1.The Hidden Lives of Galaxies Jim Lochner, USRA & NASA/GSFC2. What is a Galaxy ? Solar System Distance from Earth to Sun =93,000,000 miles =8 light-minutes Size of Solar…

Slide 1 Galaxies and the Universe Spectra of Science Amole 2013 Slide 2 The Hierarchy Universe Galaxy Stars Solar System Planet World Continent Country State City Slide 3…

Galaxies Galaxies A galaxy is made of billions of stars, dust, and gas all held together by gravity. Galaxies are scattered throughout the Universe. They vary greatly in…

Galaxies Objectives Identify three types of galaxies. Describe the contents and characteristics of galaxies. Explain why looking at distant galaxies reveals what young galaxies…

Catalyst Catalyst 1. Explain what would happen if your twin traveled to a nearby star at close to the speed of light. What would happen when he or she came back to earth?…

Galaxies GALAXIES Do Now Take a sheet of paper and answer the following questions. What are two kinds of visible light telescopes scientists use to gather information from…

Galaxies Galaxies A galaxy is made of billions of stars, dust, and gas all held together by gravity. Galaxies are scattered throughout the Universe. They vary greatly in…