... A Roll Cloud Over Missouri . ... What kind of cloud is this? ... A flying saucer from outer space crash-landed in the Utah desert yesterday after being tracked by radar and chased by helicopters and airplanes. ... The Sombrero Galaxy from HST . ... Reasons include the Sombrero's unusually large and extended central bulge of stars, and dark prominent dust lanes that appear in a disk that we see nearly edge-on. ... Stars of the Galactic Center . ... The Tadpoles of IC 410 . ... The Phases of Venus . ...