STEM Challenges

The Moon did not simply appear next to Earth — it was born from one of the most violent events in the history of the solar system. Discover the Giant ...

Earth is the only planet we know of with life. But what makes it so special? Explore the remarkable combination of conditions that turned Earth into a...

The thin blanket of air surrounding Earth does far more than give us oxygen to breathe. It shields us from radiation, burns up space debris, and keeps...

Earth never stands still — it is spinning and orbiting at the same time. These two motions are responsible for day and night, our seasons, and even wh...

Earth is the only planet we know of that supports life — but what exactly makes it tick? Dig into Earth's shape, structure, size, and surface as you b...