Stars

Hubble Reveals the Final Stages of a Dying Star

In April 2021 Hubble released its 31st-anniversary image. It's a portrait of AG Carinae, one of the most luminous stars…

2 days ago

Astronomers Discover an Intermediate-Mass Black Hole as it Destroys a Star

Supermassive black holes (SMBH) reside in the center of galaxies like the Milky Way. They are mind-bogglingly massive, ranging from…

3 days ago

Betelgeuse's Mysterious Dimming Solved. It was… Dust

Astronomers have solved the mystery of dim Betelgeuse, and discovered how stardust can form.

3 months ago

Massive Stars Mix Hydrogen in Their Cores, Causing Them to Pulse Every few Hours or Days

Blue giant stars have a convective core that allows them to shine much longer.

4 months ago

Older Stars Rotate Faster Than Expected

Older stars should slow down, but new observations reveal that they have just as much of a spring in their…

4 months ago

Newly Forming Stars Don’t Blast Away Material as Previously Believed. So Why Do They Stop Growing?

We thought we understood how stars are formed. It turns out, we don't. Not completely, anyway. A new study, recently…

6 months ago

VY Canis Majoris is “Like Betelgeuse on Steroids”

The disappearance of a star can take many forms.  It could go supernova.  It could turn into a black hole. …

7 months ago

A New Study Says That Betelgeuse Won’t Be Exploding Any Time Soon

I have stood under Orion The Hunter on clear evenings willing its star Betelgeuse to explode. “C'mon, blow up!” In…

7 months ago

This is a Simulation of the Interstellar Medium Flowing Like Smoke Throughout the Milky Way

How do stars form? We know they form from massive structures called molecular clouds, which themselves form from the Interstellar…

8 months ago

Astronomers Discover Hundreds of High-Velocity Stars, Many on Their Way Out of the Milky Way

Combining data from two of the largest databases in the world, an international team of astronomers was able to doubledthe…

9 months ago