A rare star reveals how the Universe's first stars exploded, helping explain the Milky Way’s outer halo and its unusual ...

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 ...

GENEVA — A remarkable discovery is forcing astronomers to rethink fundamental theories about how quickly galaxies evolved in the early universe. Scientists have spotted what appears to be a ...

Astronomers have discovered the first clear example of a star made entirely of materials from one of the very first stars.

Three of the oldest stars in our universe have been discovered, and they were lurking right under our noses this whole time, and traveling in the wrong direction The heavenly bodies were detected by ...

An MIT astronomy class has found three of the oldest stars in the universe lurking right outside the Milky Way. The stars, about 30,000 light-years from Earth, are in the galaxy's "halo," the cloud of ...

When we think about orbits, we usually picture the Earth zooming around the sun. But does the sun just sit there? Or is it on its own journey? I asked my friend Guy Worthey. He’s a space scientist at ...

Super galaxy clusters are among the largest structures in the universe. Now, a particularly large one has been measured, ...

Scientists are peering into the past and uncovering new clues about the early universe. Since light takes a long time to travel through space, they are now able to see how galaxies looked billions of ...

Astronomers reanalyzed the chemical composition of three stars in the Milky Way's halo and found that they are between 12 and 13 billion years old. They may have also been stolen from other galaxies.

Add Yahoo as a preferred source to see more of our stories on Google. The oldest stars in the Milky Way provide information about the age of the universe. (CREDIT: Elena Tomasetti) The oldest stars in ...