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An ancient magnetic field on Mercury
Near the end of its mission, the MESSENGER spacecraft revealed Mercury's magnetic field to be at least 3.7 to 3.9 billion years old, or older.
May 12, 2015
Gargantuan gas halo around Andromeda galaxy
A dark halo of gas that envelopes our neighboring Andromeda galaxy is 1,000 times more massive than previously measured and stretches halfway to the Milky Way.
May 12, 2015
Closest look yet at Ceres’ bright spots
Mysterious Spot 5 - most prominent of Ceres' bright spots - is shown to consist of many smaller spots in a new image from the orbiting Dawn spacecraft.
May 11, 2015
Amazing timelapse of volcanic sunset in Zimbabwe
Last night's sunset in Zimbabwe - May 10, 2015 - made spectacular by volcanic aerosols carried across the Atlantic from Chile's Calbuco volcano.
May 11, 2015
Proposal to find and zap space debris
Tiny debris particles cause wear and tear on active satellites. A team wants to find it and zap it with a laser to cause its fall back into Earth's atmosphere.
May 11, 2015
Faster-than-light travel: Are we there yet?
There's a cosmic speed limit that unfortunately means we won't be firing up warp drive anytime soon.
May 11, 2015
You are there! Sunset on Mars
A beautiful new timelapse showing sunset on Mars in mid-April, 2015, from the Mars Curiosity rover.
May 10, 2015
Geysers on Enceladus: Curtains not jets
Researchers thought Saturn's moon Enceladus had jet-like geysers. But the jets may be optical illusions, caused by looking through a "fold" in curtain-like geysers.
May 9, 2015
Asteroids and comets seed exoplanets with water
Earth's water likely came from asteroids and/or comets. New research suggests that small bodies in distant solar systems carry water to their planets, too.
May 9, 2015
