And then, of course, the distances are important because they tell us how much heat they're getting from their star and whether they have liquid water on them.

You know, the same way that people study galaxies or stars, planets are these... and planetary systems are these very interesting dynamical systems, and we wanna know, just like we wanna know how galaxies form and how the universe formed and how stars form, we wanna know how planets form.

And, you know, we can look at all the different types of stars and understand something about their evolution.

And I...

For me, it was very interesting just to think about planetary systems as sort of this new class of object.

[laughs]

Yeah.

Yeah, I know.