Detailed Hubble images reveal a single supermassive black hole wandering away from its host galaxy’s center where it belongs. The misplaced black hole is probably the result of a merger between two smaller black holes, but could also have been pushed by a jet of matter extending from the galaxy’s core. Nearly every galaxy has a supermassive black hole — millions to billions of times more massive... 

A moon probe has found millions of tons of water on the moon’s north pole, NASA reported Monday. The vast source of water could one day be used to generate oxygen or sustain a moon base. A NASA radar aboard India’s Chandrayaan-I lunar orbiter found 40 craters, ranging in size from 1 to 9 miles across, with pockets of ice. Scientists estimate at least 600 million tons of ice could be entombed...