Mars rover Curiosity discovers crater that was once an ancient lake that could have sustained microbial life.
During a House Science Committee hearing on astrobiology, three leading experts petitioned the government to continue funding SETI and talked about the potential of extraterrestrial life.
Astronomers have discovered an odd lonely planet floating in the cosmos without a star to orbit.
Extracted organic molecules from a meteorite make scientists do a double take about the possible origin of life.
Ancient Mars may have once contained more of a basic ingredient for life than Earth.
The U.S. government officially releases documents that not only acknowledge Area 51, but also give details about its purpose.
The international body charged with helping to establish names for new planets has decided to open up the process to the public.
The first aliens could be little red plants, not little green men.
We're not saying that a Martian Jurassic Park could be in our future. But seriously: Martian Jurassic Park.
Gliese 667 has three stars and three potentially habitable worlds. Our solar system has just been trumped.