8. Space Physics

• Black dwarf

  1. Nebula - dust and gas
  2. Protostar - due to gravity dust and gas is pulled together
  3. Fusion of hydrogen nuclei starts emitting a lot of energy
  4. Main sequence star - lasts billions of years, Hydrogen is fused to form helium
  5. Hydrogen begins to run out and form a red giant.
  6. This then will become a white dwarf by getting rid of its outer layers and cool down to form a black dwarf
• Black hole

  1. Nebula - dust and gas
  2. Protostar - due to gravity dust and gas is pulled together
  3. Fusion of hydrogen nuclei starts emitting a lot of energy
  4. Main sequence star - lasts billions of years, Hydrogen is fused to form helium
  5. Hydrogen begins to run out and form a super red giant.
  6. These initially glow brightly. Then, they will explode into a supernova.
  7. The supernova will get rid of its outer layers of dust and gas and will from a black hole.
• There is so much about the universe that scientists do not understand, and they are constantly trying to find out more. They have discovered dark mass and dark energy but don't know much about it.