There are eight planets in orbit around our Sun. These planets form our solar system. The eight planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. There are also rocks, moons, comets, and other objects going...

Resource explores the solar system, with an in depth discussion of each of the planets and their properties.

Find out about our closest star, the sun. Read interesting facts and other trivia about our planet's source of energy.

Basic facts about the planet Venus including its temperature, its atmosphere, and its volcanoes. Includes a discussion question on temperature, with facts, and the answer. A linked page covers similar material in a "Level 2" version, and...

Practice Space Math! Math is the cornerstone of space travel. Familiarize yourself with all the ways math can help you study the solar system. Practice math problems in areas such as speed of light, the distance of planets to the sun,...

Discover interesting facts about Venus, the hottest planet and the second planet from the Sun.