A reappearing supernova offers a new measure of the universe's expansion

Stony Brook University professors helping determine size of universe - Newsday

Quasar Absorption Line Group at NMSU

A reappearing supernova offers a new measure of the universe's expansion

Supernovae, an accelerating universe and the cosmological constant

NASA SVS

16 Captivating Facts About Supernova Explosion

Kepler's Supernova: Huge 17th-Century Star Explosion Comes into Focus

A fine-tuned universe may be controversial but can't be ignored

What is a supernova?

Wake of nearby supernova hints at explosion's origins

If the universe is always expanding, that means that there are places that the universe hasn't reached yet. What is there before the universe gets there? - Quora