Astronomers offer proof of unseen 'darkmatter'

US astronomers say they have found the best evidence to date for “darkmatter”, the mysterious invisible substance that is believed to account for the bulk of the universe’s mass.

Using a host of telescopes, researchers focused on the collision between two galactic clusters. They found that most of the gravitational pull from the aftermath of the encounter comes from a relatively empty looking patch of sky, a strong suggestion that there is something more there than meets the eye.