Comet ISON at 10:51 a.m. EST Comet ISON has moved quite close to the sun in this image from ESA/NASA's Solar and Heliospheric Observatory captured at 10:51 a.m. EST on Nov. 28, 2013.

If Comet ISON 2013 survives as it whips around the sun on Thanksgiving, some predict it could be a spectacular show in December as it flies back to the outer reaches of the solar system and beyond.

Did Comet ISON survive its brush with the sun? Four days after the comet made its closest approach to our nearest star, the scientific consensus is “probably not.” Yes, something did survive ...

Comet ISON Is No More, ... Tragically, on November 28, 2013, ISON's tenacious ambition outweighed its ability, and our shining green candle in the solar wind began to burn out.

Dec. 3, 2013 -- Comet ISON may no longer be streaking across the sky, but that doesn't mean it's completely obliterated. Dean Pesnell, Project Scientist at the Solar Dynamics Observatory at NASA, ...

The orbit of comet ISON (blue), with its position marked on Nov. 17, 2013, a little over a week before its encounter with the Sun. Illustration by NASA/JPL Advertisement ...

Like so many other objects of public fascination, comet ISON has flamed out. For months, this bright comet from the wilderness at the edge of the solar system had scientists and sky watchers on edge.

Comet ISON on Nov. 12, 2013. Photo by Michael Jäger. Once the gas (and ejected dust) in the coma is out in space, it can be affected by both the solar wind and the pressure of sunlight.

Excitement continues to rise among both professional and amateur astronomers about Comet ISON, which on Nov. 28 of this year might become one of the brightest comets ever seen, outshining such ...

Earthlings can expect quite the lightshow in 2013, thanks to the impending arrival of a newly discovered comet, expected for a spectacular flyover next December. The comet Ison, a chunk of ice and ...

It doesn't look like Comet ISON will live up to the considerable hype, one researcher says. ISON has been billed as a potential "comet of the century," with some experts saying it could blaze as ...

Scott MacNeill sent SPACE.com this image of Comet C/2012 S1 ISON taken from Frosty Drew Observatory in Charlestown, R.I. on Nov. 15, 2013. “I had a short window to shoot as clouds and haze were movi ...