Earth’s Cosmic Engine
Like Duolingo, but for Earth’s Cosmic Engine. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
Free during early access · No credit card · iPhone & Android

You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo turns Earth’s Cosmic Engine into a game you actually finish. Levels, streaks, and quick quizzes that make it stick. Five minutes a day.
Where Earth’s Cosmic Engine takes you
Discover how our planet functions as a single, interconnected machine. From the deep ocean currents to the solar winds that shape our atmosphere, learn to read the signs of Earth's complex systems.
- 1
Reading the Planet's Pulse
- Predicting Storms by Cloud Shapes
- How Ocean Temperatures Drive Local Weather
- Identifying Rock Layers as Time Capsules
- Using Stars to Map Your Position
- 2
The Hidden Gears of Change
- The Deep Sea Conveyor Belt
- How Tectonic Plates Recycle the Crust
- The Greenhouse Effect: Earth's Thermal Blanket
- Jet Streams: The High-Altitude Rivers of Air
- Solar Cycles and Their Impact on Satellites
- The Chemistry of Ocean Acidification
- 3
Origins and Cosmic Connections
- How the Moon Stabilizes Earth's Wobble
- The Magnetic Shield Protecting Our Atmosphere
- Tracing Water from Asteroids to Our Oceans
3 sections · 13 units · 26 levels. Built to play, not to enroll.
Here's what playing it feels like
A real question from this course. Take your best guess.
You spot thin, wispy clouds high in the blue sky. What do these 'scouts' usually represent?
Get it right to open this lesson and 25 more in the app.
You pick the voice
Earth’s Cosmic Engine is taught in the The Bestie style: your friend who just gets it. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
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Start Earth’s Cosmic Engine today.
Download Tomo, search Earth’s Cosmic Engine, and play your first lesson in under a minute.