Wallpapers for iPhone 4/4S in 640x960 resolution - optimized for your device’s screen to look perfect. A black hole surrounded by a glowing accretion disk of orange-red color. The material rotating in the disk is gradually drawn into the gravitational field of the hole. Numerous stars and cosmic dust are visible all around against the background of deep black space. The contrast between the dark core and the bright flaming ring highlights the enormous energy and gravitational forces. The scene highlights the mystery and power of black holes in space, demonstrating large-scale astronomical phenomena in the universe.