Most extrasolar planets are about the size of Jupiter, not Earth. So, is Earth's size and orbit unique?
We found that lobsters and crayfish communicate by shooting streams of urine into each others' faces. Now, we look at urine signaling from the receiver's end.
The startling experience of five British monks from the twelfth century who saw an enormous explosion occur on the moon. The moon still be vibrating today.
It was a great moment in the history of NASA, especially since people had been working so long at trying to get a probe to Mars
How will future space explorers protect themselves against dangerous solar flares?
What is exogenesis? Is it possible that life on earth did not begin here... on earth?
Another space race? Probably not, but space programs around the world are making exciting plans for the moon.
Most of us picture astronauts bouncing gracefully on the moons surface, but what we don't see are the crash landings!
Learn how NASA scientists are taking homeland security into outer space.
Learn about stationary satellites on this Moment of Science.