| A | B |
|---|
| Molecular Cloud | Stellar Nursary - cloud of dust and gas |
| Protostar | Fast spinning hydrogen cloud not yet hot enough to fuse |
| Main Sequence Star | Life of a star from fusion of hydrogen to first stage of death |
| Red Giant | First Stage in Death of a "sun sized" star |
| Red Giant | Cooling star that expands hundreds of times the original "sun sized" star size |
| Planetary Nebula | 2nd Stage in Death of a "sun sized" star |
| White Dwarf | Small, highly dense star that no longer fuses to give off light |
| White Dwarf | One of the final stages in death of a "sun sized" star |
| Type I Supernova | One of the final stages in death of a "sun sized" star |
| Type I Supernova | the explosion of a white dwarf in a binary (two star) system |
| Supergiant | First Stage in Death of Large stars |
| Supergiant | Cooling star that expands hundreds of times larger than the original (large) star size |
| Type II Supernova | the explosion of a supergiant |
| Neutron Star | Pulsar - pulsating radio waves; the dense collection of neutrons left over after a type II supernova |
| Black hole | matter so massive and dense that nothing can escape it; the result of a type II supernova having a core more than 3 times the size of our sun |
