Cosmology (week 4)

Protostar→ the dust and gases are pulled together by their gravity

Red giants→ an average sized star that consumes hydrogen gas

Planetary nebulae→ when a red giant runs out of fuel its outer layers drift off and form a planetary nebula

White dwarfs→ when a red giant runs out of fuel

Red Supergiant→ a massive sized star uses its hydrogen and helium fuel and grows massive.

Stellar Nebula→ stars are formed inside a cloud of dust and gasses called a nebula

Average Star→ small stars have less hydrogen gas fuel and slowly consume it at this stage

Massive Star→ they have much more hydrogen gas fuel and rapidly consume this fuel to maintain its size

Neutron Stars→ is the collapsed core of a massive star

Black Hole→ after the supernova anything left of the star is collapses into a black hole which creates a gravitational pull from which nothing can escape.

Supernova→ When a red giant runs out of fuel it collapses into an enormous explosion called a supernova.