1. Comet ISON could be among the brightest comets of the last 50 years
2. The Hubble team says ISON’s dust tail extends more than 57,000 miles -- more than twice the circumference of Earth at the equator.
3. The comet's head (or coma) is estimated to be 3,100 miles across; that’s 1.2 times the width of Australia!
4. NASA says it will be visible all night long when it passes almost directly over the North Pole.
5. Comet Ison was discovered by Russian astronomers Vitali Nevski and Artyom Novichonok using the International Scientific Optical Network (ISON) in Russia.
6. Comet ISON will be closest to Earth on December 26 2013.
7. Between January and March 2013 NASA’s SWIFT telescope discovered that ISON was shedding 130 lbs (59 kilograms) of water every minute.
8. In January 2013, comet Ison was spewing more than 112,000 pounds (50802 kilograms) of dust every minute.
9. Comet ISON has taken at least a million years to reach us travelling from the so-called Oort cloud – a reservoir of perhaps 2 trillion of chunks of rock and ice.
10. Comet ISON belongs to a special category of comets called sungrazers.?