Credit: Rob Pfile
Comet Hyakutake was discovered in January 1996 by Yuji Hyakutake using 25x150 binoculars. It was dubbed the Great Comet of 1996, becoming visible to the naked eye in March.
Comet ISON is a sungrazing comet on its maiden voyage to the inner solar system, and has the potential to put on quite a show in 2013 if it survives its close encounter with the Sun.
ISONblog draws on the expertise of the astronomers and staff of the Space Telescope Science Institute, home of the science mission of the Hubble Space Telescope, to bring you unique analysis and original images of Comet ISON during its visit to our skies.
Have you been taking your own pictures of ISON or do you just want to check out those who have? Join the Comet ISON Pool on Flickr.
NASA's Comet ISON Toolkit
resources for everyone
NASA Comet ISON Observing Campaign
resources for amateur and professional astronomers