The Milky Way Galaxy Is a Part of a Group

question 46

Multiple Choice

The Milky Way galaxy is a part of a group of galaxies called the Local Group. The proper distance from the Milky Way, on one side of the Local Group, to the M31 galaxy on the other side is approximately 2.4 × 10⁶ light-years. How long (in years) would it take a spaceship traveling at 0.999c to travel this distance according to travelers onboard?

• A)2.4 × 10⁶ years
• B)8.4 × 10⁵ years
• C)1.1 × 10⁵ years
• D)5.6 × 10⁴ years
• E)2.0 × 10⁴ years

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