Since the discovery of Comet ISON in September 2012, astronomers worldwide have eagerly anticipated its peak performance in late 2013. Many have high hopes that ISON will turn out to be a glorious ...

If the comet ISON makes it out intact from its encounter with the Sun this week, the Earth is in for a potentially dazzling sight in the December night skies as it passes close to Earth and out ...

In a reversal that would make a comic book writer blush, scientists seem ready to resurrect Comet ISON after its untimely Thanksgiving demise. Over the holidays, NASA brought leading astronomers ...

(Update: Thanksgiving Day, 2:18 PM ET: Astronomers working with NASA’s Comet ISON Observing Campaign (CIOC) continue to monitor ISON’s progress as it swings around the sun. No word yet on its ...

All I had to do was write about Comet ISON's fading yesterday and today news comes of another outburst and a possible breakup. Astronomer Emmanuel Jehin of the TRAPPIST team, using a 60-cm telescope ...

Within days after a new comet is first discovered, astronomers can tell you exactly what its path through the solar system will look like. They can calculate when it will make its closest approach to ...

Comet ISON has had an outburst in recent days. It’s now barely visible to the eye alone in dark skies! Plus now near a bright star. If you purchase a product or register for an account through a link ...

There were hopes over the weekend that ISON might have survived its close encounter with the sun. But "with more than a little sadness," the space... Comet ISON Is No More, NASA Says Comet ISON, a ...

After a remarkable flare up in brightness last week, comet ISON has become visible to the naked eye as it passes Earth on its journey toward the sun, according to reports from the Comet ISON Observing ...

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[embed[http://www.youtube.com/watch?v=pv7x1H1b9MA[/embed] Video of Comet C/2012 S1 ISON compiled from images taken by NASA's Deep Impact spacecraft on Jan. 17-18 ...