Comet ISON: What to Expect

Skywatchers are getting excited about the passage of Comet ISON, even though it’s months away, at the end of November. Why all the fuss? ISON is coming in fresh from the Oort cloud, making its first inner solar system passage of the Sun. That means it should be loaded with volatiles that will vaporize during its passage, both creating spectacular colored tails and providing clean spectra of its original components. Check out the details below.

Source SPACE.com: All about our solar system, outer space and exploration