STEM Challenges
Explore fun and educational challenges across math, science, engineering, and coding!
Showing 6 of 319 challenges
What Is a Star?
Space ExplorerStars are not just bright dots in the sky — they are massive spheres of plasma held together by gravity and powered by nuclear fusion. Discover what d...
The Sun's Future
Space ExplorerOur Sun is about halfway through its life. Over the next 5 billion years it will transform dramatically — expanding into a red giant, shedding its out...
Solar Storms and Space Weather
Space ExplorerThe Sun does not just shine steadily — it regularly hurls billions of tonnes of plasma and intense radiation across the solar system. Discover solar f...
Sunspots and the Solar Cycle
Space ExplorerThe Sun is not constant — it pulses with a roughly 11-year cycle of activity, producing more sunspots, flares, and storms at solar maximum. Discover w...
Nuclear Fusion: The Sun's Engine
Space ExplorerThe Sun converts 4 million tonnes of mass into pure energy every single second. Discover how Einstein's famous equation E=mc squared explains the Sun'...
Inside the Sun
Space ExplorerThe Sun is not just a ball of fire — it has a complex layered structure, from a core hotter than anything on Earth to an outer atmosphere millions of ...