asteroids

"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."--.

Provides an up-close look at some of the more elusive objects in space, including comets, asteroids, and meteors.

A look at asteroids and the asteroid belt, discussing space rocks, near-Earth objects, and more.

Find out about the four planets farthest from the Sun: Jupiter, Saturn, Uranus, and Neptune. Discover why these planets are called the gas giants, which spacecraft have visited them, and what lies beyond them in the solar system.

"It's 2012 and the world's most renowned astrophysicists, astronomers, and theoretical mathematicians have all died within the same 12-month period. But as these scientists discover, none of them are really dead after all. They have been taken hostage by alien forces. And while their family and friends are mourning their passing, and with the help of a 16-year-old with rare gifts, they face the ultimate struggle of prevailing over evil and returning themselves--and the earth--to safety"--Publisher.

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.".

Explains the wonders of space, comets, asteroids, extraterrestrial objects, and meteors.

Provides an up-close look at some of the more elusive objects in space, including comets, asteroids, and meteors.

Provides information about asteroids, comets, and meteoroids, explaining what they are, what they look like, and where they are located in the solar system, and more.

Presents information on the different tupes of celestial matter known as asteroids, comets, and meteors and on what scientists learned from the impact of a comet on the surface of Jupiter.