Winter, spring, summer, and fall—Earth experiences them all! But what about Mars? Scholars compare the planets in terms of distance, tilt, and rotation during a lesson from PBS's Space series. Great visual models of Earth and Mars, plus...

Provides a comprehensive look at the planet Earth including photos, how Earth got its name, and facts and figures about its size, seasons, moon, atmosphere, rotation, and lithosphere.

Compare the seasons on Earth and Mars with NASA imagery. Use this resource to visualize how the axial tilt of a planet influences its seasons and to compare data about seasonal changes on Earth and Mars. Support materials include:...