A galaxy racing through space at an astonishing speed of two million mph (3.2 million km/h) has created a dramatic collision.

Scientists have finally imaged a star outside of the Milky Way for the first time. Here's what it looks like and how they did ...

A shockwave caused by the galaxy NGC 7318b slamming into four other galaxies is akin to a "sonic boom from a jet fighter." ...

A massive collision of galaxies sparked by one traveling at a scarcely-believable 2 million mph (3.2 million km/h) has been ...

Should art museums be showing art history? Or cultural history, which isn't the same thing? Getty and LACMA exhibitions give ...

To explore the galaxy and hunt for resources, intelligent aliens might need to turn their home stars into natural spaceships, ...

Now, a new study published Nov. 11 in Nature Astronomy has revisited the Voyager 2 data and discovered that Uranus was ...

For a long time, astronomers believed galaxy formation followed a very specific model: cosmic gas collects in clumps, stars ...

Argonne National Laboratory scientists performed the most extensive simulation of the cosmos on Frontier supercomputer. What ...

Researchers used the Dark Energy Spectroscopic Instrument to map how nearly 6 million galaxies cluster across 11 billion years of cosmic history. Their observations line up with what Einstein's theory ...

The first-ever close-up of an extragalactic star looks different than expected and might give a view of what stars look like at the end of their lives.

The star, situated in a galaxy orbiting our own tens of thousands of light-years away, may be on the verge of a spectacular ...