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 ...

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.

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

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

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 ...

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, ...

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

New predictions suggest an upcoming NASA space telescope could spot over 400 Earth-mass worlds hidden throughout the Milky Way that have "gone rogue" and therefore wander our galaxy alone.