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

The Milky Way can be seen as something of a bully, having devoured many smaller galaxies to achieve its vast mass, and ...

A research team may have discovered a star with an exoplanet that is so fast that both will leave the Milky Way.

The Hubble Space Telescope’s latest stunning images have allowed scientists to solve the mystery of the Bullseye Galaxy’s plentiful rings.

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 ...

A star system has been discovered to be moving at an estimated 1.2 million miles per hour, making it possibly the fastest moving solar system in our galaxy.

Astronomers may have found a star racing through our galaxy at an incredible speed—dragging a planet along with it! If ...

Enabled by supercomputing, University of Pretoria (UP) researchers have led an international team of astronomers that has ...

The United States continues to be the most likely country in which to get bitten by a shark, according to the annual ...

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

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