Use this table of magnitudes to determine the following. (a) What is the ratio of the distance to the nearest galaxy to the diameter of the Milky Way Galaxy? This is typical of the distances between galaxies as compared to their diameters. X Your answer cannot be undekstood or graded. More Information (b) What is the ratio of the diameter of the Earth to the Earth's distance to the Sun? dE unsp Check the values you input for the distances. (c) What is the ratio of the diameter of the Milky Way to the Earth's distance to the Sun? dsun Enter a number.

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Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.