How do long range space probes not crash into things?

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How do long range space probes like Voyager 1 anticipate traveling through space for hundreds or thousands of years without hitting something, getting pulled into something’s gravity and crashing, etc?

In: Planetary Science

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Anonymous 0 Comments

You know those dramatic scenes in sci fi movies where the heroes have to fly through an asteroid field without hitting anything?

In reality, in an asteroid field each rock is 500,000 miles away from the next one. And that counts as “close together”. 

Space is really, really, really big. And almost completely empty. 

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