That prospect turned me into a serious shopper for trip cancellation and interruption insurance (one policy usually covers both), a product I had always dismissed as a rip-off. Like other value-oriented consumers, I had seen no need to add several hundred dollarsâ worth of vacation insurance to the price of a vacation. Until that trip. Since then we have insured a couple of other trips, but never needed to make a claim. The only time we came close was in the wake of 9/11.
What is a Comet? A comet is a very small solar system body made mostly of ices mixed with smaller amounts of dust and rock. Most comets are no larger than a few kilometres across. The main body of the comet is called the nucleus, and it can contain water, methane, nitrogen and other ices. When a comet is heated by the Sun, its ices begin to sublimate (similar to the way dry ice âfizzesâ when you leave it in sunlight).
Facts about Comets. There are many misconceptions about comets, which are simply pieces of solar system ices travelling in orbit around the Sun. Here are some fascinating and true facts about comets. The nucleus of a comet is made of ice and can be as small as a few meters across to giant boulders a few kilometres across. The closest point in a cometâs orbit to the Sun is called âperihelionâ.