... A Cerro Tololo Sky . ... High atop a Chilean mountain lies one of the premier observatories of the southern sky: Cerro Tololo. ... Crater Copernicus . ... Copernicus is distinguished by its size and by the many bright rays pointing out from it. Shuttle Moon . ... As a gorgeous full Moon rose above the eastern horizon on February 7, the Space Shuttle Atlantis streaked skyward towards an orbital rendezvous with the International Space Station. ... Space Station Shows Off New Robot Arm . ...