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Sun’s core rotates 4x faster than surface
Eureka! After decades of puzzling about whether the sun's core spins faster than its surface, astronomers can now measure it.
August 2, 2017
Lots of water inside the moon?
Researchers have detected widespread water within ancient volcanic deposits on the moon.
August 2, 2017
No Earth-like atmosphere for Proxima b
It's the nearest exoplanet and in its star's habitable zone. But a new study suggests radiation from its star would drain an Earth-like atmosphere 10,000 times faster than on Earth.
August 1, 2017
More life keys in Titan’s atmosphere
Scientists expand their knowledge of the stew of ingredients in the atmosphere of Saturn's large moon Titan, and contemplate whether Titan has cooked up life.
July 29, 2017
We are galaxy stuff
A new study - based on supercomputer simulations - reveals that each one of us may be made in part from matter that passes from one galaxy to another.
July 27, 2017
Watch launch of new ISS crew July 28
Live launch coverage from Kazakhstan begins at 10:45 a.m. EDT (14:45 UTC). You can also watch the spacecraft dock with the ISS, starting at 5:15 p.m. EDT (21:15 UTC).
July 26, 2017
Close shave from an undetected asteroid
Whoosh! Astronomers discovered a small asteroid - now designated as asteroid 2017 OO1 - on July 23. That was 3 days after it passed 1/3 the moon's distance from Earth.
July 25, 2017
How many distant comets?
Mysterious long-period comets might be more common - and bigger - than astronomers thought. Studies like this one will help reveal what kind of hazard they might pose.
July 25, 2017
Haze on Saturn’s horizon
Spectacular recent image from the Cassini spacecraft, now in its Grand Finale year around Saturn, taken from just above Saturn's cloudtops, showing haze on the planet's horizon.
July 25, 2017
Hubble sees Phobos orbiting Mars
This image and video aren't artists' illustrations. They're from a real time-lapse sequence of images - acquired by the Hubble Space Telescope - of the tiny moon Phobos orbiting Mars. Cool!
July 22, 2017
