NASA thinks there's a way to get to Mars in three days

We've achieved amazing things by using chemical rockets to place satellites in orbit, land people on the moon, and place rovers on the surface of Mars. We've even used ion drives to reach destinations further afield in our ...

A Giant Trilobite on the Sun

"We've never seen anything quite like it," says solar physicist Lika Guhathakurta from NASA headquarters.

How would the world change if we found extraterrestrial life?

In 1938, Orson Welles narrated a radio broadcast of "War of the Worlds" as a series of simulated radio bulletins of what was happening in real time as Martians arrived on our home planet. The broadcast is widely remembered ...

Unknown alien rock found in Swedish quarry

A morsel of never-before-seen alien rock has been dug up in a limestone quarry in Sweden, where it had lain deeply buried for about 470 million years, scientists said Tuesday.

New water cycle on Mars discovered

Approximately every two Earth years, when it is summer on the southern hemisphere of Mars, a window opens: Only in this season can water vapor efficiently rise from the lower into the upper Martian atmosphere. There, winds ...

NASA camera catches moon 'photobombing' Earth

For only the second time in a year, a NASA camera aboard the Deep Space Climate Observatory (DSCOVR) satellite captured a view of the moon as it moved in front of the sunlit side of Earth.

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