Question:

Using satellite telescopes how can they navigate though the solar system without any obstacles?

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how can a flying object navigate to other planets and not get

pulled by other planets gravitational pull

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  1. Mostly by staying away from them. Space is awfully big and all of the stuff in the solar system doesn't really amount to much considering the distances involved. They navigate simply by knowing where all the planets are going to be when the spacecraft goes by. Sometimes they purposely fly near a planet like Jupiter to get a slingshot effect and speed up the spacecraft. Even passing through the asteroid belt doesn't really pose much danger since the chance that an asteroid and the spaceship will occupy the same space at the same time are pretty small, even though there are tens of thousands of asteroids out there. Gravity decreases as the inverse square of the distance, ie twice as far means only a quarter of the gravity. By calculating the distance to nearby planets (if any) they can calculate the effect on the spacecraft and then decide when to burn the engine for course corrections. This used to be done by guys with slide rules (remember them?) but now high-speed computers do all that.


  2. They do get pulled by other planets' gravitation. In fact, we use the gravitation of the other planets to navigate  from one stellar body to the next, such as slingshotting around the moon or Neptune, for instance, to give satillites more velocity. If it weren't for other planet's gravitational pulls, it would perhaps take even longer to get satillites to the far reaches of our solar system.

  3. It is no problem at all. You are not fully aware of how big and empty space is and how far apart the planets are and how small they are compared to their size, or you wouldn't even ask. The problem is not missing all the planets and asteroids, the problem is finding one and controlling your path exactly enough to get to one without missing it completely.  

  4. Paul W is right!  In fact, it was the alignment of several outer planets that's why they choose to launch voyager when they did. They figured out how to use the alignment of the planets and their gravity to their advantage and to sling-shot the probe faster.  

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