The Universe
by kallum 11
1. The origin of the universe
1.1. The Big Bang theory
1.2. 15000 million years ago
1.3. Inportants astronomers :
1.4. Stheven Hawking
1.5. George Gamow
1.6. Edwin Hubble
2. Galaxies
2.1. Elliptical galaxies:
2.1.1. Spiral galaxies
2.1.2. Spiral barred galaxies
2.1.2.1. Milky Way
2.1.2.1.1. Orion arm
2.1.2.1.2. The solar system
2.2. Irregular galxies
3. Celestial bodies
3.1. The live of stars
3.1.1. Nebula
3.1.1.1. Average star
3.1.1.1.1. Red gigant
3.1.1.2. Massive star
3.1.1.2.1. Red supergigant
3.2. Other celestials bodies:
3.2.1. satelites
3.2.2. Asteroids
3.2.3. Comets
3.2.4. Meteorites
3.2.5. Shooting stars
4. The solar system:
4.1. 4568 millions years ago
4.2. Planets
4.2.1. Rocky
4.2.1.1. Mercury
4.2.1.2. Venus
4.2.1.3. The Earth
4.2.1.3.1. Rotation
4.2.1.3.2. Revolution
4.2.1.3.3. The Moon
4.2.1.4. Mars
4.2.2. Gas
4.2.2.1. Júpiter
4.2.2.2. Saturn
4.2.2.3. Uranus
4.2.2.4. Neptune
4.3. The sun
4.3.1. -