By tracking these stars back to where they came from, scientists can map the gravitational field of the Milky Way. This helps ...

For a decade and a half, astronomers have been on the trail of a galactic mystery. In 2011, a project that surveyed the Milky Way galaxy for exoplanets — which are planets beyond our solar system — ...

NASA scientists have reported observing a mysterious red sphere-like object moving out of the Milky Way at a record speed of 283 miles per second. The phenomenon has sparked global curiosity among ...

Hypervelocity stars have, since the 1920s, been an important tool that allows astronomers to study the properties of the ...