three steps to the hubble constant - nasa · universe hosting type ia supernovas 180,000 24–100...
TRANSCRIPT
Three Steps to the Hubble Constant
Earth
Cepheidswithin the
Large Magellanic
Cloud
Galaxieshosting
Cepheidsand Type Iasupernovas
Light red-shifted (stretched by expansion of space)
Distant galaxiesin the expandinguniverse hosting
Type Ia supernovas
180,000 24 –100 million 100 million–1 billion
LIGHT-YEARS