Toss the Space Cat!
See the astronauts.
See the space kitty.
See the astronauts throw the space kitty.
See the space kitty completely wig out in zero-G.
Laugh. Repeat.
(Yes, I'm aware that the cat probably detests the lack of gravity with a burning passion, and I do feel bad for the cat, except that I'm laughing too hard to care. Sorry, pussycat...)