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

A mysterious object is orbiting Saturn, and it looks just like the Death Star; new evidence might shed new light on the mysterious death of Yuri Gagarin, the first man in space; when a cutting-edge satellite vanishes, fears of a space war escalate.

NASA's Unexplained Files

Saturn's Death Star

When the Soviet Union unveils its own space shuttle, the CIA hatches a secret revenge plot; recent discoveries shed new light on the destruction of Sodom and Gomorrah; a missing nuclear weapon could threaten a NASA base in the Arctic.

CIA's Secret Revenge

An astronomer records an unusual radio signal from beyond the solar system; FBI agents find classified documents at the home of a NASA scientist; when scientists discover strange DNA in the octopus, they examine if their origins could be alien.

Secret Aliens

A photograph depicts two suns in the sky over Indonesia; ghostly white swirls on the moon's surface baffle NASA scientists; an astronaut disappears during his return to Earth.

The Sun's Evil Twin

Scientists wonder why Jupiter is hotter than it should be; the Curiosity Rover finds something strange on Mars; detectives turn to NASA for help with a murder cold case.

Curse of the Gas Giant

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