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Moon rocks look rather nondescript -- they are often gray in color -- but for NASA planetary scienti...
Chinese and Japanese scientists have discovered a "chemically peculiar" star in the Milky ...
In the beginning, more than 13 billion years ago, the Universe was an undifferentiated soup of three...
A new map of the night sky published Tuesday charts hundreds of thousands of previously unknown gala...
Stephen Hawking's final work, which tackles issues from the existence of God to the potential fo...
Scientists in South Africa on Friday launched the world's first optical telescope linked to a ra...
After detecting a whiff of oxygen, astronomers have determined that stars in a faraway galaxy formed...
For the first time, scientists have witnessed the cataclysmic crash of two ultra-dense neutron stars...
The Moon, long thought to be a dry, inhospitable orb, hosts surprisingly large sub-surface water res...
Two teams of astronomers said Thursday they have for the first time detected a key chemical building...