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Hubble finds an Einstein ring
The arcs you see at the center of this Hubble Space Telescope image are created by the light of distant galaxies, distorted to form what's called an "Einstein ring."
April 11, 2018
Giant sun tornadoes aren’t spinning
Two-dimensional images of these solar prominences make them look as if they're spinning, and astronomers have long assumed they were. But new research says no.
April 9, 2018
Cosmic cold front older than solar system
Astronomers were surprised to discover an enormous “cold front” millions of light years in extent and older than the solar system.
April 9, 2018
Look up: It’s a satellite!
"I use the Heavens Above astronomy site or the Starry Night app to check on satellites ... they are fun to spot."
April 8, 2018
Astronomers find 72 bright and fast explosions
There and gone in a cosmological flash. Astronomers report on 72 bright, quick events found in a recent survey. They're like supernovae, but flash into view, then disappear again much faster.
April 7, 2018
Earth’s magnetosphere envelops and protects us
A giant bubble of magnetism protects us from the sun's fury. Take 3 minutes to learn about it, in this new NASA ScienceCast video.
April 6, 2018
Does space weather threaten high-tech life?
The wired Earth of the 21st century is at the mercy of the volatile nature of the sun, says a scientist who studies solar storms.
April 4, 2018
Astronomers spy most distant star yet
Astronomers call it Lensed Star 1 because gravitational microlensing magnified its light some 2,000 times. That's how they saw it shining from the distant past, only 4.4 billion years after the Big Bang.
April 3, 2018
Tiangong-1’s fiery death and ocean plunge
Tiangong-1's reentry was confirmed as April 2 at 00:16 UTC (April 1 at 8:16 p.m. EDT). Reentry occurred in the Pacific Ocean, northwest of Tahiti.
April 2, 2018
Astronomers ponder possible life adrift in Venus’ clouds
On Friday, astronomers announced a new paper laying out the case for the atmosphere of Venus as a possible niche for extraterrestrial microbial life.
March 31, 2018
