The supermassive black hole named Sagittarius A* lies in the middle of the Milky Way. Observations of S2 and other stars also helped astronomers calculate the extraordinary size and mass of ...

M11 is best viewed in the hours between sunset and midnight in August, when the cluster can be found roughly 40 degrees above ...

Only a fraction of the size of the Milky Way, these galaxies have thus far been too faint for most telescopes to spot.

Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they were independent galaxies, extremely large and distant.

The system — known as UPM J1040−3551 AabBab — consists of a pair of cold brown dwarfs orbiting a pair of young red dwarf ...

CINCINNATI (WKRC) - Scientists reportedly spotted a comet the size of Manhattan flying through the Milky Way galaxy, marking the third time an object from outside the galaxy has been spotted in ...

Our Milky Way is one of more than 100 galaxies bound together by gravity.

A team of international astronomers has unveiled a massive, previously unknown cloud of gas and dust streaming toward the ...

Ursa Major III, once considered a dark-matter-dominated dwarf galaxy, may actually be a dense star cluster. New research suggests its gravity is maintained by a core of black holes and neutron stars, ...

High in the Milky Way, a dying giant has thrown astronomers a cosmic curveball. A star known as DFK 52, sitting in the massive Stephenson 2 cluster about 19,000 light-years away, has been caught ...