Cosmology and astronomy (Khan Academy)
Enroll here:Amongst one of the best astronomy online courses, in this course you’ll learn about the scale of the universe, stars, black holes, galaxies, geological and climate history of the earth, and about the life on earth and in the universe around you.
Though there’s not much information about this astronomy class online, from the reviews, it is quite evident that this is one of the free astronomy online courses available out there, and is certainly a great hit amongst the students. The point is if you love the universe, sky, and the planets, and they are teaching you all of it for free with this astronomy for beginners’ course, so why not give it a try?
Course summary:
- Scale of the universe
- Scale of earth, sun, galaxy and universe
- Time scale of the cosmos
- Light and fundamental forces
- Stars, black holes and galaxies
- Life and death of stars
- Quasars and galactic collisions
- Stellar parallax
- Earth geological and climatic history
- Plate tectonics
- Seismic waves and how you know earth's structure
- Earth's rotation and tilt
- Life on earth and in the universe
- History of life on earth
- Humanity on earth
- Measuring age on earth
Rating: N.A
Enroll here: khanacademy.org/science/cosmology-and-astronomy
