Hidden lives v2
Galaxies and the Universe Spectra of Science Amole 2013.
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.
Galaxies. Objectives Identify three types of galaxies. Describe the contents and characteristics of galaxies. Explain why looking at distant galaxies.
Catalyst
GALAXIES
Galaxies
