| The appearance of this supernova was also recorded in carvings made by the Anasazi Indians of the American Southwest. |
| This reveals how fast the universe was expanding at the time the supernova explosion occurred. |
| For nebulas there are emission nebula, reflection nebulas, planetary nebulas, dark nebulas and supernova remnants. |
| The Sun agglomerated from a huge cloud of gas and dust, which was largely the debris left from previous expired stars and supernova explosions. |
| A stellar-mass black hole forms when a heavy star collapses under its own weight in a supernova explosion. |
| The supernova observations call out for some gravitationally repulsive substance to drive the cosmic acceleration. |
