Mars, Earth's outer neighbor, is the fourth planet from the Sun. Mars' bright appearance and reddish color stand out in the night sky. Impressive surface features such as enormous volcanoes and valleys are frequently obscured by huge dust storms.
Visit another planet: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Dwarf Planets
This intricate ammonite pendant is available in our online store, along with other jewelry, minerals, fossils, classroom materials, and household items.
Perspectives on Earth and Space Science Education
Real Climate: climate science from climate scientists
Star Stuff: science news from an astronomer's perspective
