Course Beginner-friendly
How space actually works
Getting to space isn't about going up — it's about going sideways, fast. See why orbit is just falling and missing the ground, why astronauts float, and how to tell a real space claim from a sales pitch.
Almost everything people believe about space is a little bit wrong. Space isn't far — it's about an hour's drive straight up. Astronauts aren't beyond gravity — they're falling, constantly, and missing the Earth. Rockets don't push against the air — they'd work better without it. This course takes the lid off the machine: why leaving the ground is so hard, what an orbit really is, how anything survives the vacuum, and how impossibly far it all is. Not a highlight reel and not a sci-fi pitch — the physics made plain and the distances stated honestly.
Module 1 — Getting off the ground
Why space is so hard to reach
Explain why reaching space is about speed, not altitude — about 28,000 km/h sideways.
How a rocket actually moves
Explain how a rocket moves by throwing mass, and why it works in vacuum.
Why a rocket is almost all fuel
Explain the rocket equation, and why staging is what makes orbit reachable.
Module 2 — Orbit: falling forever
What an orbit really is
Explain that an orbit is falling sideways and missing the ground (Newton's cannonball).
Why astronauts float
Explain that astronauts float from continuous free fall, not absent gravity.
The backwards rule of orbits
Explain why you slow down to catch a craft ahead of you in orbit.
Different orbits for different jobs
Explain why altitude sets the orbit — geostationary hovers, the ISS laps every 90 minutes.
Module 3 — Surviving out there, and seeing across it
The vacuum, the heat, and the cold
Explain why vacuum is the instant danger, and why dumping heat is the real problem.
Why getting to Mars takes the long way
Explain a transfer orbit, and why a Mars launch window comes only every 26 months.
How we see the universe
Explain why looking out is looking back in time, across the whole spectrum.
How far away everything is
Explain the light-year, and why distance — not engineering — is the real barrier to the stars.