... The rare transit of Venus across the face of the Sun earlier this month was one of the better-photographed events in sky history. ... Unusual Spires Found on Comet Wild 2 . ... But when a bright comet passed in front of a bright star cluster last month, binoculars and cameras were able to show off their marked differences in dramatic fashion. Elliptical Galaxy M87 . ... Usually it is the Earth's Moon that eclipses the Sun. ... What caused the unusual light and dark layers on Saturn's moon Phoebe? ...