NASA's Guide to Viewing the Comet PANSTARRS this Month

Yesterday, the comet 2011 L4 (called PANSTARRS after the Panoramic Survey Telescope and Rapid Response System) became visible in the Northern Hemisphere for the first time, meaning some of us north of the equator will have a chance to view a comet before ISON's passage in the fall. But you'll need the right conditions… » 3/09/13 1:00pm 3/09/13 1:00pm

Could a comet hit Mars in 2014?

A recently discovered comet will make an uncomfortably close planetary flyby next year — but this time it's not Earth that's in the cosmic crosshairs. According to preliminary orbital prediction models, comet C/2013 A1 will buzz Mars on October 19, 2014. Early calculations suggest that the chance of impact is low —… » 2/26/13 6:20am 2/26/13 6:20am

The Webcomic Guide to the Apocalypse: Early Tales of Comets Destroying…

In the Webcomic Guide to the Apocalypse, I've been drawing short comics about very early apocalyptic fiction. So far, I've covered stories about plagues and the dying Earth, and this week, we're looking above, to some 19th-century tales in which comets threaten to destroy human civilization—and sometimes extinguish… » 1/27/13 1:00pm 1/27/13 1:00pm

New comet will fly by in 2013! And it could be brighter than the Full…

Russian astronomers using the International Scientific Optical Network's (ISON) telescope have discovered a comet that's scheduled to make its closest appearance to Earth in December of 2013. Called C/2012 S1, it's expected to be the brighest visitor to our solar system in the past century — a comet that'll be… » 9/27/12 10:30am 9/27/12 10:30am