For over 50 years NASA has explored some of the deepest riches in space, find out how space probes like Cassini are able to send its findings to Earth!
Ever wonder how an astronaut lives in space? These astronauts show you what it takes to deal with the number one and number two problems in space, using the bathroom.
An alien spacecraft might not rely solely on sunlight to power its trajectory. Find out what other energy technology aliens could use to travel through the universe.
Bizarre creatures called "extremophiles" are found in some of Earth's most toxic and intense environmnents. How can studying these life forms help us understand alien life?
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?
Author Nick Sagan hasn't seen his godfather, Frank Drake, in over 30 years. We capture their reunion - and find out how Drake became friends with Nick's famous father, Carl Sagan, in this exclusive clip.
Take a look at the kinds of protective shelters we'd need in order to live on Mars' surface. Here's a hint: the shelters are more stone age than space age.