How come solar system probes never collide with asteroids?

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Is it just dumb luck that our probes (e.g. Juno, Voyager I, Voyager 2) never collide with even the smallest rocks in space? Is space in our solar system so void that the odds of a collision are so low? Does NASA (and other global space programs) have details about natural debris throughout our solar system that they can avoid collisions through navigation?

In: Physics

10 Answers

Anonymous 0 Comments

The average distance between asteroids in the asteroid belt is around 2.5 times the distance between the earth and out the moon.
So the asteroid belt do not look like movies at all.

The average size of the asteroids is relatively small if you were on one it is very unlikely that you would be able to see the light for any other.

If you were close to one of the large one you could likely see it but in most cases, you would not. The larges is Ceres with a 27% the diameter of the moon

[Ceres and Vesta, Moon size comparison](https://en.wikipedia.org/wiki/Asteroid#/media/File:Ceres_and_Vesta,_Moon_size_comparison.jpg)

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