Did you know scientists can tell the age of an asteroid by looking closely at its craters? This final lesson of a six-part series focuses on two asteroids, Gaspra and Ida, in order to demonstrate the concept of dating asteroids. Scholars...

Here's a handy two-page reference that briefly identifies major Greek and Roman mythological figures.

The presentation starts with the scientists who made discoveries about our solar system: Ptolemy, Copernicus, Galileo, Brahe, Kepler, and Newton. It also covers the planets, inner, outer, and Pluto, satellites, and an in-depth discussion...

From Aphrodite to Zeus, here you'll find a PowerPoint presentation identifying basic information about 15 Greek gods and goddesses.

Are outer planets just like inner planets? Nope! The outer planets are much more spread apart than the inner planets. An informative PowerPoint presentation shows why this is true as well as facts about the individual planets in the...