Science and Discovery

Dark Matter

1 article

An artist's impression of a supermassive black hole at the center of a galaxy, with subtle indications of surrounding dark matter clusters revealed by echo mapping.
Cosmos & Space

Echo map hints at dark matter clusters by supermassive black holes

In five of 14 observed galaxies, a new 'echo mapping' technique has revealed mass around supermassive black holes increases in a way visible matter alone cannot explain, strongly hinting at dense dark

David Grossman·June 21, 2026