Lightning might not strike twice, but black holes apparently do. An international group of researchers led by Tel Aviv ...

Learn more about LIGO, the observatory that detected two massive black holes merging, the largest in recorded history.

The image of supermassive black hole Sagittarius A * was created using data from the Event Horizon Telescope Collaboration.

The Fermi bubbles were discovered in 2010 by NASA’s Fermi Gamma-ray Space Telescope. The two orbs form an hourglass structure ...

Chandra X-ray Observatory and X-ray Polarimetry Explorer (IXPE) imagery of the Milky Way's core and supermassive black hole ...

Twin orbs of superhot plasma at the Milky Way's center known as the "Fermi bubbles" contain inexplicable clouds of cold ...

Astronomers using the Green Bank Telescope in West Virginia have spotted massive clouds of cold hydrogen gas hiding within the Fermi bubbles.

Scientists say the two black holes merged after colliding at speeds near the limit allowed by Albert Einstein’s theory of ...

Astronomers have detected cold hydrogen clouds within the Fermi bubbles near the Milky Way's core, suggesting a recent black hole eruption.

"It was something I’ve never seen before and I’ve looked at tens of thousands of images of galaxies over my career," he said.

Throughout cosmic evolution, although dwarf galaxies are individually small, they are numerous and serve as the fundamental ...