Astronaut David Scott Galileo’s Gravity Experiment: What's Heavier On The Moon? [video]

Because of air resistance, a hammer will fall quicker than a feather here on the Earth. That’s a given. But, on the Moon where there’s no and a feather what happens between a hammer and a feather? 

Astronaut David Scott performs a Galileo experiment’s while on the Moon during Apollo 15 mission.