Watch a year in space 123Movies. Follow astronaut Scott Kelly's 12-month mission on the International Space Station, from launch to landing, as NASA charts the effects of long-duration spaceflight by comparing him to his identical twin on Earth, astronaut Mark Kelly.
01990HD
In 1977, two scientific research satellites, Voyagers I and II, were sent into orbit to travel to the farthest reaches of the solar system. This...
5.92012HD
50 years after launching our dreams into space, we’re left with a troubling legacy: a growing ring of orbiting debris that threatens the safety...
82017HD
After decades of amazing discoveries, spacecraft Cassini embarks on its final - and most daring - mission: a dive below Saturn's rings.
5.52013HD
02017HD
In this video, you can hear their stories in their own words. David Hartman hosts a Salute to the Apollo Program featuring astronauts Walt...
6.82020HD
Black holes stand at the limit of what we can know. To explore that edge of knowledge, the Event Horizon Telescope links observatories across the...
5.72022HD
A mind-bending, thrilling journey exploring the fragility and wonder of planet Earth, one of the most peculiar, unique places in the entire universe,...
02014HD
Earthquakes, tsunamis, volcanic eruptions, and extreme weather. Has Earth always been this way? Featuring footage of top geologic hot spots on every...
62014HD
Professor Alice Roberts joins entomologist Tim Cockerill in a house filled with hundreds of spiders in a one-off documentary revealing the secret...
02012HD
Two parts documentary about the brain: "The Magic of the Unconscious" and "The Power of the Unconscious" "Your brain is a state-of-the-art marvel,...
6.72007HD
Four young Americans who've each suffered a Traumatic Brain Injury emerge from their comas at a New Jersey medical facility. Their eyes may be open,...
7.21994HD
Travel alongside the astronauts as they deploy and repair the Hubble Space Telescope, soar above Venus and Mars, and find proof of new planets and...