Richard Fidler

See, I've seen images of its sibling moon, Io, which looks like hell on Earth.

Io is like a sort of a molten chunk of rock, and that's because it's being squeezed by Jupiter's gravity like a tennis ball.

But the thing that makes Europa different, you're saying, is that it has water, which keeps like, I don't know, melting and refreezing and melting and refreezing around it.

So it looks smooth and kind of looks fine on the outside.

Mm-hmm.

So one of the reasons why it's so exciting that Jupiter has water, I know you're not a bioscientist, but this means that there just might, there's a possibility that life as we know it could exist below that.

Does that even, I know that's not your field, but does that excite you, Tracey?

No, I know.

This is my words.

I'm saying it just might.

It could possibly be.

It probably doesn't.

But there's the tiny...

Well, I'm allowed to hope for alien fish.

I'm not a scientist.

Alien fish, look, it's not impossible, is it?

It's not impossible.

Will you accept that?

I have no comment.

All right.