Courses
A free four-year aerospace and STEM study track, built one course at a time.
These are free self-study courses written by Saving Planets. They follow the scope of first- to fourth-year college courses using open materials, but they are not university courses, carry no academic credit, and no school is involved.
Every course ties its subject to real work that helps people and nature, and links to free, reputable resources.
Year 1 · Freshman
- Live
General Chemistry I + Lab
Atoms, reactions, bonding, gases and energy, with three labs.
CHEM 110 + CHEM 110L
- Live
Physics I + Lab
Motion, forces, energy and momentum, with labs.
PHYS 110 + PHYS 110L
- Live
Calculus I
Limits, derivatives and an introduction to integrals.
MATH 110
- Live
Calculus II
Integration methods, sequences and series.
MATH 111
- Live
Intro to Aerospace Engineering
How aircraft and spacecraft are designed, built and flown.
AERO 101
- Live
Engineering Graphics / CAD
Technical drawing and 3D computer-aided design.
ENGR 120
- Coming soon
Intro Programming
Writing programs to solve engineering problems.
Year 2 · Sophomore
- Coming soon
Calculus III
Multivariable calculus and vector fields.
- Coming soon
Differential Equations
Modeling change: ODEs and their solutions.
- Coming soon
Physics II
Electricity, magnetism, waves and optics.
- Coming soon
Statics
Forces and moments on structures at rest.
- Coming soon
Dynamics
Motion of particles and rigid bodies.
- Coming soon
Mechanics of Materials
Stress, strain and how parts bend, twist and fail.
- Coming soon
Linear Algebra
Vectors, matrices and systems of equations.
- Coming soon
Circuits
DC and AC circuit analysis.
Year 3 · Junior
- Coming soon
Aerodynamics I
Lift, drag and airflow over wings.
- Coming soon
Thermodynamics
Energy, entropy, cycles and engines.
- Coming soon
Fluid Mechanics
How liquids and gases flow.
- Coming soon
Aircraft Performance
Range, endurance, climb and takeoff.
- Coming soon
Aerospace Structures
Light, strong structures for flight.
- Coming soon
Orbital Mechanics
Orbits, transfers and mission design.
- Coming soon
Numerical Methods
Solving engineering math on a computer.
- Coming soon
Probability & Statistics
Uncertainty, data and reliability.
Year 4 · Senior
- Coming soon
Propulsion
Jet engines and rockets.
- Coming soon
Flight Dynamics & Controls
Stability and control of aircraft and spacecraft.
- Coming soon
Spacecraft Design
Subsystems, power, thermal and mission requirements.
- Coming soon
Heat Transfer
Conduction, convection and radiation.
- Coming soon
Avionics & Systems Engineering
Flight electronics and managing complex systems.
- Coming soon
Capstone (aircraft or CubeSat)
A full design project from requirements to review.
- Coming soon
Sustainable Aviation
Cleaner fuels, efficient aircraft and lower emissions.