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

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

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

Hypervelocity stars (HVSs) were first theorized to exist in the late 1980s. In 2005, the first discoveries were confirmed.

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

Astronomers have discovered a unique collisional ring galaxy, nicknamed the "Bullseye," that features nine rings, the most ...

Centaurus A: NGC 5128 is a galaxy in constellation Centaurus, discovered in 1826 by Scottish astronomer James Dunlop. Messier ...

Located approximately 27,000 light-years (one light year equals approximately nine trillion kilometres) from Earth — relatively close when it comes to galactic black holes — Sag A* has an estimated ...

With a nickname like Big Sky country, it's no surprise Montana is the ultimate destination for this year's celestial events, ...

Set against a backdrop littered with tiny pinpricks of light glint a few, brighter stars, this is NGC 1858, a 10-million-year ...

October belongs to Pegasus and the water constellations, which float through the southern sky after nightfall. Reigning supreme high in the south are the Great Square of Pegasus and, stretching from ...