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How the moon got its sunburn
Every object, planet or person traveling through space has to contend with the sun's damaging radiation - and the moon has the scars to prove it.
March 7, 2019
Watch SpaceX Crew Dragon splashdown March 8
The SpaceX Crew Dragon spaceship will leave the International Space Station and splash down in the Atlantic Ocean on Friday, March 8, 2019. How to watch both events live.
March 7, 2019
Black hole found near Milky Way’s heart
It's not supermassive, but only an intermediate-mass black hole, near the center of the Milky Way. It might be one of over 100 million quiet black holes lurking unseen in our galaxy.
March 6, 2019
Asteroids are harder to destroy than we thought
What if we learned an asteroid was headed toward Earth? How much energy does it take to destroy an asteroid and break it into pieces? More than we thought, it turns out.
March 4, 2019
An ancient white dwarf star with rings
"This white dwarf is so old that whatever process is feeding material into its rings must operate on billion-year timescales," said one of the scientists involved in the discovery.
March 4, 2019
Planet 9 hypothesis gets a boost
A large, unknown Planet 9 in our solar system continues to elude astronomers. But a new review article in Physics Reports explains why some scientists still think they'll find it.
March 3, 2019
Hubble solves puzzle of Neptune mystery moon
Meet Hippocamp, the smallest known moon of the planet Neptune. Scientists have puzzled over its origin, and over why we see it orbiting where we do. Now, new Hubble data has shed light on these mysteries.
March 2, 2019
Ceres had meltwater reservoirs for millions of years
Life on Ceres, largest body in the asteroid belt? Maybe, at one time. New research points to ancient subsurface reservoirs of salty meltwater that might have lasted millions of years and let life's chemistry begin.
February 28, 2019
Touchdown marks on asteroid Ryugu
A new image from Japan's Hayabusa-2 spacecraft reveals a large, dark, irregular spot where the craft landed on asteroid Ryugu's surface last week.
February 26, 2019
New NASA consortium to study how life began
How did life originate on Earth and, possibly, other worlds in space? A new NASA consortium has the goal of probing one of nature's most perplexing mysteries.
February 26, 2019
