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...

"Do you know what lies in the asteroid belt? This nonfiction title takes curious readers on a journey to this rocky part of the solar system. Narrative text combines with vibrant illustrations to teach about asteroids and the other objects in the belt. Fun facts and features add bonus information, while questions encourage readers to think about what they have learned and connect more with the text. This title is sure to be a hit for kids wanting...

Asteroids come in all shapes and sizes--and hit our planet in them, too. But what happens if a catastrophically large one approaches earth? By looking on the ground at historical asteroid craters and present-day falls, and up into space for the big ones yet to come, a wide variety of scientists are trying to figure out how to track asteroids--and how to avoid devastating impacts in the future.