At what distance does Earth's gravity no longer pull on an object? © Getty Images

At what distance does Earth no longer pull on an object?

Gravity is a force that obeys an ‘inverse square law’ and, strictly speaking, the Earth’s gravity will always pull on an object, no matter how distant.

Asked by: Tim Redgood, Ashford

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Strictly speaking, the Earth’s gravity will always pull on an object, no matter how distant. Gravity is a force that obeys an ‘inverse square law’. So, for example, put an object twice as far away and it will feel a quarter of the force. Put it four times further away and it will feel one-sixteenth the force. But, however far away the object is, it will always feel the pull of gravity, even though it might be vanishingly small.


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