There is a thing called 'escape velocity'. Basically, it is the precise velocity required for an object(rocket) to escape another object's(planet) gravitational field.
The idea is, if the object(rocket) is travelling under its escape velocity, the ever-decreasing gravitational field felt from the other object(planet) will still be just enough to stop the moving object(rocket), and pull it into a return dive.
If the object(rocket) is travelling at a velocity higher than its escape velocity, it will be able to continue moving outward to infinty despite the pull from the other object(planet).
So, for the question of crunch or no crunch, I suppose it would depend on how much mass the collective universe has, and at what velocity all of its peices are flying out at.
This message has been edited by SoulSlay, 08-21-2005 02:24 AM
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