The table below shows the distances from earth to several different objects in the universe. distances are shown in light years (ly).
objectdistance from earth (ly)alpha centauri a (star)4.4andromeda (galaxy)2.5 millionbetelgeuse (star)640
it would take about 77 million years for the fastest human-made spacecraft to reach alpha centauri a. about how long would it take such a spacecraft to reach the andromeda galaxy?
a.
many trillions of years
b.
2.5 million years
c.
64.0 million years
d.
a few thousand years
Answers: 2
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The table below shows the distances from earth to several different objects in the universe. d...
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