SOLAR SYSTEM

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: -celestial object made up of ice, gas, and dust that orbits the sun and leaves a tail of debris. bowl-shaped depression formed by a volcanic eruption or impact of a meteorite.

Detailed explanation-3: -Every comet is made of the same basic ingredients–ice and dust. However, comets vary in how much of the ice is water ice and how much is ice made of other substances, including methane, ammonia, carbon dioxide, carbon monoxide, sulfur, and hydrogen sulfide.

Detailed explanation-4: -Comets are large objects made of dust and ice that orbit the Sun. Best known for their long, streaming tails, these ancient objects are leftovers from the formation of the solar system 4.6 billion years ago.

Detailed explanation-5: -The solid, core structure of a comet is known as the nucleus. Cometary nuclei are composed of an amalgamation of rock, dust, water ice, and frozen carbon dioxide, carbon monoxide, methane, and ammonia. As such, they are popularly described as “dirty snowballs” after Fred Whipple’s model.

Detailed explanation-6: -The coma is a halo of evaporated gas (water vapor, ammonia, carbon dioxide) and dust that surrounds the nucleus. The coma is made as the comet warms up and is often 1, 000 times larger than the nucleus. It can even become as big as Jupiter or Saturn (100, 000 kilometers).