Hitting the moon with hammers

Nasa's plans were weird, if you ignored the politics that is. Addressing the science, sort of.

Clean skin

From Callous, you may think your skin is clean, but scrub as you like you'll never get rid of the bacteria. Even if you get rid of the surface ones, your inner bits probably have more bacteria than human cells. This works because bacteria are a lot smaller.

Can't remember the words

It's a really bad pun, but it's the best I have. Can't remember the words from Web Donuts.