stars

Why do Planetary Nebulae Look the Way They Do?

Planetary nebulae are the most beautiful objects in the night sky. Their gossamer shells of gas are otherworldly and evocative.…

3 months ago

The Spherical Structure at the Core of the Milky Way Formed in a Single Burst of Star Formation

Like other spiral galaxies, the Milky Way has a bulging sphere of stars in its center. It's called "The Bulge,"…

5 months ago

Just How Bad are Superflares to a Planet’s Habitability?

Star's can be full of surprises; some of them nasty. While our own Sun appears pretty placid, science has shown…

6 months ago

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…

7 months ago

Searching for Phosphorus in Other Stars

The Search for Life can be a lot messier than it sounds. The three words make a nice, tidy title,…

7 months ago

The Strange, Misshapen Orbits of Planet-Forming Disks in a Triple-Star System

Whatever we grow up with, we think of as normal. Our single solitary yellow star seems normal to us, with…

7 months ago

The Last Supernovae

The last supernova in history will be the final burst of light in a cold, dark, and dead cosmos.

8 months ago

Gamma-Ray Telescopes Can Measure the Diameters of Other Stars

Four gamma ray telescopes have used a new method of interferometry to measure the size of two stars.

9 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…

9 months ago

It Should Be Easiest to Search for Young Earth-like Planets When They’re Completely Covered in Magma

How did Earth evolve from an ocean of magma to the vibrant, life-supporting, blue jewel it is now? In its…

10 months ago