STEM Challenges
Explore fun and educational challenges across math, science, engineering, and coding!
Showing 6 of 209 challenges
Red Giants and Stellar Swelling
Space ExplorerWhen a star like our Sun runs out of hydrogen in its core, it does not simply die — it transforms dramatically, swelling to hundreds of times its orig...
Life on the Main Sequence
Space ExplorerA star spends the great majority of its life quietly fusing hydrogen in its core. But how long that life lasts, and how brilliantly the star shines, d...
Star Clusters
Space ExplorerStars are social — they are born in groups from the same molecular cloud. Explore the two main types of star clusters, their very different ages and p...
From Protostars to Stars
Space ExplorerA star does not just switch on — it has to earn its glow over millions of years of contraction, heating, and eventually igniting nuclear fusion. Follo...
Nebulae
Space ExplorerNebulae are some of the most beautiful objects in the universe — glowing clouds of gas and dust that can mark the birthplaces or the graveyards of sta...
Giant Molecular Clouds and the Interstellar Medium
Space ExplorerThe space between stars is not empty — it is filled with a mix of gas and dust that becomes the raw material for new stars. Explore the interstellar m...