Documents Astronomers, Theories, and Galaxies! Whirlpool Galaxy, M51 Sketch: 1845 (ground telescope) Whirlpool...

Slide 1 Astronomers, Theories, and Galaxies! Whirlpool Galaxy, M51 Sketch: 1845 (ground telescope) Whirlpool Galaxy, M51 Hubble Telescope: 2001 Slide 2 History of Astronomy…