Sarah Rugheimer

And then that eventually through gravity coalesced into stars and dah, dah, dah, dah, dah, you get galaxies.

But this is just hanging out in space.

And that's kind of weird.

No, our galaxy is 100,000 light years.

Well, the observable universe is about 92 or 93 billion light years in diameter.

All right, fine, okay.

The universe itself has been expanding.

It's pretty close.

Exactly.

No, it's pretty close, yeah.

100%.

That is totally fine.

I'll send you my exam that I give my first year undergrads and then you can you can give it a try.

Please don't.

You know, my husband did that.

He actually got a 50 percent, which was the average of the class, despite not having taken my class, which I don't know, tells you something about our generation or a new generation.

We can use telescopes to look for neutral hydrogen.

It's just usually we're not looking in parts of the sky for these sorts of objects that don't have light from stars.

We definitely can see neutral hydrogen in other parts of the universe or in our galaxy, and we try to map that out.

And I think in this case, it was just, uh, they were, it kind of was just found by accident.