Kelly Holley-Bockelmann

Sorry, everybody.

But they're orbiting around this massive black hole.

The neat thing is that it traces space-time, like, all over the place.

The orbits are beautiful.

I wish that you could see them, and I wish that we will see them when we sleep.

You are precisely right.

The wonderful thing about Lisa is that it's opening this new window into the universe.

And every single time we open a new window in the universe, we discover something we've never expected.

And so I can tell you all day about what we think we'll detect.

And for sure, we think we're going to detect some stuff.

But the most exciting thing is that there's going to be something that we don't know that is in that window.

I can't wait.

They are – I like – well, they're called test masses, and I like to think of them as they are the things that are probing the space-time, meaning that their orbits and where exactly they are in space and time, they're the things that the lasers are measuring the distance between.

This is why y'all get paid the big bucks.

They're the rubber duckies.

They're super expensive and gorgeous rubber duckies.

I'm with you.

When I was new to this, I thought I was going to be brilliant and tell everybody, why not a sphere?

And someone took me aside and said, you can't machine spheres to the precision that you need a

a cube.