"There's a comet speeding in from the outer solar system, and it's about to slam into an asteroid. Who will be left standing after this interplanetary smackdown? The pockmarked asteroid, a veteran fighter who's already seen some action? Or the dazzling comet, with its incredible velocity and a tail that stretches millions of miles? Kicking off a dynamic series on cosmic collisions, Asteroid vs. Comet starts by comparing the two opponents, then offers...

"Discover the origins of water on Earth . . . with a talking comet! In this full-color graphic novel, an enthusiastic comet speeds through the universe, from the far reaches of space to planet Earth. Along the way, this rocketing rock reveals how our precious blue planet became, well, blue!"--Provided by publisher.