Possibly one of the best-known constellations in the northern sky, Ursa Major—or the Great Bear—contains an asterism of seven ...

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," ...

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

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

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

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

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

Predictions are uncertain, but the solar system may be pushed farther from the galactic core or even ejected entirely from ...

Astronomers may have discovered a scrawny star bolting through the middle of our galaxy with a planet in tow. If confirmed, the pair sets a new record for the fastest-moving exoplanet system, nearly ...

Scientists have created the first-ever 3D maps of star-forming molecular clouds near the Milky Way's supermassive black hole, ...