Super-Earths may have long-lasting oceans

Planets with two to four times the mass of Earth are even better at establishing and maintaining oceans than our Earth, according to new research.

Cool animation shows Venus in evening sky in 2015

Watch 238 days of the sky's brightest planet, Venus, now back in your evening sky. You can also see Mercury, Mars and Jupiter enter the scene at various points.

Amazing 44-second meteor might be space debris reentry

Video of an impressive and slow meteor seen over Puerto Rico on December 28. It might be a Falcon 9 rocket body falling from orbit.

Dawn spacecraft starts approach toward Ceres

The spacecraft will arrive at Ceres, a Texas-sized dwarf planet never before visited by a spacecraft, on March 6, 2015.

Tiny galaxy is Milky Way’s newly-discovered neighbor

A tiny, isolated dwarf galaxy almost 7 million light years away, with only one ten-thousandth of the mass of our Milky Way.

ISS astronauts send Christmas greetings to the world

Expedition 42 Commander Barry Wilmore and Flight Engineer Terry Virts send greetings and talk a little about their own Christmas Day in space.

Wonderful evening sky! Best moon and Venus photos

Showing once again that we all live under one sky ... the moon and Venus on December 22, 2014.

Comet Finlay is in outburst!

With a small 'scope or large binoculars, you can catch Comet Finlay. It'll be near Mars on December 23 and 24. Cool photo opportunity for those equipped to catch it!

Voyager spacecraft rides tsunami wave in interstellar space

Listen to how these waves cause surrounding ionized matter to ring like a bell. You’ve never heard anything from farther away ...

Questions of life on Mars revive with methane spike

Curiosity rover has now measured a dramatic spike in methane, an organic chemical, in the Martian air, plus other organic molecules in a Martian rock.