Astronomers have discovered an out-of-place supermassive black hole -- 12 billion times more massive than the sun -- that inexplicably formed when the universe was less than 900 million years old.
Amateur astronomers gazing at Mars discovered gigantic plumes soaring more than 125 miles above the planet’s surface, a phenomenon that so far defies explanation.
Most of us kind of get that the Earth is spinning and lots of other stuff out there is doing the same. Fair enough, but ... WHY?
The intrepid eye on the sky could continue functioning through 2020, and even beyond, say scientists.
A new three dimensional model of the Cassiopeia A supernova remnant provides insights into how these massive explosions occur.
A recent asteroid flyby might freak some of us out a little bit, even though it was no danger to Earth. It turns out that kind of thing happens all the time.
Ceres is an embryonic planet that had the misfortune of seeing Jupiter crush its dreams of becoming a legit planet on its own. But the more scientists learn about the plucky dwarf, the more they like it.
On Friday night, observers all across North America will witness a rare event (weather permitting).
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