Fate of Universe revealed by galactic lensThe huge galactic cluster known as Abell 1689 acted as a cosmic magnifying glass A "galactic lens" has revealed that the Universe will probably expand forever. Astronomers used the way that light from distant stars was distorted by a huge galactic cluster known as Abell 1689 to work out the amount of dark energy in the cosmos. Dark energy is a mysterious force that speeds up the expansion of the U
