¿Qué son los asteroides?

The video explains the formation of asteroids and comets from early solar system debris. It describes the asteroid belt between Mars and Jupiter, where asteroids vary in size and orbit. Near-Earth objects and their potential impacts on Earth are discussed, including meteoroids that burn up in the atmosphere and meteorites that reach the surface. The video highlights the catastrophic effects of large asteroid impacts, such as the extinction of dinosaurs, and the low probability of similar future events.

What is the significance of the asteroid impact theory related to dinosaurs?

How often has Earth been hit by asteroids and comets, according to the text?