Moon Rock Study
From the archives of Discovery: When NASA astronauts return with moon rocks, teams of scientists run the rocks through a battery of tests to analyze their properties. Learn more about NASA and moon rocks in this video.
Space School: Mysterious Objects
Far beyond Earth in the endless expanses of space, mysterious objects are hiding. Learn more about black holes, quasars and dark matter in this clip from the Science Channel's "Space School."
Spaced Out: Sex in Space
Did NASA ever conduct sex experiments in space? Is it even possible to have sex in space? Find out in this humorous video from the Discovery Channel's "Spaced Out."
Planet Storm: Jupiter Probed
On Discovery Channel's "Planet Storm," learn about the Jupiter probe sent by the Galileo mission in order to study the conditions on the surface of Jupiter.
Space Station Parts
Watch this video about the International Space Station on HowStuffWorks. NASA Connect segment explaining each components of the International Space Station and how these parts work together. See how the International Space Station works in this video from NASA.
Learn about radio telescopes and how they help shape our understanding of the universe.
Space School: Stars
Stars appear to be nothing more than shimmering dots in the night sky. But a closer look reveals that powerful nuclear reactions fuel these twinkling objects. Learn more in this video from the Science Channel's "Space School."
Spacewalkers: The Vomit Comet
In order to train for spacewalks, astronauts are put through vigorous training. One of the tasks is surviving a ride on the KC-135 Stratotanker or the Vomit Comet. Learn more on Discovery Channel's "Spacewalkers: The Ultimate High-Wire Act."
Coming Home From Space: Space Shuttle's S Turns
At around 300,000 feet the space shuttle transitions to an airplane as it begins the descent to Earth. To slow down, the shuttle performs S-turns by banking one way and then the other. Learn more on Discovery Channel's "Coming Home From Space."
NASA's Unexplained Files: Something Out There
James McDivitt, a NASA astronaut and engineer in the 1960's, reported he saw and filmed a strange object in space. Is there a logical explanation or was there really something out there?
NASA's Unexplained Files: The Condon Report
The U.S. Air Force created the Condon Report in 1968 to address supposed UFO sightings. The report stated that "further extensive study of UFO's probably cannot be justified" and is seen by some as an attempted cover up.
Oddities: Cow-Eyed Flower
Now 100 years old, the John Carter stories have inspired characters real and fictional. Martin Berman looks into what makes a Sci-fi classic.
Oddities: Get to the Point
2012 has seen some of the highest levels of solar activity ever recorded. But what can solar storms do to you? Daron Taylor takes a look at what these intense geomagnetic storms mean.
Oddities: Yearning for a Gurney
SETI Institute is Earth's "welcome mat" for extra-terrestrial intelligence, where dozens of scientists are examining signals from space, and exploring our evolutionary history to find out if life could have happened elsewhere in the universe.
Oddities: A Heady Bargain
Since launching in 2009, the Kepler program has detected hundreds of previously unknown planets. How many of them are Earth-like, and what does that mean for the probability of intelligent life beyond our solar system?
Space: Massive Northern and Southern Lights Explained
Thanks to the largest solar radiation storm since 2003, beautiful aurorae have been popping up across the globe. Martin Berman talks to Discovery News Space Producer Ian O'Neill to understand how the aurora borealis and australis are created.
Dark Matters: Missing Cosmonauts
Two amateur radio hams listen in, recording broadcasts from early Russian launches into space. One day, they hear a heart-stopping sound. Someone tapping out a distress signal from space.