Hubble's study reveals Andromeda experienced major galactic collisions, unlike Milky Way. Its satellite galaxies show unusual ...

At the center of our galaxy, hidden behind dense clouds of gas and dust, the black hole Sagittarius A* rotates rapidly, ...

The Milky Way galaxy is about 1,000,000,000,000,000,000 kilometers (about ... Way—and yet we still have no idea what the dark ...

The galactic collision of the Andromeda galaxy and the Milky Way The Andromeda Galaxy, located about 2.5 million light-years from away, is barreling toward the Milky Way. Racing at a speed of 250,000 ...

"Everything scattered in the Andromeda system is very asymmetric and perturbed. It does appear that something significant ...

But what of smaller astronomical bodies, like the Large Magellanic Cloud, a dwarf satellite galaxy that is expected to collide with the Milky Way in 2.4 billion years? Nobody is quite sure whether ...

Astronomers have discovered strong evidence for the closest supermassive black hole outside of the Milky Way galaxy. This ...

LEDA 1313424, aptly nicknamed the Bullseye, is two and a half times the size of our Milky Way and ... by a collision. For that reason, it’s been nicknamed the “Bullseye galaxy.” ...

YR4 became the highest-rated asteroid predicted to strike Earth, and although predictions for impact have lowered, not enough ...

Nova explosions occur in binary star systems in which a white dwarf—the dense remnant of a dead star—continually siphons stellar material from a nearby companion star. As the outer atmosphere of the ...