To Santorum, the gun debate should be put on hold until the real issue is dealt with: single moms

The pictures from Mars are awesome, but what do they prove?

Science fiction struggles to keep up with the real universe

"Veronica Mars" fans invest in a movie that Warner Bros. stands to profit from — and that's just fine

Taxpayer money helped develop SpaceX components that will be used to send private citizens to space. Wait, what?

Our beloved teen-detective show leaves us bereft, signing off for good without even so much as a goodbye.

If they do, the condescending chorus chanting #WhiteLivesMatterToo might want to rethink their electoral strategy

The second man on the moon talks about everything from Neil Armstrong to movies and his favorite ice cream flavor

The rover's big task is to search for microbial life on Mars — and test an experimental Martian copter

The NASA-supplied audio also reveals what a breeze on Mars sounds like

Cagey commodity investors took notice when the president mentioned battery technology in his State of the Union address.

Republicans want tax cuts for the ultrarich instead of health care for the poor. But they won't tell the truth

A spacecraft scanning the red planet has found evidence for briny lakes beneath Mars' south pole

A robotics expert who helped build Curiosity tells the harrowing story of landing the rover on the Red Planet