Supernovae and Cepheids

NGC 3370-credit NASA, A. Riess, Hubble Heritage Team

NGC1309-credit NASA, A. Riess, Hubble Heritage Team

Most Distant Supernova Seen

SN 1997ff
credit-NASA, A. Riess, R. Gilliland

Distant Supernovae

Credit-NASA, A. Riess

Credit-NASA, A. Riess

Hubble