Challenge Yourself. Be Awesome.

See All Challenges

Challenge

Guesstimate the number of stars in the universe

Your Challenge
Use math and intelligent guessing to come up with the number of stars in the universe. Show us your process. ... Read more

4 Experience Points

Astronomy

+2 xp

Mathematics

+2 xp
Gallery
986 Posts
awesome
newest
Do It Yourself
0 Posts

Post your project!

Our Mission

Any kid, anywhere, can learn any skill.

Contact Us
DIY for School
Buy Skill Badges

Courses

PhotographyStrange ScienceDrawing BootcampInvent Your Own MachinesBuild Anything With LEGOMinecraftSecrets of DrawingSee More

Support

Terms of ServicePrivacy PolicyCommunity GuidelinesFAQ