Astronomers have discovered an extraordinary new giant radio galaxy with plasma jets 32 times the size of our Milky Way.

A radio telescope in South Africa has unearthed a giant galaxy—dubbed a "cosmic megastructure"—with plasma jets that measure ...

Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.

The Milky Way is our galactic home, but just how big is it?  Dive into this fascinating exploration of the galaxy's size, scale, and structure. Get ready for an astronomical perspective on our place ...

The galaxy, located in the constellation Leo, is about the same size as a star cluster within the Milky Way and is about the ...

Astronomers have unveiled surprising new details about a small galaxy, NGC 300, challenging existing theories on galaxy ...

Astronomers have achieved a groundbreaking feat by capturing the first clear image of a star in another galaxy. This ...

This collage highlights a small selection of regions of the Milky Way imaged as part of the most ... [+] detailed infrared map ever of our galaxy ... about 70 times the size of Jupiter and ...

The magnificent Andromeda galaxy (Messier 31), stands out as the most important nearby stellar island to our Milky Way, and ...

Learn about the size, temperature, and colour of each planet, and discover why Pluto is no longer considered a planet.

Leo P, a galaxy once dormant, has reawakened to form stars again, offering new clues about the universe's earliest galaxies.

The Milky Way and thousands of other galaxies are drawn to "something": We have no idea what it is. The Great Attractor is a ...