The oldest stars in the Milky Way are forcing a fresh look at one of cosmology’s biggest arguments. If some of them are about 13.

A look at Edwin Hubble’s role in confirming that the Andromeda Galaxy lies beyond the Milky Way, helping expand our ...

Will the Milky Way and Andromeda galaxies collide in several billion years? The odds have changed with a new study using ...

Billions of stars fill our galaxy that become visible at certain times of year. And in the U.S., that time, known as "Milky Way season," is beginning.

For decades, astronomers wondered why most nearby galaxies are speeding away from the Milky Way instead of being pulled in by its gravity. New simulations reveal the answer: our galaxy sits in a ...

Astronomers from the University of Groningen have discovered that the Milky Way does not move in the cosmic void, but is embedded in a flat "sheet" of dark matter. This was reported on March 11 in the ...

A nearby galaxy is behaving strangely—and now scientists know why. The Small Magellanic Cloud’s stars move in chaotic ...

Two new studies have measured the expansion of the universe in our immediate cosmic neighborhood using a novel method that ...

The Small Magellanic Cloud (SMC) is one of the Milky Way's closest galactic neighbors—a small, gas-rich galaxy visible to the ...

Using the stalwart Hubble Space Telescope, a team of astronomers have found a galaxy 300 million light away that appears to be made of at least 99.9 percent dark matter — so much that the galaxy is ...