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 ...

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

As civilizations advance, they may need to migrate across the galaxy, and some researchers speculate they could use their own stars as massive engines. New research explores the possibility of a ...

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 ...

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

The dwarf galaxy ... history. Credit: NASA GSFC / CIL / Adriana Manrique Gutierrez illustration Astronomers have learned that galaxies tend to start out small and grow larger by collecting gas ...