Astronomers witnessed two galaxies engaged in an intense deep-space battle for the first time. Watch the “cosmic joust” in action.

Astronomers are excited about the first test images released today from the Vera C. Rubin Observatory, which show the ...

A team led by the Italian National Institute for Astrophysics discovered the most distant known fossil galaxy — a relic of ...

In this 2012 visualization, the Andromeda galaxy (left) appears in Earth's skies and begins to distort the Milky Way as the two galaxies merge. This hypothetical scenario was previously expected ...

Featuring never-before-seen views of galaxies and more than 2,100 newly discovered asteroids, the observations are only a ...

A high-speed crash between two dwarf galaxies might explain a unique feature in space – and provide useful information on ...

Galaxies, including the Milky Way, grow from thick, turbulent disks into layered structures. JWST’s images show this process ...

Astronomy fans can zoom in practically forever into the stunning first images from the Vera C. Rubin Observatory ...

To understand gravitational lensing and dark matter, James Jee, a professor at Yonsei University, says to think of a pond ...

With a spectacular array of galaxies and nebulas, the ambitious telescope begins its 10-year survey of the cosmos.

Visible are two prominent spiral galaxies, three merging galaxies, galaxy groups both near and distant, stars within our own Milky Way, and much more. The observatory also got a more detailed, closer ...