red giant stars

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…

2 months ago

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…

5 months ago

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…

5 months ago

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…

1 year ago

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…

3 years ago

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…

8 years ago

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…

9 years ago

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…

9 years ago