The ripples suggest that the lake was free of ice at one point.

So, if astrobiologists ever do find alien life with a weird chemistry that uses some liquid other than water, it's not likely ...

As expected, the billionaire astronaut—and likely future administrator of NASA—is focused on Mars and the private sector.

"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

I take apart my Mclaren 675LT and realize that it wasn't the "easy fix" that many before me thought it was. Well, I knew that ...

Daichi Fujii from the Hiratsuka City Museum in Japan captured a meteor impact the moon with multiple telescopes. Credit: ...