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.
Ask An Astronomer: Falling Moon
Watch this NASA "Ask an Astronomer" video to see why the moon doesn't smash into the Earth. Since the moon is so far away from Earth and is moving so fast, it's actually always falling. It just never hits the earth and stays in a continuous orbit.
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.
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."
Assignment Discovery: Black Hole Formation
Theories suggest that when a neutron star is more than three times as heavy as our sun even the neutrons cannot resist gravity, imploding into a black hole. Learn more on Discovery Channel's "Assignment Discovery."
The Space Shuttle: Launch of Shuttle Discovery
On Discovery Channel's "The Space Shuttle: Countdown to Comeback," watch as the crew of the STS-114 gets the green light to launch. This was the first space shuttle flight since the Columbia crash.
The Space Shuttle: Repair Spacewalk
The purpose of the first spacewalk of this mission is to test heat shield repair materials and tools. Watch as the astronauts finally get to test their well practiced skills in space on Discovery Channel's "The Space Shuttle: Countdown to Comeback."
Assignment Discovery: Volcanoes in our Solar System
If you are looking for truly massive volcanoes, the selection we have on earth is nothing compared to what the solar system has to offer. Learn more in Discovery Channel's series, "Assignment Discovery."
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.