In around a billion years, the cluster is expected to dissolve entirely, leaving behind only black holes orbiting the Milky ...

Researchers have discovered an extraordinarily aligned gravitational lens system, dubbed the Carousel Lens, that involves a ...

The energetic streams are together 23 million light-years in length—roughly as long as 140 Milky Way galaxies lined end to end ...

The James Webb Space Telescope has photographed the collision between a spiral and an elliptical galaxy, providing detailed ...

Several hundred million years ago, a smallish elliptical galaxy passed through a larger spiral one. The result of that ...

The pair of galaxies may eventually lose their Mona Lisa smile, but NASA says it will eventually transform into something ...

Astronomers on Maunakea on Hawai‘i Island have spotted the biggest pair of black hole jets ever seen, spanning 23 million ...

Cosmological data suggest unexpected masses for neutrinos, including the possibility of zero or negative mass.

Cosmology scientists at the Lawrence Berkeley National Laboratory have made a rare discovery: a cluster of galaxies that span ...

You might think of asteroids as just rocks of various sizes floating around in space. But they’re vastly more complex than ...

Astronomers have discovered the largest pair of black hole jets, stretching 23 million light-years. That’s like lining up 140 Milky Way galaxies one after another!

New infrared image highlights star formation triggered by merger-in-progress. Arp 107, a pair of interacting galaxies, shines ...