Asteroid approaching Earth. Computer artwork of an asteroid approaching Earth. Asteroids are space rocks with diameters of less than 100 kilometres. There are thousands of asteroids in the solar system, mostly between the orbits of the planets Mars and Jupiter. Asteroids in this belt may have their orbits disturbed so that they approach Earth. It is inevitable that Earth will be struck by an asteroid at some point in the future, with catastrophic consequences. It is thought that the extinction of the dinosaurs at the end of the Cretaceous period (around 65 million years ago) was caused by an asteroid impact.
Model release not required. Property release not required.