galaxies

Protogalaxy Cluster Found When the Cosmic Fog Was Starting to Clear, When the Universe Was Just 750 Million Years Old

Origin stories are a focus of many astronomical studies.  Planetary formation, solar system formation, and even galaxy formation have long…

6 days ago

Astronomers Can Predict When a Galaxy’s Star Formation Ends Based on the Shape and Size of its Disk

A galaxy's main business is star formation. And when they're young, like youth everywhere, they keep themselves busy with it.…

3 weeks ago

When Galaxies Collide, Black Holes Don’t Always Get the Feast They Were Hoping for

What happens when galaxies collide? Well, if any humans are around in about a billion years, they might find out.…

4 weeks ago

Galaxy Mergers can Boost Star Formation, and it can Also Shut it Down

Galaxy mergers are beautiful sights, but ultimately deadly. In the midst of the collision, the combined galaxy will shine brighter…

4 weeks ago

An Active Galaxy That Erupts Predictably Every 114 Days Or So

Computers are known for their ability to spot patterns.  It’s what they are good at, and over the last 50+…

1 month ago

The Universe in Formation. Hubble Sees 6 Examples of Merging Galaxies

Audio narration by the author is available above 10 billion years ago, galaxies of the Universe were ablaze with the…

1 month ago

This is the Fireworks Galaxy. It’s had ten Supernovae in the Last Century Alone

Say hello to NGC 6946, otherwise known as the Fireworks Galaxy. This little galaxy is the most prolific producer of…

2 months ago

This galaxy took only 500 million years to form

Galaxies are supposed to build up a very slowly, taking billions of years to acquire their vast bulk. But a…

2 months ago

A Galaxy is Making New Stars Faster Than its Black Hole Can Starve Them for Fuel

A monster lurks at the heart of many galaxies – even our own Milky Way. This monster possesses the mass…

3 months ago

The family tree of the Milky Way. The mergers that gave us the galaxy we see today

Galaxies build themselves up slowly over time by cannibalizing their neighbors. Using an advanced suite of computer simulations, researchers have…

3 months ago