Andromeda Galaxy

ORCs—odd radio circles—are one of the weirdest recent discoveries in the heavens above

Building an observatory on the Moon would be a huge challenge—but it would be worth it.

March 8, 2025: Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the weekend.

The Large Magellanic Cloud, a close neighbor to the Milky Way, may house a giant black hole. It's the closest supermassive black hole outside of our galaxy.

Nevada is one of very few places left in the country where there is so little artificial light the Milky Way is visible to the naked eye.

The Tarantula Nebula is the most important star-forming complex in the Local Group of galaxies, which includes the Milky Way, the Large Magellanic Cloud, and the Andromeda galaxy.

A century ago, the American astronomer Edwin Hubble first established that this so-called 'spiral nebula' was approximately 2.5 million light years away from our Milky Way Galaxy.

Astronomers have created the largest photomosaic of the Andromeda galaxy yet using Hubble data. The image helps trace the hidden history of Andromeda. The post Andromeda galaxy: Hubble's largest photomosaic yet first appeared on EarthSky.

It took 10 years.

See how elliptical galaxies in the distant universe were born, as new research gives astronomers a closer look at galactic collisions and star formation.

Open access // by Fabian Scheidler (Le Monde diplomatique - English edition, November 2024)

Built by MIT researchers, the Plasma Science Experiment aboard the Voyager 2 spacecraft took measurements for the last 47 years and 15 billion miles, before shutting down on Sept. 26.

If you're thinking of a galaxy, the image in your head is probably the Andromeda Galaxy! Read more about our closest galactic neighbor.

A black hole duo is headed for a collision. The active central black holes of 2 distant merging galaxies are only 300 light-years apart. The post Black hole duo will merge in a distant galaxy first appeared on EarthSky.

The Andromeda Galaxy, the Milky Way's closest galactic neighbor, glows brightly in a new Hubble Space Telescope image with swathes of ionized gas that fuel star formation.

Have you ever wanted to make a $150,000 gamble? If you're right, you open a new window to the universe. But if you're wrong, you've just wasted a lot of money and time.

Enjoy this gallery of deep-sky photos for August 2024 from our EarthSky community. If you have a great photo to share, send it in too. We love to see them! The post Deep-sky photos for August 2024: Editor's picks first appeared on EarthSky.

Andromeda and the Milky Way may collide, or they may safely swing past each other. Time will tell

Why are we so obsessed with the Magellanic Clouds?

NASA has released a stunning new image snapped by the NASA/ESA/CSA James Webb Space Telescope of the active, central part of the nearby spiral galaxy Messier 106.