2026-06-29 16:54:00 +0000 UTC→2026-06-29 17:42:00 +0000 UTC(48m)
UFOs: The Lost Evidence
Investigating whether deathbed confessions provide real evidence of the existence of UFOs.
2026-06-29 16:06:00 +0000 UTC→2026-06-29 16:54:00 +0000 UTC(48m)
UFOs: The Lost Evidence
New evidence pointing to the possibility that ancient man was visited by extraterrestrials.
2026-06-29 15:18:00 +0000 UTC→2026-06-29 16:06:00 +0000 UTC(48m)
UFOs: The Lost Evidence
From the lore and history of ancient Egypt, to the myths of Native Americans, and even the art of the Renaissance period, mankind's past is riddled with the evidence of UFOs.
2026-06-29 14:30:00 +0000 UTC→2026-06-29 15:18:00 +0000 UTC(48m)
UFOs: The Lost Evidence
The ultra top-secret military base in the remote deserts of Utah known as Area 52.
2026-06-29 13:41:00 +0000 UTC→2026-06-29 14:30:00 +0000 UTC(49m)
UFOs: The Lost Evidence
Newly declassified documents are leading UFO researchers to believe UFOs may inhabit our oceans.
2026-06-29 12:51:00 +0000 UTC→2026-06-29 13:41:00 +0000 UTC(50m)
Return to the Moon: Seconds to Arrival
Engineers count down the final moments of a milestone in space travel.
2026-06-29 12:04:00 +0000 UTC→2026-06-29 12:51:00 +0000 UTC(47m)
The Planets and Beyond
Exploring dwarf planets, home to some of the universe's biggest secrets.
2026-06-29 11:16:00 +0000 UTC→2026-06-29 12:04:00 +0000 UTC(48m)
The Planets and Beyond
Astronaut Mike Massimino uncovers the strange secrets of Earth's solar system.
2026-06-29 10:28:00 +0000 UTC→2026-06-29 11:16:00 +0000 UTC(48m)
The Planets and Beyond
Astronaut Mike Massimino explores Mercury, a deadly and tiny planet that faces constant attacks.
2026-06-29 09:40:00 +0000 UTC→2026-06-29 10:28:00 +0000 UTC(48m)
The Planets and Beyond
Journeying to Uranus and Neptune, the farthest planets from the sun.
2026-06-29 08:52:00 +0000 UTC→2026-06-29 09:40:00 +0000 UTC(48m)
Killers of the Cosmos
When a massive star dies, it can direct a blast of radiation that could obliterate all life.
2026-06-29 08:04:00 +0000 UTC→2026-06-29 08:52:00 +0000 UTC(48m)
Killers of the Cosmos
Millions of black holes exist and some of them have the potential to be lethal to earth.
2026-06-29 07:16:00 +0000 UTC→2026-06-29 08:04:00 +0000 UTC(48m)
Killers of the Cosmos
More than 100 million pieces of small space debris are floating around the Earth.
2026-06-29 06:28:00 +0000 UTC→2026-06-29 07:16:00 +0000 UTC(48m)
Killers of the Cosmos
Earth is hit by 100 tons of rock from space every day; most burn up in the atmosphere.
2026-06-29 05:40:00 +0000 UTC→2026-06-29 06:28:00 +0000 UTC(48m)
Killers of the Cosmos
A team of experts investigates extra-terrestrial beings and their threat to human life.
2026-06-29 04:52:00 +0000 UTC→2026-06-29 05:40:00 +0000 UTC(48m)
NASA's Unexplained Files
After Neil Armstrong's moonwalk, he leads an expedition into the Amazon to find a legendary library.
2026-06-29 04:04:00 +0000 UTC→2026-06-29 04:52:00 +0000 UTC(48m)
NASA's Unexplained Files
A discovery by NASA's Mars Curiosity rover reveals a possible war occurred 300 million years ago.
2026-06-29 03:16:00 +0000 UTC→2026-06-29 04:04:00 +0000 UTC(48m)
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