STEM Challenges
Explore fun and educational challenges across math, science, engineering, and coding!
Showing 6 of 209 challenges
Rocky Worlds: Mercury and Venus
Space ExplorerThe two planets closest to the Sun are worlds of extremes. Mercury is battered and scorched, while Venus is hidden under a crushing blanket of acid cl...
Asteroids, Comets, and Meteors
Space ExplorerNot everything in space is a planet or moon. Discover the smaller — but fascinating — residents of our solar system: rocky asteroids, icy comets, and ...
Dwarf Planets
Space ExplorerFor decades Pluto was considered the 9th planet — until astronomers discovered it was just one of many icy worlds in the outer solar system. Find out ...
Inner and Outer Planets
Space ExplorerOur solar system has two very different neighborhoods — a rocky inner zone and a giant-filled outer zone. Explore what divides them and what makes eac...
The Sun and Orbits
Space ExplorerThe Sun is the star at the center of our solar system and the gravitational anchor that keeps every planet in its path. Discover what the Sun is made ...
How the Solar System Formed
Space ExplorerWhere did the Sun, Earth, and all the planets come from? Journey back 4.6 billion years to witness the incredible birth of our solar system from a swi...