Comets
Catch Comet Lemmon While You Can
If you honed your observing chops on Comet PANSTARRS this spring, consider dropping in on Comet Lemmon, now returning to the…
Comet Lemmon, Now in STEREO
An icy interloper was in the sights of a NASA spacecraft this past weekend. Comet 2012 F6 Lemmon passed through…
Comet PANSTARRS: The Show’s Not Over Yet!
While Comet C/2011 L4 (PANSTARRS) is fading to barely naked-eye and binocular visibility (the comet has lost a full magnitude…
Hubble Telescope Captures Image of Comet ISON
Here’s our first good look at Comet (C/2012 S1) ISON. The Hubble Space Telescope captured this shot on April 10,…
New Calculations Effectively Rule Out Comet Impacting Mars in 2014
NASA's Near-Earth Object Office says that new observations of comet C/2013 A1 (Siding Spring) have allowed further refinements of the…
Comet PANSTARRS … Going … Going … Not Gone Yet!
It's falling out of the news but Comet PANSTARRS still lives! You can still see it in a clear sky…
A Detailed Look at the Coma of Comet PANSTARRS
Comet PANSTARRS has peaked, but astronomers are still keeping an eye on this comet to try and determine what its…
Was the Repeating Passage of Halley’s Comet Known of in Ancient Times?
An interesting and largely unknown tale of ancient astronomy recently came our way while reading author and astrophysicist Mario Livio’s…
Comet PANSTARRS Meets the Andromeda Galaxy — More Amazing Images
More of our readers had success in capturing the awesomeness of seeing Comet PANSTARRS encounter the Andromeda Galaxy (M31) in…
Incredible Views: Comet PANSTARRS Meets the Andromeda Galaxy
We warned you it was going to happen, and here's visual proof! In this comet encounter of the extragalactic kind,…