stars

The Last Supernovae

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

1 year 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.

1 year 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…

2 years 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…

2 years ago

Huge Stars Can Destroy Nearby Planetary Disks

Westerlund 2 is a star cluster about 20,000 light years away. It's young—only about one or two million years old—and…

2 years ago

A New Kind of Supernova Explosion has been Discovered: Fast Blue Optical Transients

For the child inside all of us space-enthusiasts, there might be nothing better than discovering a new type of explosion.…

2 years ago

TESS is Also Helping Astronomers Study Bizarre Pulsating Stars

NASA's TESS, or Transiting Exoplanet Survey Satellite has one main job: finding exoplanets. But it's also helping astronomers study a…

2 years ago

Both Stars in This Binary System Have Accretion Disks Around Them

Stars exhibit all sorts of behaviors as they evolve. Small red dwarfs smolder for billions or even trillions of years.…

2 years ago

The Perfect Stars to Search for Life On Their Planets

We tend to think of our Earthly circumstances as normal. A watery, temperate world orbiting a stable yellow star. A…

2 years ago

Neptune-Sized Planet Found Orbiting a Dead White Dwarf Star. Here’s the Crazy Part, the Planet is 4 Times Bigger Than the Star

Astronomers have discovered a large Neptune-sized planet orbiting a white dwarf star. The planet is four times bigger than the…

2 years ago