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Astronomy

This Just In
Sep 27, 2014 10:50 AM ET // Joe Rao, SPACE.com Skywatching Columnist
Autumn is under way in the Northern Hemisphere, and if you are an avid sky gazer you just might have noticed signs of the season's change.
Sep 23, 2014 06:00 AM ET // Ian O'Neill
Some young sun-like stars generate an odd infrared signal that is likely caused by interactions with neighboring stars, producing powerful stellar winds. Continue reading →
Sep 22, 2014 10:06 AM ET // Ian O'Neill
The likelihood that a South Pole-based telescope detected elusive gravitational waves earlier this year has just taken another nosedive. Continue reading →
Sep 22, 2014 06:30 AM ET // Geoff Gaherty, Starry Night Education
Even though Mercury is one of the brightest objects in the sky, very few observers have ever seen the planet in the night sky. That's because it never strays very far from the sun, and is usually lost in its glare.
Sep 17, 2014 01:00 PM ET // Irene Klotz
A surprisingly massive black hole has been discovered in the core of a small, compact galaxy -- a finding that appears to be a weird cosmic contradiction.
Sep 16, 2014 07:00 AM ET // Joe Rao, SPACE.com Skywatching Columnist
On these late-summer evenings after the sun has set, look low in the southern sky for the classical Archer: the constellation Sagittarius.
Sep 11, 2014 09:00 AM ET // Ian O'Neill
Space weather forecasters have confirmed that Wednesday's solar flare also generated a coronal mass ejection that's now racing toward Earth. This is the second Earth-directed CME in two days. Continue reading →
Sep 10, 2014 09:02 PM ET // Ian O'Neill
At 1:46 p.m. ET (17:46 UT) on Wednesday, the sun reminded the solar system that it hasn't finished with solar maximum quite yet -- it unleashed a powerful solar flare and aimed it right at Earth. Continue reading →
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