Supernova Explosions: Death of Massive Stars

• explosions: SN 1987A -- neutrinos seen!, SN 1994D
  SN1572 (Tycho): Tycho's sketch in 1572; X-rays today
• ejecta: Veil nebula, Crab nebula
• compact cinders: Crab nebula X-ray zoom, Cas A neutron star, Guitar nebula--duck!

Supernovae and Cosmology

• supernovae as standard candles
• SNIa light curve movie
• Supernova cosmology campaigns
  • Supernova Cosmology Project
  • High-z Supernova Search
  • HST: GOODS
• SN Ia digital discovery via subtraction
  most distant examples

Illinois and Sky Surveys

• Dark Energy Survey
• Cerro Tololo site
• telescope
• camera
• first light two weeks ago!
• Large Synoptic Survey Telescope (LSST)
• site
• telescope
• camera

Relativity

Pre-Relativity

• prehistory: Aristotelian and Galilean spacetime, relativity
• the ether?
• Michelson & Morley experiment