Cosmology and astronomy | Science | Khan Academy
It's a great, big universe out there. In this section of Khan Academy, you'll learn about the brain-bending vastness of time and space. We go from plate tectonics here on Earth to entire galaxies and beyond.
Overzicht
Toegevoegd op
18 maart 2026
Vak & domein
physics · astrophysics-cosmology
Schooljaar
Klas 1 (brugklas)–Klas 4
Paginatype
Course
Inleiding
Cosmology, Astronomy, and Earth Science Curriculum
This page outlines the educational modules provided by Khan Academy covering physics, planetary science, and human history. Key topics include:
- Special Relativity:
- Foundational concepts: Light, the luminiferous ether, and the Michelson–Morley Experiment.
- Mathematical frameworks: Galilean transformations, Minkowski spacetime diagrams, and Lorentz transformations.
- Relativistic mechanics: Einstein’s velocity addition formula, time dilation, and frame of reference calculations.
- Cosmology and Stellar Science:
- Scale of the Earth, Sun, galaxy, and universe.
- The Big Bang theory and the expansion of the universe.
- Stellar evolution (life and death of stars) and stellar parallax.
- Geology and Earth Science:
- Plate Tectonics: Crust vs. lithosphere, mantle convection, divergent/convergent boundaries, and the formation of the Hawaiian islands.
- Earth Structure: Compositional and mechanical layers, the Earth's core, and the study of seismic waves.
- Orbital Mechanics: Earth's rotation, axial tilt, and the mechanics of seasons.
- Milankovitch Cycles: Precession, obliquity, and apsidal precession.
- History and Human Development:
- History of life on Earth and human evolution.
- Societal development: The rise of agriculture, writing, and "collective learning."
- Demographics and resources: Thomas Malthus’s theories on population growth and energy inputs in agriculture.
- Historical notation and future projections for 2060.
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