Astronomers have discovered a rare cosmic alignment that may reveal hidden dark matter, offering a new way to study the invisible substance that makes up most of the universe.

A massive dark matter halo may explain the strange 5th point of this 'Einstein Cross'

Source: space
Source Link: https://www.space.com/astronomy/dark-universe/a-massive-dark-matter-halo-may-explain-the-strange-5th-point-of-this-einstein-cross