Supermassive black hole set a record for longest lunch ever
The feeding frenzy enriches our understanding of the universe.
Magnetic fields could explain an 'erratic' neutron star
Scientists have a theory for Rapid Burster's unusual X-ray blasts.
Rare red nova explosion could add a star to the sky in 2022
A Calvin College astronomer has predicted the stellar event is just a few years away.
Astronomers have found the roundest object in the universe
The star, Kepler 11145123, is the closest celestial body to a perfect sphere we've ever observed.
President Obama calls for a plan to deal with extreme space weather
The risk is more real than you might think.
Astronomers scan for disappearing stars
They're hopeful that this will be a hint of intelligent alien life, but it could also offer insight into quasars.
Listen to the sounds of the Milky Way galaxy's oldest stars
Scientists have created 'music' from the oscillations of stars 13 billion years old.
Unique white dwarf will help clarify what happens to dying stars
With an atmosphere made of oxygen, it's the first of its kind. And a mystery.
Hubble shows some of the galaxy's biggest, brightest stars
Some are so intense that they'll go supernova within a few million years.