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

Astronomers produced the most complete map of the center of the Milky Way, which can provide insight into how stars and ...

Astronomers used RR Lyrae stars to trace the early Milky Way, revealing a rapid formation of its halo and disk, with chemical patterns similar to Andromeda.

Imagine trying to reconstruct the history of a city by studying only its oldest surviving buildings. You can't watch it being built, you can't interview the architects, all you have are the structures ...

Our sun was born 4.6 billion years ago near the crowded center of the Milky Way and then migrated roughly 10,000 light-years outward to the peaceful galactic suburbs it currently occupies. Now a pair ...

Add Yahoo as a preferred source to see more of our stories on Google. Artistic representation of the Milky Way, where the innermost stars move at near relativistic speeds (defined as velocities that ...

Astronomers wonder why there aren't more stars.

CWISE J1249+36, a low-mass runaway star, is traveling at an extraordinary speed that could propel it out of the Milky Way.

In the heart of the Milky Way galaxy, there is beauty in chaos. There dense clouds of dust and spindly filaments of cold molecular gas, the basic matter from which stars form, encircle the galaxy’s ...

An international research team has found that the Milky Way and its galactic neighbors appear to sit inside a vast, flat concentration of dark matter, a structure stretching roughly 10 megaparsecs and ...

If you’ve ever been to a place with minimal light pollution and looked skywards at nighttime, you’ve probably seen our Milky Way galaxy. It manifests as a thick, hazy band of stars streaking across ...

Ever since physicist Freeman Dyson first proposed the concept in 1960, the "Dyson sphere" has been the holy grail of ...