Brian Cox visits NASA’s Space Power Facility in Ohio to see what happens when a bowling ball and a feather are dropped together under the conditions of outer space.
This is a pretty great video, except for the irritating “science is so awesome!” sniveling Brit hipster voice. Just skip to 2:50 to see the good part. You can also pop in at 1:25 if you want to see the same experiment WITH air.

Impressive. Even though I was expecting the other Brian Cox.
It’s pronounced AL-Lou-Men-Um, Not AL-Lou-Minnie-Um!
Sorry, British pronunskiation always throws me off a little bit.