The Milky Way was once a textbook example of how a spiral galaxy should form and evolve. Now a wave of new observations and ...

By tracking these stars back to where they came from, scientists can map the gravitational field of the Milky Way. This helps ...

What's the size of the Milky Way galaxy? Learn how, depending on your definition, the size can change.

Globular clusters are often described as ancient, tightly bound fossils of the early Milky Way. It has been believed that ...

Using data from the James Webb Space Telescope, astronomers traced how Milky Way–like galaxies formed and changed over time.

Hypervelocity stars have, since the 1920s, been an important tool that allows astronomers to study the properties of the ...

A new study shows how Milky Way chemical tracks emerge from shifting star formation and gas supply, reshaping ideas about the ...

The Andromeda galaxy helped Edwin Hubble settle a great debate in astronomy. Stocktrek Images via Getty Images A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known ...

Astronomers analyzing the interstellar object known as 3I/ATLAS say new trajectory and composition data point to an origin ...

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 ...

The Milky Way could be coming to a sky near you. The billions of stars comprising our home galaxy should appear especially vibrant in late-May as the band arcs across the night sky. The reason has ...

The Milky Way's core will be visible to stargazers in the southern hemisphere, including Tennessee, this month and throughout August. No special equipment is needed to view the galaxy, just a dark sky ...