... The rare transit of Venus across the face of the Sun in 2004 was one of the better-photographed events in sky history. ... Follow the handle of the Big Dipper away from the dipper's bowl until you get to the handle's last bright star. ... Looking Back at an Eclipsed Earth . ... What's that dark spot on planet Earth? ... The above image of Earth was taken last week by MTSAT during an annular eclipse of the Sun. ... At the Edge of NGC 891 . ... This sharp cosmic portrait features NGC 891. ...