red giant stars
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…
If dark matter is a particle, it should get inside red giant stars and change the way they behave
Dark matter makes up the vast majority of matter in the universe, but we can't see it. At least, not…
1 in 10 Red Giants are Covered in Spots, and They Rotate Surprisingly Quickly
Sunspots are common on our Sun. These darker patches are cooler than their surroundings, and they're caused by spikes in…
Stars Like Our Sun Become Lithium Factories as They Die
In the beginning, the big bang created three elements: hydrogen, helium, and lithium. But it only produced a trace of…
It Seems Impossible, But Somehow This Planet Survived its Star’s Red Giant Phase
Astronomers working with TESS (Transiting Exoplanet Survey Satellite) data have found a planet where it shouldn't be: in the space…
This is the Surface of a Giant Star, 350 Times Larger Than the Sun
Using the ESO's Very Large Telescope Interferometer, an international team of astronomers has created the first detailed images of another…
A First: Star Caught in the Act of Devouring a Planet
How’s this for a depressing look into Earth’s potential future: astronomers have witnessed the first evidence of a planet's destruction…
Hundreds of Rogue Stars Found Just Outside the Milky Way
[/caption] It’s not quite like being kicked off a reality TV show, but some stars can get kicked out from…
Dust Shells Seen for the First Time Around Dying Stars
[/caption] Stars get pretty sloppy towards the end of their lives. As the nuclear fuels start to wane, the star…