From the smallest cell to the solar system, Science HD is an odyssey of scientific facts, investigations and breakthroughs.

Science HD

From the smallest cell to the solar system, Science is an odyssey of scientific facts, investigations and breakthroughs.

Science

Spaceships powered by atomic bombs; artificial rings encircle an entire star; Neil Armstrong's transmission feed cuts off when he spots strange lights on the moon; how can lightning talk to itself.

NASA's Unexplained Files

Ghosts on the Moon

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A distant planet shows an Earth-like atmosphere; a glowing light suggests an atmosphere on the Moon; why there are blueberries on Mars.

Interstellar Gold Rush

A piece of the sun seems to have vanished; the Hubble spots an unidentified object traveling faster than light.

Black Knight Rises

Life may have been found on Mars; mysterious Moon Pigeons.

Alien Death Ray

An attempt to explain some of the odd shapes and lights that have been captured on NASA's cameras.

Answers to questions about the power of atomic bombs, artificial rings, Neil Armstrong's transmission on the moon and lightning.

The Aristarchus Enigma & Martian Space Station

A NASA astronaut reports seeing a flying saucer in the skies above a U.S. Air Force test range; the swirling gases of Saturn form a perfect hexagon that has hovered above the planet's pole for 30 years.

US UFO & The Saturn Mega Hex

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S1 E6 | Ghosts on the Moon

E6 | Ghosts on the Moon

E5 | Interstellar Gold Rush

E4 | Black Knight Rises

E3 | Alien Death Ray

E1 | NASA's Unexplained Files

The Aristarchus Enigma & Martian Space Station

US UFO & The Saturn Mega Hex