The TFR was initially a three nautical mile radius from the site and extended from the surface to 3, 000 feet.

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He had stretched out his stockinged foot and dipped his big toe into the water, moving it slowly back and forth, his leg fully extended, for he could only just reach far enough to touch the surface.

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In the extended mission, Cassini could come as close as 24km (15 miles) from the moon's surface.

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