This book briefly discusses the composition and position of comets, asteroids and meteors.

A family fights for survival as a planet-killing comet races to Earth. John Garrity, his estranged wife Allison, and young son Nathan make a perilous journey to their only hope for sanctuary.

Explains the nature of comets, what is known about Halley's comet, and various countries' plans to study it in 1985 and 1986. Makes suggestions for maximum viewing enjoyment.

"When dark comet UD3 was spotted near Jupiter's orbit, its existence was largely ignored. But to individuals who knew better -- scientists like Benjamin Schwartz, manager of NASA's Center for Near-Earth Object Studies -- the threat this eight-kilometer comet posed to the survival of the human race was unthinkable. The 150-million-year reign of the dinosaurs ended when an asteroid impact generated more than a billion times the energy of an atomic bomb....

"Describes asteroids, comets, and meteoroids, including what they are and how scientists research them"--

'Deep Impact' is the story of the world's reaction to a death sentence. As a comet approaches the earth which might not be destroyed or divertedbefore it reaches earth, each individual struggles in the face of extinction to find what most matters to him or her.