It’s dead! It’s alive! Did something survive? You’ve probably heard about the famous sun-grazing comet ISON, which made its closest approach to our local star on Nov. 28. But over the Thanksgiving ...

Comet ISON (4.5 billion B.C. – A.D. 2013) survived for more than 4.5 billion years in the frigid depths of the solar system, but it fizzled during its brief moment in the Sun on November 28. Through a ...

About 10,000 years ago, Comet ISON left our solar system's distant shell, a region known as the Oort cloud, and began streaking toward the sun. This November, the icy wanderer will reach the climax of ...

It's not at all certain that Comet ISON will turn out to be the "comet of the century," as hoped, but a couple of things are certain: It's not an alien spaceship, and it hasn't split up into three ...

Get ready for a stellar show. The much-anticipated Comet ISON is now visible to the naked eye, according to reports from many observers. Subscribe to read this story ad-free Get unlimited access to ad ...

Comet ISON has disintegrated in the sun’s intense heat and gravity, according to a growing consensus among astronomers. But even as it broke up, ISON provided valuable information about cometary ...

Comet ISON, a "shining green candle in the solar wind," is no longer with us, NASA declared Monday morning in a tribute to what many hoped would be the "comet of the century." On NASA's Comet ISON ...

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 ones ...