Earth is not only orbiting the Sun it is also traveling through the Milky Way on an enormous galactic journey. In this video ...

Astronomers studying the Milky Way's oldest stars have estimated that the Universe is about 13.6 billion years old.

WASHINGTON (Reuters) -Astronomers have observed a galaxy dating to an earlier epoch in the universe's history that surprisingly is shaped much like our Milky Way - a spiral structure with a straight ...

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

The James Webb Space Telescope has discovered Zhúlóng, a candidate for the most distant spiral galaxy in the universe. The perplexing Milky Way 'twin' dates to 1 billion years after the Big Bang, and ...

A groundbreaking study in galactic archaeology proves the Sun made a treacherous journey to reach its current home in the ...

It's a new window into the first star explosions.

New supercomputer simulations suggest the Milky Way could be surrounded by dozens more faint, undetected satellite galaxies—up to 100 more than we currently know. These elusive "orphan" galaxies have ...

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the American Astronomical Society in January 1925, a paper read by one of his ...

Astronomers have identified a star called PicII-503 inside the ultra-faint dwarf galaxy Pictor II, and its chemical ...

The local universe may be expanding more slowly than previously thought, a discovery that could relieve a pesky discrepancy ...