GENERAL KNOWLEDGE

Detailed explanation-1: -Meteoroids are fragments and debris in space resulting from collisions among asteroids, comets, moons, and planets. They are among the smallest “space rocks.” We can see them when they streak through our atmosphere in the form of meteors and meteor showers.

Detailed explanation-2: -Asteroids. Asteroids are rocky, airless worlds that orbit our sun. They are remnants left over from the formation of our solar system. They can be about as wide as a car to about as wide as the state of Utah.

Detailed explanation-3: -And when NASA’s Dawn arrived in 2015, Ceres became the first dwarf planet to receive a visit from a spacecraft. Called an asteroid for many years, Ceres is so much bigger and so different from its rocky neighbors that scientists classified it as a dwarf planet in 2006.