The strange behavior of hypervelocity stars suggests a nearby dwarf galaxy must contain a supermassive black hole. If so, a ...

"These two supernova remnants are helping us to better understand the dynamics of our home galaxy’s neighborhood," ...

The cosmic superstructure Quipu is more than 13,000 times the length of the Milky Way, and its mass is 200 quadrillion times ...

Astronomers at the NASA Goddard Space Flight Center may have discovered a star hurtling through the Milky Way with a planet ...

Two NASA astronauts, stranded at the International Space Station since June, could return to Earth weeks earlier than ...

NASA's Pandora satellite mission to document at least 20 known planets orbiting distant stars will start from SpaceX at its ...

Blue stragglers, formed from the merger of two old red stars, shine with greater mass and a bluer hue, a theory confirmed by ...

These are known as hypervelocity stars, with some moving faster than the escape velocity of the Milky Way of around 600 kilometers (373 miles) per second. There is another star that is almost as ...

With a length of 428 megaparsecs, or around 1.39 billion light-years, the superstructure is the biggest ever spotted.

NASA scientists have made a groundbreaking discovery that could change how we understand the dynamics of exoplanetary systems ...

Quipu, Hercules, Serpens–Corona Borealis and Sculptor–Pegasus are all larger than the fifth and final superstructure ...

A potential record-breaking exoplanet system, traveling at 1.2M mph, may be the first of its kind ever identified.