Black Holes

Is this the Lightest Black Hole or Heaviest Neutron Star?

About 40,000 light-years away, a rapidly spinning object has a companion that's confounding astronomers. It's heavier than the heaviest neutron…

5 months ago

What Could a Next Generation Event Horizon Telescope Do?

Telescopes have come a long way in a little over four hundred years! It was 1608 that Dutch spectacle maker…

6 months ago

Everything in the Universe Fits in This One Graph. Even the Impossible Stuff

The Universe has physical constants, such as the force of gravity that define everything. If these constants were any different,…

8 months ago

The Early Universe Should Be Awash in Active Galaxies, but JWST Isn't Finding Them

Astronomers have found supermassive black holes in the centers of most galaxies. To get the black holes we see today,…

10 months ago

A Giant Black Hole Destroyed a Star and Threw the Pieces Into Space

A pair of X-ray telescopes have observed the messy aftermath of a star that came too close to a supermassive…

10 months ago

Gravitational Waves Can Be Gravitationally Lensed, and This Could Provide Another Way to Measure the Expansion of the Universe

Astronomers can never have enough ways to measure the expansion in the Universe, from nearby stars to distant quasars. A…

12 months ago

Gaze at a Nearby Actively Feeding Supermassive Black Hole

Astronomers recently shared a new image captured by the Hubble Space Telescope of the galaxy NGC 4395. This relatively diffuse…

1 year ago

Artificial Intelligence Produces a Sharper Image of M87’s Big Black Hole

Astronomers have used machine learning to sharpen up the Event Horizon Telescope's first picture of a black hole --- an…

1 year ago

A Mysterious Blob Near the Milky Way’s Supermassive Black Hole Might Finally Have an Explanation

New research from UCLA's Galactic Center Group has found an explanation for the mysterious "blob" (X7) at the center of…

1 year ago

Are Black Holes the Source of Dark Energy?

In a series of papers, an international team claims they've found the first observational evidence that supermassive black holes are…

1 year ago