... The Radio Sky: Tuned to 408MHz . ... In the 1970s large dish antennas at three radio observatories, Jodrell Bank, MPIfR, and Parkes Observatory, were used to do just that - the data were combined to map the entire sky. ... Characteristic of large, complex impact craters on the Moon, the central uplift was produced by a rebound of the suddenly molten lunar crust during the violent impact event. A Twisted Meteor Train . ... Saturns Iapetus: Moon with a Strange Surface . ...