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Home > Science > Space > Comets

What's in the heart of a comet?
comet's nucleus, or heart, is the solid chunk of something in the center of its fuzzy coma. As it approaches the Sun, some of its surface boils off and creates a long tail.

Asteroids Pictures
Nasa's Asteroids Pictures

Near Earth Object Program
Upcoming Asteroid Close Approaches To Earth ...

Free Comet Worksheets
Comets secret message, fillinblanks for comets and Fun Facts about Comets

Video, learn about comets in the solar system.

NOVA Online - Doomsday Asteroid
A comet is composed of a nucleus, a coma, and two kinds of tails. The nucleus, which is typically only about 1 to 10 miles across...

NSSDC Photo Gallery: Comets
NSSDC Photo Gallery: Comets - A collection of images of comets