Outer Space: Myths and Realities
Separate science fiction from cosmic reality by uncovering what outer space is actually like. Explore common misconceptions about zero gravity, planetary extremes, and the mind-bending physics that govern the universe.
Like Duolingo, but for Outer Space: Myths and Realities. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
25 levels across 3 sections, about 50 minutes end to end, roughly 10 days at five minutes a day. It moves through Unlearning Hollywood Space; The Solar System We Forgot to Learn; and Time, Light, and the Cosmic Unknown. It starts from scratch.
Free forever · No credit card · iPhone & Android
Key ideas in Outer Space: Myths and Realities
- Sound travels as vibrating waves through physical matter like air, liquid, or solid rock
- Outer space is a near-vacuum lacking the molecules needed to carry acoustic vibrations to human ears
- Human skin and blood vessels are elastic and tough enough to contain internal blood pressure in a vacuum
- An unprotected human loses useful consciousness in roughly 10 to 15 seconds due to rapid oxygen depletion, rather than exploding or freezing immediately
- Freezing rapidly requires conduction or convection, which both need physical molecules touching you to strip away heat
- In a vacuum, heat can only escape via thermal radiation, which is a comparatively slow cooling process
- Gravity at the altitude of the International Space Station is still nearly 90% as strong as it is on the ground
- Floating in orbit happens because the spacecraft and astronauts are falling around Earth at high forward speed, creating perpetual free fall
- Earth's atmosphere gets thinner and thinner smoothly as altitude increases
- Air molecules become increasingly sparse over hundreds of miles rather than vanishing at a distinct, sharp cutoff
- Going straight up without sideways velocity results in falling straight back down once engine thrust stops
- Orbiting requires traveling sideways fast enough that the curved path of falling matches the curvature of the Earth
- Low-Earth orbit requires a sideways speed of roughly 17,500 miles per hour
- Earth's gravity at the altitude of the space station is still about 90% as strong as it is on the ground
- Astronauts feel weightless only because they and the station are in continuous free-fall together toward Earth
- In the vacuum of space, there is almost no air resistance to slow a spacecraft down
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 Outer Space: Myths and Realities 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.
If a satellite exploded right next to you on a spacewalk, what would you hear?
Get it right to open this lesson and 24 more in the app.
How to learn Outer Space: Myths and Realities, step by step
Go in order. 25 short levels across 3 sections, about 50 minutes in all, five minutes a day.
- 1
Unlearning Hollywood Space
- Busting Common Space Walk Myths
- How Orbiting and Microgravity Actually Work
- 2
The Solar System We Forgot to Learn
- The Mind-Bending Emptiness of Space
- The Extreme Nature of Our Neighbors
- The Realities of the Sun and Earth's Orbit
- 3
Time, Light, and the Cosmic Unknown
- Telescopes as Time Machines
- The Bizarre Physics of Black Holes
- The Hidden Bulk of the Cosmos
3 sections · 8 units · 25 levels. Built to play, not to enroll.
Questions about Outer Space: Myths and Realities
How do I learn Outer Space: Myths and Realities?
Go in order: start with Unlearning Hollywood Space, then The Solar System We Forgot to Learn, then Time, Light, and the Cosmic Unknown. On Tomo that's 25 short levels, about 50 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 Outer Space: Myths and Realities?
Yes. Tomo works like Duolingo: short daily lessons, streaks and quick quizzes. Outer Space: Myths and Realities is one of its free courses, and you can type any other topic to get a course of your own.
Is the Outer Space: Myths and Realities course free?
Yes. Outer Space: Myths and Realities 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 Outer Space: Myths and Realities?
25 levels across 3 sections, about 50 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 Outer Space: Myths and Realities?
No. It's pitched at a beginner 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
Outer Space: Myths and Realities 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.
More Science on Tomo
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How Space Works
Make sense of the night sky, journey through our solar system, and uncover the grand forces that shape stars, galaxies, and the universe itself.
How the Cosmos Works
Unravel the mechanics of the universe from your own backyard to deep space. Discover why orbits work, how dying stars forged the elements in your blood, and what warped spacetime reveals about reality.
Navigating the Cosmos
Move beyond the names of planets and dive into the mechanics of space travel, the life cycles of stars, and the strange behavior of time and gravity in the deep universe.
Start Outer Space: Myths and Realities today.
Download Tomo, search Outer Space: Myths and Realities, and play your first lesson in under a minute.