Comet McNaught in 2007. Image credit: Siding Spring Observatory.
Comet ISON continues to brighten. Check out this article from UniverseToday.com
http://www.universetoday.com/106404/comet-ison-suddenly-brightens-as-it-dives-toward-the-sun/
And here's the link to the Hubble Site blog:
http://hubblesite.org/hubble_discoveries/comet_ison
