Get the facts on Venus. Resource offers a variety of satellite images and facts about the structure and features of Venus.

A basic overview of the planet Venus. Links to information about the other planets and objects in the solar system are included.

In ancient times only five planets were known: Mercury, Venus, Mars, Jupiter, and Saturn. Learn about Greek astronomer Ptolemy's theory for the solar system that was to survive for fourteen centuries.

Students explore Mercury and Venus, the first and second planets nearest the Sun. They learn about the planets' characteristics, including their differences from Earth. Students also learn how engineers are involved in the study of...

A detailed overview of the history, mythology, and current scientific knowledge of each of the planets and moons in the solar system.

Enter our solar system to interact with the planets, moons, asteroids, meteors, and more. Investigate with NASA scientists and explore missions related to space exploration. Read facts, compare statistics, look through resources, and...