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Mars Curiosity rover finds water in scoop of soil sample
The first scoop of soil analyzed in the belly of the Curiosity rover on Mars reveals that fine materials on the surface of the planet contain several percent water by weight.
September 27, 2013
Over 400 reports of large fireball over U.S. Midwest on September 26
People in Ohio, Illinois, Indiana, Kentucky, Missouri and Wisconsin saw it.
September 26, 2013
Astronomers find missing link pulsar
Newly discovered pulsar switches between emitting X-rays and emitting radio waves. It's the first direct evidence of one kind of pulsar turning into another.
September 26, 2013
Amateur astronomers see Comet ISON
"Certainly we would love it to be a couple of magnitudes brighter right now, but it's doing just fine. I'd say it's still on course to become a very eye-catching object." - Karl Battams, Naval Research Lab in Washington, D.C.
September 24, 2013
Astronomers discover densest galaxy ever
Imagine the distance between the sun and nearest star system, Alpha Centauri. That’s a distance of about 4 light-years. Now, imagine as many as 10,000 of our suns crammed into that relatively small space.
September 24, 2013
Best photos of Venus and Saturn after sunset
Venus and Saturn are in the same field of view of your binoculars from September 15 to 21. Look west after sunset. Plus ... check out these photos.
September 20, 2013
Video: The truth about Comet ISON
A longtime stargazer and astronomy editor tells you just what to expect from Comet ISON in late 2013. Will it sizzle, or fizzle?
September 17, 2013
It’s official: Voyager 1 first earthly craft to leave solar system
NASA says Voyager crossed the boundary of the heliosphere, or sphere of our sun's influence, a year ago.
September 12, 2013
Voyager 1 captures the sounds of interstellar space
Hear what deep space sounds like.
September 12, 2013
Best 3D map yet of central bulge of the Milky Way
Astronomers have found that our galaxy's inner regions take on a peanut-like, or X-shaped, appearance from some angles.
September 12, 2013
