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Space-based particle detector hints at dark matter
A new and tantalizing hint of mysterious dark matter has been found by the Alpha Magnetic Spectrometer particle detector aboard the International Space Station.
September 19, 2014
Dawn spacecraft to Ceres recovers after malfunctions
A collision with a high-energy radiation particle may have corrupted software running in Dawn's main computer, and sent the spacecraft into safe mode.
September 18, 2014
Racing toward Pluto, spacecraft spies tiny moon Hydra
The New Horizons spacecraft - due to encounter Pluto in July 2015 - has spotted Pluto's small, faint, outermost known moon, called Hydra.
September 17, 2014
Merging galaxies can produce disk galaxies
Astronomers thought mergers formed giant elliptical galaxies. Now, for at least 24 observed galaxies, mergers have formed flattened, circular disks of dust and gas.
September 17, 2014
New catalog of visible Milky Way charts 219 million stars
Astronomers spent 10 years charting stars brighter than 20th magnitude – that's about 1 million times fainter than can be seen with the human eye.
September 16, 2014
ESA announces landing site on Rosetta’s comet
Rosetta spacecraft has been moving in tandem with its comet since August. On Monday, ESA announced the site of a November landing.
September 15, 2014
First evidence for water-ice clouds outside our solar system
The first evidence for water-ice clouds on an object beyond our solar system. It's a brown dwarf, one of our closest neighbors, only 7 light-years away.
September 12, 2014
Significant auroras predicted for tonight
Reports from NOAA and elsewhere predict a chance of significant auroras, possibly observable as far south as the northern U.S. and maybe even farther south.
September 12, 2014
Video: Jellyfish flame on the ISS
Fire in space doesn't act like fire here on Earth. Untethered by gravity, flames in space curl themselves into tiny balls.
September 11, 2014
Astronomers solve 20-year-old quasar mystery
New works suggests most observed quasar phenomena depend on two things: how efficiently a central black hole is being fed and the astronomer's viewing orientation.
September 11, 2014
