One of the first visitors to Jupiter's icy moon of Europa could be a tiny submarine barely larger than two soda cans. The small craft might help stri...

Bothered by the pelting rain this hurricane season? Be thankful you don't live on Venus, where it seems to snow heavy metal! Scientists have never ...

Mysterious markings have been spotted on Martian sand dunes, but where did they come from? Planetary scientists now say that blocks of dry ice probabl...

A mysterious object lurking near the young star Oph IRS 48 could, along with observations of dust grains, change our understanding of planet formatio...

By: Mike Wall Published: 06/03/2013 03:09 PM EDT on SPACE.com The stars will align for planet hunters twice in the next three years, allowing them...

By Ken Croswell Was young Venus an Eden or a hell? Though the planet is closer to the sun than Earth is, our star was dimmer in those early years, ...

By: Denise Chow Published: 05/30/2013 02:06 PM EDT on SPACE.com Smooth, round pebbles found by NASA's Mars rover Curiosity provide more evidence t...

By: SPACE.com Staff Published: 05/24/2013 12:46 PM EDT on SPACE.com Small space rocks are carving fresh craters into the Martian surface more ofte...

By: Joe Rao Published: 05/24/2013 05:59 PM EDT on SPACE.com A trio of bright planets is shining together in the sunset sky, a must-see night sky s...

Could it be that our planet isn't typical at all? If so, then maybe life isn't typical either. On the other hand, if there are plenty of planets similar to Earth, we can reasonably hope for lots of cosmic company.

By Ken Croswell Saturn's rings are such a spectacle that you can see them through even a modest telescope. Made mostly of water ice, the rings conta...

By: Clara Moskowitz Published: 05/14/2013 06:21 AM EDT on SPACE.com Einstein's special relativity has proven more useful than ever, as scientists ...

What would Manhattan's iconic skyline look like if NYC were suddenly beamed to another planet? Seven fantastical illustrations by Pittsburgh-based art...

Calling all space poets! NASA is giving the public an opportunity to send a message to Mars aboard the Mars Atmosphere and Volatile Evolution space...

By: Mike Wall Published: 05/02/2013 02:08 PM EDT on SPACE.com Scientists searching for signs of life beyond our solar system should keep an open m...

By: Mike Wall Published: 05/01/2013 10:01 AM EDT on SPACE.com Health issues are jeopardizing the planet-hunting work of NASA's prolific Kepler spa...

CAPE CANAVERAL, Fla. -- NASA's Cassini spacecraft has captured stunning views of a monster hurricane at Saturn's North Pole. The eye of the cyclone i...

By: Charles Q. Choi, Astrobiology Magazine Published: 04/30/2013 07:54 AM EDT on SPACE.com Alien worlds resembling giant eyeballs might exist arou...

By: Mike Wall Published: 04/08/2013 05:02 PM EDT on SPACE.com A strange green space rock hailed as perhaps the first meteorite ever discovered fro...

By: Mike Wall Published: 04/05/2013 04:19 PM EDT on SPACE.com The hundreds of volcanoes on Jupiter's moon Io aren't where they're supposed to be, ...

Scientists have spotted new activity on Mars -- but it's not extraterrestrial life. Instead, NASA's Mars Reconnaissance Orbiter has sent back imag...

By: Miriam Kramer Published: 03/29/2013 10:54 AM EDT on SPACE.com Scientists may have discovered the first meteorite from Mercury. The green rock...

By: Staff, SPACE.com Published: 03/29/2013 12:22 PM EDT on SPACE.com The dazzling rings of Saturn and its moons are likely more than 4 billion yea...

By: Miriam Kramer Published: 03/28/2013 02:18 PM EDT on SPACE.com THE WOODLANDS, Texas — The equator of Jupiter's icy moon Europa may be covered ...