Science · Interactive demo
Why do stars twinkle but planets don't?
Grow a point of starlight into a planet's disk and watch the twinkle average away. A simplified model of atmospheric scintillation.
Created by ExplainerTools.
What you’ll explore
This interactive demo gives you a visual way into science. The key ideas include astronomy, stars, planets, atmosphere.
Continue learning
- Why does Mars seem to move backward? by ExplainerTools
- Moon by Bartosz Ciechanowski
- Why does the Moon change shape? by ExplainerTools Originals
- Earth and Sun by Bartosz Ciechanowski
- Why is the sky blue but sunsets red? by ExplainerTools
- Roman Space Telescope, simulated by Konstantin Saifoulline
See how the world works.
Explore interactive ideas in space, science, math, and more. Try a demo, read an interactive article, watch a short video, and follow what makes you curious.
New Originals
Change one thing and see why.
Three new models, each with a 30-second film. Watch the question, then play with the answer.
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