This time-lapse image shows Comet ISON approaching and leaving during its slingshot around the sun – represented by the white circle -- on Nov. 28, 2013. The ISON images clearly outline the ...

Comet ISON on Nov. 16, 2013. Click to embiggen. Photo by Waldemar Skorupa, via CIOC and spaceweather.com Over the years we’ve had some pretty amazing comets swing by our planet. I remember the ...

Comet ISON is expected to make its closest approach to the sun on Thursday, Nov. 28. This also happens to be Thanksgiving day. On its trip around the sun, ISON will come within 730,000 miles of ...

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 ...

ISON, the most closely watched comet in recent years, may be falling apart as it nears its close encounter with the sun. Comets are giant snowballs of frozen gases, rock and dust that can be ...

The comet, known as ISON, has been hyped as "the comet of the century." It may not quite live up to that billing, but astronomers say it is a one-of-a-kind object. The story of comet ISON started ...

When it was determined that the comet would eventually "graze" the sun, coming within 730,000 miles (1.2 million kilometers) of the solar surface on Nov. 28, 2013, the implication was that ISON wo ...

Comets will always surprise us—sometimes to our disappointment. It looks like comet ISON, or most of it, did not survive its encounter with the Sun yesterday, when it made a close approach at ...

On NASA's Comet ISON Observing Campaign website, astrophysicist Karl Battams writes that ISON was "born 4.5 billion BC, fragmented Nov. 28, 2013 (age 4.5 billion yrs old)." Then he adds this ...

Right now Ison is just another faint dot in the night sky only visible using advanced telescopes. Yet in 2013, the comet could draw millions outside to witness what could be the brightest comet ...

Adam Block of the Mt. Lemmon SkyCenter (University of Arizona), sent in another image of Comet Ison, taken Nov. 8, 2013. He writes in an e-mail message to SPACE.com: "This is exactly one month ...