The Lonely Existence of Asteroids and Comets (Graphic Library)

On a dark night as you watch the sky with your friends, a rock with a fiery tail shoots across the sky. A comet! Asteroids and comets hurtle through space, sometimes a little too close to Earth. But did you know that they are linked to life on this planet? From the asteroid Ceres to Halleys comet, blast into space and enter the lonely existence of asteroids and comets.