38 free courses & lectures available for Astronomy

Galaxies, part 1: Crash Course Astronomy #38

by CrashCourse on Youtube Youtube
Duration: 0.2 hours
The Milky Way is our neighborhood in the universe. It's a galaxy and there are many others out there. Galaxies contain gas, dust, and billions of stars or more.
  
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Tons of awesome courses in one awesome channel! Nicole Sweeney teaches you sociology, Carrie Anne...

Gamma-Ray Bursts: Crash Course Astronomy #40

by CrashCourse on Youtube Youtube
Duration: 0.23 hours
Gamma-ray bursts are not only incredible to study, but their discovery has an epic story all its own. Today Phil takes you through some Cold War history and then ...
  
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Tons of awesome courses in one awesome channel! Nicole Sweeney teaches you sociology, Carrie Anne...

Deep Time: Crash Course Astronomy #45

by CrashCourse on Youtube Youtube
Duration: 0.25 hours
As we approach the end of Crash Course Astronomy, it's time now to acknowledge that our Universe's days are numbered. Stars will die out after a few trillion ...
  
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Tons of awesome courses in one awesome channel! Nicole Sweeney teaches you sociology, Carrie Anne...

Parsec definition | Stars, black holes and galaxies | Cosmology & Astronomy | Khan Academy

by Khan Academy on Youtube Youtube
Duration: 0.13 hours
Parsec Definition. Created by Sal Khan. Watch the next lesson: ...
  
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Khan Academy is a 501(c)(3) nonprofit organization with the mission of providing a free, world-cl...

Supernova (supernovae) | Stars, black holes and galaxies | Cosmology & Astronomy | Khan...

by Khan Academy on Youtube Youtube
Duration: 0.2 hours
Supernova (Supernovae). Created by Sal Khan. Watch the next lesson: ...
  
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Khan Academy is a 501(c)(3) nonprofit organization with the mission of providing a free, world-cl...

Milankovitch cycles precession and obliquity | Cosmology & Astronomy | Khan Academy

by Khan Academy on Youtube Youtube
Duration: 0.22 hours
How changes in Earth's rotation can effect Earth's seasons and climate. Created by Sal Khan. Watch the next lesson: ...
  
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Khan Academy is a 501(c)(3) nonprofit organization with the mission of providing a free, world-cl...

Potassium-argon (K-Ar) dating | Cosmology & Astronomy | Khan Academy

by Khan Academy on Youtube Youtube
Duration: 0.18 hours
How K-Ar dating can be used to date very old volcanic rock and the things that might be buried in between. Created by Sal Khan. Watch the next lesson: ...
  
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Khan Academy is a 501(c)(3) nonprofit organization with the mission of providing a free, world-cl...

Newton on the Ganges: Asiatic Enlightenment of British Astronomy

by Stanford on Youtube Youtube
Duration: 1.45 hours
Historian Simon Schaffer, the 2008 Harry Camp Memorial Lecturer, spoke on Newton's fascination with discoveries about ancient Indian philosophy and ...
  
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Located between San Francisco and San Jose in the heart of Silicon Valley, Stanford University is...
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