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Hidden ocean discovered on Saturn’s moon Enceladus
A large ocean under Enceladus' icy surface supplies the water that's been seen spraying out of the "tiger stripes" on its surface, suggests new research.
April 3, 2014
Mercury has a long history of exploding volcanoes
Throughout extended periods of its history, the surface of planet Mercury crackled with volcanic explosions, a new analysis suggests.
April 3, 2014
Mid-level solar flare April 2
Awesome image! A mid-level flare, an M6.5, erupted from the sun on April 2, 2014, peaking at 10:05 a.m. EDT.
April 2, 2014
New image: Two contrasting galaxies
A new image shows two galaxies, close to each other in space, but with very different histories - small spiral NGC 1317 and the large battle-scarred NGC 1316.
April 2, 2014
Mars opposition happens this month: It’s really easy to see
Earth and Mars are converging for a beautiful close encounter in April, an event astronomers call "the opposition of Mars."
April 2, 2014
Aurora alert for April 1 and 2
The first of three sets of solar particles are now en route to Earth and are expected to deliver glancing blows to Earth beginning April 1 and into April 2.
April 1, 2014
Rosetta sets sights on destination comet
The Rosetta spacecraft has caught its first glimpse of comet 67P/Churyumov–Gerasimenko since waking up from deep-space hibernation in January.
March 28, 2014
Comet Siding Spring barrels toward sun, sprouts multiple jets
On October 19, 2014, Comet C/2013 A1 Siding Spring will sweep closer to Mars than our moon is to Earth. Dust shed by the comet could endanger spacecraft orbiting Mars.
March 28, 2014
Miss the moon and Venus this morning? Photos here
Photos from friends around the world of the March 27 and March 28 pairing of the moon with Venus. Thank you, everyone, for posting!
March 27, 2014
Theory suggests source of white dwarf pollution … and ominous fate for Earth
A new theory, advanced to explain how the atmospheres of collapsed stars become polluted, points to ominous fate awaiting planet Earth.
March 26, 2014
