The gravitational lensing that causes this rare phenomenon cannot be explained solely by looking at observable objects—suggesting that dark matter had a hand in its formation.The gravitational lensing that causes this rare phenomenon cannot be explained solely by looking at observable objects—suggesting that dark matter had a hand in its formation.
A Newly Discovered ‘Einstein’s Cross’ Reveals the Existence of a Giant Dark Matter Halo from Wired Shigeyuki Hando
