Transcript

[MUSIC PLAYING]

CHRIS HADFIELD:

Now everybody knows in space that no one can hear you scream because sound can't travel through the vacuum of space. But inside the space station, we constantly hear the hum and the whir of the fans and the pumps and the machinery. And the ongoing noise of the space station can really take its toll, which gives us all the more reason, maybe, to play a little music and cut the monotony. So on that note, I'll see you out with a tune. Till next time.

[PLAYING GUITAR]