Wikipedia:Sandbox
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A sealed, inflated basketball at sea level here on earth is experiencing a pressure of 14.7 pounds per square inch pushing against its surface. So, for the basketball to inflated to the point where it would bounce, let's say that it would have to be inflated to more than sea level pressure, for the sake of a round number, we'll call it 25 psi. (The NBA regulations say that a basketball must be inflated to 7.5 to 8.5 psi, so that really works our to 22.2 - 23.2 psi at sea level).
If that inflated basketball was attached to an anchor and dropped into the depths of the Mariana Trench, more than 35,000 feet beneath the surface, it would experience a pressure of over 16,000 psi. It would be crushed to the size of a marble and implode long before it got to the bottom.
If that same basketball, inflated to the same 25 psi, were to be dropped onto the surface of the moon, where there is no atmosphere, it would experience a pressure of so close to ZERO psi that it would take very sensitive instruments to measure the difference between it and an absolute vacuum.
If the fill valve of the basketball would work (not leak, as a leak would act like a rocket to propell it) in the moon's conditions, the basketball would explode as soon as it was removed from the protection of the spacecraft that carried it there.