How astronomers used gravitational lensing, a space-time trick predicted by Einstein, to detect a black hole measuring 30 billion times the mass of the sun.

Webb’s new images of the Bullet Cluster reveal the most detailed dark matter map yet, shedding light on cosmic collisions and ...

To understand gravitational lensing and dark matter, James Jee, a professor at Yonsei University, says to think of a pond ...

NASA's James Webb Space Telescope recently zeroed in on the Bullet Cluster—delivering highly detailed images that show a ...

NASA’s James Webb Space Telescope has captured high-resolution images of the Bullet Cluster, revealing its complex dynamics.

Seen as a long strand with smaller threads branching, the Quipu superstructure contains 68 galaxy clusters spanning 1.4 ...

Learn how a "black hole 30 billion times the mass of the sun in a galaxy 2 billion light years away" using gravitational ...

For years, scientists have worked to chart the universe’s massive structure, aiming to test key models of cosmology. These ...

With the release of its first images this month, the Vera C. Rubin Observatory has begun a 10-year mission to help unravel ...

Webb discovered dozens of small, powerful galaxies from 800 million years ago that likely drove cosmic reionization by ...

A new paper claims astronomers discovered an ultramassive black hole heavier than any other black hole we've ever measured.