Physics

Space & cosmology

2 free resources, hand-picked and sorted so you can find the right fit for your level and time.

Relativity Materials & matter
Topics in Physics
Mechanics3 Electricity & magnetism1 Heat & thermodynamics3 Quantum physics2 Relativity1 Space & cosmology2 Materials & matter1 Physics basics3 Waves, light & sound2 Nuclear & particle physics2
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A Website Sal Khan · Khan Academy

Astronomy - Khan Academy

The scale of the universe stars galaxies black holes the Big Bang and the fate of the cosmos with built-in practice. Beginner 2 – 10 hrs Video series Exercises No prerequisites View F YouTube Charles Bailyn · YouTube / Yale

Frontiers / Controversies in Astrophysics - Yale (Bailyn)

Yale ASTR 160 covering exoplanets black holes and dark energy designed for non-scientists. Beginner 10 – 40 hrs Lecture series No prerequisites View
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