The key observations that led thescientists to know about the location of the Sun within Milky Way.

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Chapter 19, Problem 39EAP

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To Discuss: The key observations that led thescientists to know about the location of the Sun within Milky Way.

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Try Now ... .... Listed below are some distances from Earth to other objects in the Milky Way galaxy. Convert each distance to light-years. (Each of these distances is less than one light-year. For an added challenge, convert each distance to light minutes or light seconds.) 1. The distance from Earth to the Moon is about 384,400 km. How many light-years is this? 2. The distance from Earth to Mars is about 784,000,000 km. How many light-years is this? 3. The distance from Earth to Pluto is about 5,750,000,000 km. How many light-years is this?

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