STEM Challenges
Explore fun and educational challenges across math, science, engineering, and coding!
Showing 6 of 209 challenges
Special Relativity
Space ExplorerIn 1905 a 26-year-old patent clerk named Albert Einstein turned physics upside down. Discover why the speed of light is the ultimate speed limit, why ...
Orbital Mechanics Basics
Space ExplorerAn orbit is one of the most elegant ideas in physics — an object in perpetual free fall that keeps missing its target. Explore how spacecraft engineer...
The Doppler Effect and Spectroscopy
Space ExplorerThe light from stars is like a coded message — it tells us what stars are made of, how hot they are, how fast they are moving, and whether they have p...
Kepler's Three Laws of Planetary Motion
Space ExplorerBefore Newton understood why planets orbit the way they do, Johannes Kepler discovered how — purely from decades of painstaking data. Explore the thre...
Newton's Laws and Universal Gravitation
Space ExplorerIsaac Newton changed humanity's understanding of the cosmos forever. Discover the three laws of motion that govern everything from falling apples to o...
Commercial Spaceflight and What Comes Next
Space ExplorerA new era has arrived: private companies now launch astronauts, plan lunar landers, and dream of Mars. Explore how SpaceX, Blue Origin, and others are...