Galaxies are astronomical objects composed of billions or even trillions of stars. Our Earth and solar system are just a tiny ...

A small blue dwarf galaxy passed through the massive Bullseye galaxy. This impact created nine rings of new stars.

The Bullseye galaxy earned its nickname thanks to its wild number of rings. A smaller galaxy shot through its heart 50 ...

In the heart of our Milky Way galaxy, two gigantic "bubbles" extend roughly 50,000 light-years above and below the galactic ...

Where is all the water that may form oceans on distant planets and moons? The SPHEREx astrophysics mission will search the ...

Explore the James Webb Space Telescope's incredible discovery: a cosmic alignment revealing the teenage years of our Milky ...

This impact triggered gravitational waves, compressing gas and ... of gravity on galaxy dynamics. Astronomers use simulations to understand these complex interactions. By comparing theoretical models ...

Hubble’s high-resolution imagery allowed researchers to hone in on more of the Bullseye galaxy’s rings — and helped confirm ...

New research from the SAGA Survey, comparing the Milky Way with 101 similar galaxies, unveils how our galaxy differs ...

The Hubble telescope is yielding new clues to the evolutionary history of Andromeda ... encounter with another galaxy uses up all the available interstellar gas, star formation subsides.

Telescopes around the world have spotted a monster radio jet streaming from a quasar dating back to the first 1 billion years ...