00 — I start from zero
Read formulas, recognize symbols, use a calculator, understand units and orders of magnitude.
DELTA-SIERRA · SPACE ACADEMY
SPACE ACADEMY
From zero to the scientific knowledge needed to understand the work of astronauts, mission engineers and flight teams - without assuming prior knowledge.
Your progress is saved automatically on this device. You can also export it from the left column.
Two ways to learn
Guided pathway
Start at module 00 and follow the numbers.
I want to understand now
Jump directly to a question; prerequisites are introduced just in time.
The real formula, explained
Every symbol, number, unit, convention and operation must be explainable.
What Space Academy is not
This pathway does not grant a professional astronaut or engineering qualification. It makes the reasoning, calculations, systems and technical culture of spaceflight accessible.
Curriculum in learning order
01 — Useful mathematics
Fractions, percentages, powers, equations, trigonometry, vectors, derivatives and uncertainty - only when needed.
- In preparation
02 — Fundamental physics
Motion, mass, weight, force, energy, pressure, fluids, heat, rotation, electricity and waves.
- In preparation
03 — Useful chemistry
Atoms, molecules, H₂O, O₂, CO₂, CH₄, reactions, electrolysis, Sabatier, combustion and cryogenics.
- In preparation
04 — Rockets & engines
Thrust, mass flow, nozzles, rocket equation, staging, liquid engines, turbopumps, cycles, Raptor, Vulcain and Vinci.
05 — Orbits
Why satellites keep falling, ellipses, orbital speed, orbital elements, delta-v, Hohmann and rendezvous.
- In preparation
06 — Earth → Moon
Where to aim when the Moon moves, windows, translunar injection, corrections, Apollo navigation and return.
07 — Earth → Mars
Launch windows, interplanetary transfer, flight time, corrections, arrival and capture.
- In preparation
08 — Guidance, navigation & control
IMUs, gyros, stars, optical navigation, attitude, guidance algorithms and control.
- In preparation
09 — The spacecraft
Structure, power, thermal control, computers, secondary propulsion, mechanisms and onboard systems.
- In preparation
10 — Communications
Waves, frequency, Doppler, antennas, light-time, Deep Space Network and autonomy without real-time control.
- In preparation
11 — Entry, descent & landing
Entry energy, heat shields, corridors, parachutes, propulsion and heavy EDL.
- In preparation
12 — Survival
Air, water, CO₂, oxygen, food, ECLSS, hygiene, medicine and radiation.
- In preparation
13 — Living and working elsewhere
Habitats, EVA, vehicles, power, industry, ISRU and surface life.
- In preparation
14 — Design so it does not fail
Reliability, redundancy, common causes, FMEA, FDIR, maintenance, spares and rescue.
- In preparation
15 — Work as a mission team
Procedures, checklists, mission control, human factors, decisions and autonomy.
- In preparation
16 — Final missions
Complete case studies where the learner builds, calculates, critiques and defends a mission architecture.
- In preparation
Personal progress
No account is required. V0.3 stores started and acquired courses locally and lets you export/import a small JSON backup file. Optional server synchronization can be added later without changing the data model.