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Star lashes companion with mystery ray
Astronomers thought the star AR Scorpii was a lone variable star. Now they realize it's a dwarf star bombarding its companion with relativistic electrons.
August 2, 2016
Why no young stars at Milky Way center?
An international team of astronomers finds that that there's a large region around the center of our home galaxy that's devoid of young stars.
August 1, 2016
Emirates Mars Mission to launch in 2020
The Emirates Mars Mission - which carries the name Hope - will become the first-ever mission to the Red Planet by any Arab country.
August 1, 2016
Trio of solar flares
The sun emitted 3 mid-level solar flares on July 22-23, 2016. This is what NASA's Solar Dynamics Observatory saw.
July 27, 2016
Where are Ceres’ large craters?
There's a curious lack of big craters on the dwarf planet Ceres, largest body in the asteroid belt between Mars and Jupiter. Why?
July 26, 2016
New China telescope to search for aliens
A 1,600-foot (500-meter) dish called FAST - in southwest China - is now the world's largest radio telescope. It's expected to be fully operational in September.
July 26, 2016
Cloud study reveals Venus’ surface
Scientists had suspected that mountains on Venus affected weather patterns seen rippling across Venus' cloudtops. A new study provides evidence of this connection.
July 24, 2016
A year of Earth from a million miles
Watch a full year of Earth's sunlit side, seen from a million miles away by the DSCOVR spacecraft.
July 24, 2016
The X at the center of the Milky Way
Computer models, and observations of our galaxy and others, suggested a Milky Way X, made of stars. An analysis of data from the WISE space telescope reveals it.
July 22, 2016
Protoplanet blasted out Mare Imbrium
Mare Imbrium basin on the moon - the Man in the Moon's right eye - might have been made by a protoplanet-sized impact, 3.8 billion years ago.
July 20, 2016
