标签：#astrophysics

Star, moving at 8% the speed of light, may let us measure the black hole's rotation.

We expected them to be there, but they had previously been too small to see.

It's unclear how the planet avoided its star's bloated red giant stage.

At the right point of the orbit and stellar cycle, the star's chromosphere brightens.

"I consider this a success already, just from the fact that we're even going to try this."

The black hole accounts for over two-thirds the mass of the object it inhabits.