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Astro 1050     HW#3 Solutions
• Question 1.  While all of the following are discoveries of Galileo, which of the four listed is NOT one which DIRECTLY contradicts the "Aristotelian" view of the heavens.
•a.The discovery of "imperfections" on celestial bodies, such as mountains and valleys on the moon and changing sunspots on the sun.
•b.The discovery of the phases of Venus, ranging from new to crescent to "quarter" to gibbous to full.
•c.The discovery that the Milky Way is actually composed of a large number of very faint stars.
•d.The discovery of four moons orbiting Jupiter.
Reminders:  Exam on Friday.  Bring a blue 5 answer bubble sheet, a pencil, a calculator, and your wits.