Start with us. Despite knowing basically where we came from, what our ancestors looked like, and how their DNA would look, we're still fascinated to find links and steps along the way. I'm still intrigued by bugs and bacteria, despite being much more advanced and sophisticated. We still call our dogs "smart," and enjoy when they communicate with us in their simple ways.
Anything that goes into space is probably curious. You don't even start a space program to look or travel elsewhere if you're not interested in what might be out there!
How could you not be interested in an entirely different biosphere? In exploring among plants and animals, the likes of which you'd never seen? If you lack that kind of curiosity, you'd just stay home in the first place. We're all just speculating of course, but it's an interesting topic.