From the width of a football field to the size of a small city, the space rocks called asteroids have the potential to be killers. But some asteroids may be loaded with billions of dollars' worth of iron, nickel and even platinum. Will asteroids turn out to be our economic salvation or instruments of extinction?

Text and illustrations explore the theory that the collision of an asteroid with the Earth ended the Cretaceous Period and caused the extinction of the dinosaurs.

Introduces children to asteroids, comets, and meteors.

Discusses the history of comets and asteroids, how they are formed, where they are found, and what impact they made have on the future of the Earth.

With an asteroid on a collision course with Earth, Doctor Toby Glyer and his partner William Connors must find a way to make contact with their wayward children -- the Briareus nanites -- and save the planet.

Presents a children's book for early readers that describes comets, asteroids, and meteoroids.

Embark on an astounding journey across 100,000 light-years to witness key moments in the history of the Milky Way. Using cutting-edge science, National Geographic constructs a 3-D state-of-the-art CGI model of the galaxy. Peer into the heart of the Milky Way on the hunt for super-massive black holes, watch how stars are born and die, fly out and above the plane of the galaxy to understand its true shape, and scour its dusty spiral arms for the possibility...

"Young readers will learn all about space."--

Astro, an asteroid that wants nothing more than for his personal outer space to be respected, is hit by a passing satellite and sent on what turns out to be a great adventure from the asteroid belt to Earth. Includes "space facts."

"In The Last Days of the Dinosaurs, Riley Black walks readers through what happened in the days, the years, the centuries, and the million years after the impact, tracking the sweeping disruptions that overtook this one spot, and imagining what might have been happening elsewhere on the globe. Life's losses were sharp and deeply-felt, but the hope carried by the beings that survived sets the stage for the world as we know it now. Picture yourself...