Galileo did experiments to prove that heavy objects and lighter objects will fall at the same rate. This meant that, taken to extremes, a hammer and a feather should fall at the same speed. However, a feather tends to float slowly because of air resistance. During the Apollo 15 moon mission in 1971, astronaut David Scott had the perfect opportunity to prove Gaileo's point, because there was no air to cause drag on the feather. And some falcon on earth never knew how far a part of him flew. How about that? -via reddit
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The hammer and feather were cleared by NASA. But during the same mission, the crew got into trouble for carrying postal covers into space to sell later. John Young famously got into trouble for smuggling a corned beef sandwich onto a Gemini mission in 1965. Alan Shepard actually cleared the golf club and balls.
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I remember that. Was it one of those things where the astronaut snuck it on board? Like Alan Shepard and a golf ball.
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