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Another Planet 9 search! You can help
This one will use images of the sky visible from Earth's Southern Hemisphere. You can help from anyplace on the globe. The search is for a 9th major planet in our system, nicknamed Planet 9.
March 27, 2017
Super halos around very young galaxies
Astronomers directly observed a pair of Milky-Way-like galaxies, seen when the universe was 8% of its current age. They were excited to find the young galaxies surrounded by huge halos.
March 26, 2017
New map of space dust in 3-D
Sure, we're all collections of space dust. But astronomers also want to study it in order to understand how space dust in our Milky Way obscures starlight from afar.
March 25, 2017
Does Mars sometimes have rings?
It's possible that Mars' closer moon - Phobos - might alternate between becoming a planetary ring and clumping together to form a moon.
March 23, 2017
Star’s death spiral into black hole
What happens when a star with about our sun's mass spirals into a black hole? With the distant event known as ASASSN-14li, astronomers have figured out some details.
March 22, 2017
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 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
