GENERAL KNOWLEDGE

Detailed explanation-1: -Comets are frozen leftovers from the formation of the solar system composed of dust, rock, and ices. They range from a few miles to tens of miles wide, but as they orbit closer to the Sun, they heat up and spew gases and dust into a glowing head that can be larger than a planet.

Detailed explanation-2: -Cosmic dust – also called extraterrestrial dust, space dust, or star dust – is dust that occurs in outer space or has fallen onto Earth.

Detailed explanation-3: -Components of a Comet in the Vicinity of the Sun In this state comets are sometimes referred to as “dirty icebergs” or “dirty snowballs, ‘’ since over half of their material is ice. Approaching within a few AU of the sun, the surface of the nucleus begins to warm, and the volatiles evaporate.

Detailed explanation-4: -Astronomer Fred Whipple created the term “dirty snowballs” as one of the many ways to describe the characteristics of comets. These bodies are made of dust, rocks, organic compounds, and ice, and have three parts: nucleus, coma, and tail.