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

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

Jee compared dark matter to crystal-clear water in a pond, with pebbles as the galaxies. “You cannot see the water unless ...

NASA's James Webb Space Telescope recently zeroed in on the Bullet Cluster—delivering highly detailed images that show a greater abundance of extremely faint and distant galaxies than ever before.

NASA’s James Webb Space Telescope has taken a closer look at the famous Bullet Cluster—a giant space collision between two ...

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

It means that the Bullet Cluster collision is still exceptional, but only in the one-in-a-hundred sense and not in the one-in-100-million sense indicated by the earliest research.

Dark matter just got a shade more mysterious. Scientists studying a smashup between giant clusters of galaxies have watched how each cluster’s dark matter passes through the collision – and ...