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This is CBS on the world. I'm John Paster.

Bob Zimmerman, he keeps the website behind the black.

It is happy birthday anniversary of 15 years of Behind the Black.

Your donations and subscriptions, most welcome, most helpful,

because there are stranger things in the universe than we imagine, such as interstellar objects.

This is the second time I've had to deal with this challenging origin of where something comes from the outside and races through our solar system.

They apprehended one a couple of years ago, and there was speculation

it was a spaceship or human made or something made. This new one, I haven't heard that,

but here's Bob to tell us. Bob, what is an interstellar object and is this a spaceship? Good evening,

too. Good evening, John. This is actually the third that's been discovered, John.

We tend to forget, the comet Borisov was also an interstellar object a few years ago.

That was the second interstellar object picked up.

The first was Umu Amua, and we don't know what it was, but it did have elements that

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