Breaking down the structure and history of a nearby — and weird — galaxy

Centaurus A is under scrutiny as it eats other galaxies.

By Phil Plait 2 days ago

How to create a massive black hole: Let it feed on a very dense star cluster

Supermassive black hole birth and growth may involve eating lots of stars.

By Phil Plait 3 weeks ago

Mashup of a galaxy and a quasar evolved into a supermassive black hole

Even monsters start out as embryos.

By Elizabeth Rayne 1 month ago

Over a dozen voracious supermassive black holes seen in a distant galaxy protocluster

Supermassive black holes get an early start in galaxy clusters.

By Phil Plait 1 month ago

For the first time, three supernovae are seen at the same time in a single galaxy!

The spiral galaxy NGC 5605 is popping off exploding stars.

By Phil Plait 1 month ago

The (maybe) most distant galaxy ever seen smashes the old record... by a lot

If confirmed, HD1 is the most distant galaxy seen, 13.5 billion light-years away!

By Phil Plait 1 month ago

Surprisingly high fraction of dead galaxies found in ancient galactic city

What's killing these extremely distant galaxies?

By Phil Plait 1 month ago

Follow-up: ORCs are weird, huge, and still mysterious circles in space

Odd Radio Circles may be millions of light-years across.

By Phil Plait 1 month ago

Another big JWST milestone: The first deep, clear image, with galaxies galore

Dozens of distant galaxies seen in newly released James Webb Space Telescope image

By Phil Plait 2 months ago

A nearby galaxy is giving birth to a brand new baby galaxy!

A small galaxy is born from the ripped-out guts of a big one.

By Phil Plait 2 months ago