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, 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 ...

Experts gives Comet ISON only a 30 percent chance of surviving its crucial Thanksgiving Day encounter with the sun. Or maybe 40 percent. Whatever the odds, scientists say what some have called the ...

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There were some interesting developments involving comet C/2012 S1 (ISON) over the weekend. The View From the Far Side of the Sun Advertisement ISON is being observed by many spacecraft. One of them ...

If there is one thing we know about comets, it is that their behavior is really hard to predict. Comets will always surprise us—sometimes to our disappointment. It looks like comet ISON, or most of it ...

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 ...

After a multimillion-year plunge from the frozen fringes of the solar system, Comet ISON may have broken apart and evaporated in the fierce heat and crushing gravity of the sun before or during a ...

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 ...

Astronomers and amateur stargazers alike are looking to the skies this week in hopes of spotting a rare cosmic display from Comet ISON. The moment of truth comes Thursday - Thanksgiving Day. The ...

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Whenever the phrase "comet of the century" gets tossed around, we recommend remembering all the buzz about Kohoutek. If you were around in 1973, you may recall that Kohoutek was supposed to give us an ...