We Have Sent Several Spacecraft on Trajectories That Will Ultimately

We have sent several spacecraft on trajectories that will ultimately take them into interstellar space (Pioneer 10 and 11, Voyager 1 and 2, New Horizons) . How long will it take these spacecraft to travel as far as the nearest stars?

A) a few hundred years
B) tens of thousands of years
C) never, because they will rust and fall apart
D) about a thousand years
E) a few decades

Correct Answer:

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