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Black hole flares from puzzling coronas?
A black hole may flare when its corona - a mysterious source of highly energetic particles - launches away from the hole at close to 20 percent of light speed.
October 30, 2015
Cassini flyby of Saturn moon Enceladus
Cassini has swept through the towering plume of ice, water vapor and organic molecules spewing from Saturn's moon, Enceladus. Seven key facts, here.
October 28, 2015
Watch spacewalk live October 28
Watch two NASA astronauts make their first spacewalk outside ISS today, beginning at 8:10 a.m. EDT (12:10 UTC) until about 2:40 p.m. EDT (18:10 UTC).
October 28, 2015
New Horizons aiming toward next target
On Sunday, the craft that explored Pluto successfully executed the 2nd of 4 maneuvers designed to aim it toward a small Kuiper Belt object called 2014 MU69.
October 27, 2015
Ice cores confirm colossal solar storms
Evidence that Earth was hit by two solar storms - 10 times larger than those observed recently - 1,000 years ago. If they occurred today, they'd have devastating effects on power supplies, satellites and communications.
October 27, 2015
SOHO’s thousands of doomed comets
SOHO - Solar and Heliospheric Observatory - is the greatest comet-discoverer of all time. It has found 3,000 comets ... but our sun has destroyed nearly all of them.
October 27, 2015
Kerberos images complete Pluto family portrait
Images of Pluto's tiny moon Kerberos recently downlinked from New Horizons spacecraft. We now have images of all five Pluto moons.
October 25, 2015
Milky Way photo with 46 billion pixels
It's the largest astronomical image of all time, used by astronomers in the search for distant exoplanets and multiple star systems.
October 25, 2015
New Hubble views of earliest galaxies
The largest sample yet of the faintest and earliest known galaxies in the universe, revealed by Hubble. Some formed just 600 million years after the Big Bang.
October 25, 2015
Astronomers find dead star destroying a planet
"This is something no human has seen before," said astronomer Andrew Vanderburg "We're watching a solar system being destroyed."
October 21, 2015
