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7 Earth-sized worlds? What we really see
A reality check from astrophysicist Brian Koberlein on what we actually see of the 7 recently discovered Earth-sized planets orbiting the star TRAPPIST-1.
March 21, 2017
Fizzy lakes for Saturn’s moon Titan?
Bright features - informally known as "magic islands" - seem to appear and disappear in a Titan sea. A new study shows that bubbles could, potentially, be the cause.
March 20, 2017
Bodies freed from gravity’s grip
Life on Earth is used to gravity. So what happens to our cells and tissues in space?
March 17, 2017
Where was dark matter in the early universe?
Surprising new observations of distant galaxies suggest that dark matter was less influential in the early universe than it is today.
March 17, 2017
Celestial spiral is a double star
It's not a spiral galaxy. It's a double star system seen from Earth to create a spiral shape in a shell of gas.
March 16, 2017
Closest-yet star to black hole
Astronomers have found a star that whips around a black hole about twice an hour. That's a very close orbit, possibly the tightest orbital dance ever witnessed for a star and black hole.
March 15, 2017
Back-to-back Mars dust storms
In the past few weeks, the Mars Reconnaissance Orbiter has reported 2 dust storms that sprang up in Mars northern hemisphere, then blew up to continent-size upon shifting southward.
March 14, 2017
Moon shadow path in 2017 solar eclipse
Fly along with the moon’s shadow in this NASA video depicting the path of the August 21, 2017 total eclipse of the sun.
March 14, 2017
When galaxies collide, black holes eat
When our Milky Way galaxy and neighboring Andromeda galaxy collide, supermassive black holes will have a feast!
March 12, 2017
Cassini shows strange Saturn moon Pan
Wonderful Cassini spacecraft - now in its final year orbiting Saturn - shows us a tiny, walnut-shaped shepherding moon.
March 12, 2017
