🌌 12. Astrophysics

Stars are born from collapsing clouds of gas and dust.

Main sequence stars fuse hydrogen into helium.

Red giants and supergiants are stars that have exhausted hydrogen.

White dwarfs are the remnants of low-mass stars.

Neutron stars are the remnants of high-mass stars.

Black holes are regions where gravity is so strong that nothing can escape.

The Hertzsprung-Russell diagram plots luminosity against temperature.

The Big Bang theory describes the origin of the universe.