Comets .v.s Asteroids

By.Seth Hensley

Comets

  • A comet is an orbiting ball of ice and dust
  • Comets were formed 4.6 billion years goo about the same time as our solar system
  • The orbits of comets is very different than planets comets have oval shapes orbits called ellipses
  • When comets are far away they look like big icy rocks they get more active and the ice starts melting
  • Comets can have one or more tails they form when the comet starts melting near the sun

Comets

This drawing of a comet is indicating the main parts of a comet when it is close to the sun

Asteroids

  • An asteroid is too small to be considered a planet most are smaller than earths moon
  • A Meteoroid is a small particle from an asteroid or comet orbiting the Sun. An asteroid is a large rocky body in orbit about the Sun. A Meteor refers to the flash of light caused by a meteoroid.
  • A near earth astroid is an asteroid that has gotten to close to to earth and has been moved by earths gravity.
  • A theory is that an asteroids caused the extinction of dinosaurs.

Asteroids

This was taken from a car video in Russia and it landed soon after in som ice.
Russian scientists discovered a mountain sized asteroid that currently poses no threat to earth. Moats likely it will cause no threat.