Black Holes

Hubble Sees Dark Shadows That Could Be Cast by a Supermassive Black Hole

We use the term 'supermassive black hole' with a kind of casual familiarity. But stop and think about what they…

7 days ago

Merging Black Holes and Neutron Stars. All the Gravitational Wave Events Seen So Far in One Picture

The Theory of Relativity predicted the existence of black holes and neutron stars. Einstein gets the credit for the theory…

2 weeks ago

Do neutron star collisions produce black holes?

A new study looks at how neutron stars can merge to create a black hole.

3 weeks ago

We actually don’t know how fast the Milky Way’s supermassive black hole is spinning but there might be a way to find out

The stars at the center of our galaxy could tell us just how fast our closest supermassive black hole is…

1 month ago

Astronomers Watch a Star Get Spaghettified by a Black Hole

When a black hole consumes a star, it does so by turning it into spaghetti first. Astronomers have seen it…

2 months ago

Black Holes Make Complex Gravitational-Wave Chirps as They Merge

When black holes collide, they emit chirps of gravitational waves even after they have merged.

2 months ago

Einstein. Right again

Astronomers can now test the limit of relativity and whether new physics lies beyond Einstein's model.

2 months ago

The Shadow from M87’s Supermassive Black Hole has Been Observed Wobbling Around the Galaxy for Years

Over the past decade, the shadow of a black hole in M87 has been wobbling, which tells us about how…

2 months ago

Behold! The Black Hole Collision Calculator!

A new tool called the Black Hole Collision Calculator let's users see just how powerful a collision between a black…

3 months ago

Why Can Black Hole Binaries Have Dramatically Different Masses? Multiple Generations of Mergers

Black hole mergers with very different masses tell us how small mergers can give rise to even larger ones.

4 months ago