A comet with an atmosphere the size of Jupiter comes close to Earth

This glimmering apparition is Comet McNaught, which is visiting the inner solar system and may become visible with the naked eye by the end of the month. This is the first visit to the solar system by the million-kilometer comet. » 6/08/10 2:30pm 6/08/10 2:30pm

A Lightshow Worth Freezing Your Ass Off Over

The super bright Comet McNaught loses its tail among the Southern Lights during a geomagnetic storm over New Zealand, in this photo from Minoru Yoneto. Comet-hunting requires a good telescope, a "Dobsonian reflector," and the willingness to freeze your ass off for hours. But then occasionally you get amazing photos… » 12/28/07 6:30am 12/28/07 6:30am