The Life Cycle of the Cosmos
Move beyond basic planet-spotting to understand the grand mechanisms of the universe, from the birth of stars in gas clouds to the dark matter holding galaxies together.
Like Duolingo, but for The Life Cycle of the Cosmos. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
A short one: 12 levels across 2 sections, about 24 minutes end to end, roughly 5 days at five minutes a day. It moves through The Architecture of Our Neighborhood and Deep Space and Galactic Scale. It assumes you already know the basics.
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Key ideas in The Life Cycle of the Cosmos
- Self-gravity must be strong enough to overcome the structural rigidity of rock and ice
- The Frost Line is the distance where solar heat no longer vaporizes water ice
- Hydrostatic equilibrium allows a body to flow into a rounded shape based on its rotation
- Abundant solid ice beyond the line allowed planets to grow large enough to pull in gas
- Smaller asteroids lack the mass to generate the internal pressure needed for rounding
- Inner planets remained small because only rare heavy elements could stay solid
- The physical difference between a small asteroid and a world in hydrostatic equilibrium
- How the Frost Line determined planetary composition
- Orbital resonance occurs when two bodies exert regular, periodic gravitational tugs
- A major planet must be the primary gravitational force in its orbital zone
- Repeated alignment with a giant planet destabilizes and ejects smaller objects
- Dwarf planets like Pluto share their orbital space with many other Kuiper Belt objects
- Resonance can also 'trap' objects into stable groups, like the Trojan asteroids
- Extreme cold preserves the original chemical composition of the solar nebula
- The effect of orbital resonance on small body populations
- These regions contain 'planetesimals' that never merged into larger planets
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 gives The Life Cycle of the Cosmos the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
What happens to water compounds once they are located beyond the solar system's Frost Line?
Get it right to open this lesson and 11 more in the app.
How to learn The Life Cycle of the Cosmos, step by step
Go in order. 12 short levels across 2 sections, about 24 minutes in all, five minutes a day.
- 1
The Architecture of Our Neighborhood
- The New Solar System Map
- The Stellar Engine
- 2
Deep Space and Galactic Scale
- Galactic Structures and Dark Matter
- Nebulas and the Chemical Legacy
2 sections · 4 units · 12 levels. Built to play, not to enroll.
Questions about The Life Cycle of the Cosmos
How do I learn The Life Cycle of the Cosmos?
Go in order: start with The Architecture of Our Neighborhood, then Deep Space and Galactic Scale. On Tomo that's 12 short levels, about 24 minutes in all, played five minutes a day. Start free and play the first level in under a minute.
Is there a Duolingo-style app for The Life Cycle of the Cosmos?
Yes. Tomo works like Duolingo: short daily lessons, streaks and quick quizzes. The Life Cycle of the Cosmos is one of its free courses, and you can type any other topic to get a course of your own.
Is The Life Cycle of the Cosmos free?
Yes. The Life Cycle of the Cosmos is playable on Tomo's free plan, which doesn't expire. No credit card, no waitlist. Download the app and start your first lesson.
How long does it take to learn The Life Cycle of the Cosmos?
12 levels across 2 sections, about 24 minutes of play in total. It's built for five minutes a day, so you finish it a little at a time instead of all at once.
Do I need any background to start The Life Cycle of the Cosmos?
No. It's pitched at an intermediate level, so it starts where you are and builds up. If you can tap a phone, you can start.
Tomo is in ChatGPT
Tomo is also a ChatGPT plugin: the same playable courses, built and played inside your chat.
Add Tomo to ChatGPT- What to ask
- “Make me a Tomo course on black holes.” “Turn this chat into a Tomo course.”
- What you get
- Quick questions with instant feedback, hearts and stars, ready to play in about a minute.
- Where it goes
- No sign-up to start. Connect your Tomo account and your streak carries on in the app.
You pick the voice
The Life Cycle of the Cosmos is taught in the Professor style: clear, structured, thorough. 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 The Life Cycle of the Cosmos today.
Download Tomo, search The Life Cycle of the Cosmos, and play your first lesson in under a minute.