The potentially dazzling Comet ISON made its closest pass with the sun on Thanksgiving Day (Nov. 28). ISON will make its closest approach to the sun — called perihelion — on Nov. 28 at 1:38 p.m. EST (1838 GMT). Photos of Comet ISON: A Potentially Great Comet
Editor's Update for Dec. 11: RIP Comet ISON, we miss you. Comet ISON has officially been declared extinct after its close slingshot around the sun on Nov. 28. Initial hopes that some of the comet survived the solar passage were short-lived as it soon became clear the comet was destroyed by the sun encounter. Read the Latest Story: Scientists Declare Famous 'Sungrazer' Dead After Sun Encounter
You can follow the latest Comet ISON news, photos and video on SPACE.com. If you snap an amazing picture of Comet ISON or any other night sky view that you'd like to share for a possible story or image gallery, send photos, comments and your name and location to managing editor Tariq Malik at email@example.com.
An ISON Observer's Guide: How to See ISON's Thanksgiving Day Encounter
Be sure to read these helpful tips and tricks before you head out to find Comet ISON on Thanksgiving Day. SPACE.com Skywatching Columnist Joe Rao also details the best forecasts for what the comet will look like after its close brush with the sun.
Science of a Comet: ISON Has Scientists Fired Up
The promising Comet ISON's close pass by the sun this week has amateur astronomers on the edge of their seats, but professional scientists are anticipating the celestial encounter with perhaps even greater relish.
PHOTOS: Incredible Photos of Comet ISON
Amateur observers and professionals have taken some amazing photos of Comet ISON as it barrels through the inner solar system. See photos of ISON taken by spacecraft orbiting Mars, Earth-bound observers and a probe orbiting Mercury here.
Reference: Comet ISON, Incoming Sungrazer
Scientists think that ISON is on its first pass through the inner solar system after leaving the Oort cloud — a mass of icy bodies on the outskirts of the solar system. Find out more about the science of the sungrazer here.
Photo Guide: How to Photograph Comet ISON
Comet Quiz: Test Your Cosmic Knowledge
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