Yotsuba has never been to the moon before you know?! Only seen it! And the constellations and all the stars! You use a red torch when you're stargazing because it's easier to see the stars that way! Yotsuba knows lots and lots about space!

[... Wait what was that about serious? Ahem. Right. Serious stuff.] But this is serious Usagi, Yotsuba is going to space! [She's trying to force a straight face but the corners of her mouth keep twitching into a smile. It's dangerous, bad stuff might happen!! ... But space!]