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Astronomers find dozens of runaway stars
As water piles up before a ship, so material stacks up ahead of high-mass stars moving fast through space. These cosmic bows shocks revealed the runaway stars.
January 6, 2016
Ancient life in globular star clusters?
Astronomers have said globular clusters might not foster planets, and only one such planet is known. Here are new arguments on why they might exist, after all.
January 6, 2016
Andromeda galaxy in high-energy X-rays
A space mission turned its X-ray vision on the Andromeda galaxy and spotted 40 X-ray binaries, exotic objects thought to play a role in our universe's evolution.
January 5, 2016
Quarter moon, Earth perihelion, neap tide
The last quarter moon combined with Earth at perihelion should usher in a gentle neap tide, with little variation between high and low tide over the next few days.
January 2, 2016
After 8 years, Dawn probe brings Ceres into closest focus
Dawn spacecraft now in its closest orbit of dwarf world Ceres. Mission Director Marc Rayman explains how the mission will help unlock our solar system's secrets.
January 1, 2016
Curiosity’s 10 best images of Mars in 2015
As of December, 2015, Curiosity has acquired over 292,000 images from Mars' surface. Here are our picks for the top 10 images by the rover in 2015.
December 30, 2015
Dark skies disappearing
Earth's night skies are lighter, thanks to towns, cities and industrial complexes. How that affects astronomy ... as well as birds, insects and people.
December 28, 2015
Magnetic fields dragged and twisted by young star’s dusty disk
These disks contain the raw materials for planet formation. The magnetic fields can either help or hinder their growth. So this new research helps show how solar systems are born.
December 27, 2015
Sneaking a peek inside a black hole’s disk
Amazing new image - obtained via an orbiting X-ray observatory - shows the disk of gas and dust surrounding a supermassive black hole to be clumpy, not smooth.
December 24, 2015
How big can black holes grow?
Black holes could grow as large as 50 billion suns, before the 'food' that makes them grow crumbles into stars, says new research.
December 24, 2015
