This is CVS, I on the world, I'm John Bachelor. Bob Zimmerman, he keeps the website behind the black.

We're going exploring, well actually, we're exploring what exists, asteroids with moons. What is that, Bob?

Is that what is called a binary? Good evening. Good evening, John. Asteroids that have their

own moons are called binary asteroids by some and there's been questions about how many asteroids have binaries

Well, they use the Gaia the European Europe's Gaia Space Telescope to identify to track the orbits of 150,000 plus asteroids.

And the tracking of Geyer is so precise, it was used to locate the distances of a billion stars. So it's very, very precise. From that

data they determined that more about 352 asteroids in the solar system have

binaries, little satellite modes. This is significant, these

are not been confirmed, but nonetheless it appears to be the case. If this is true, the

number of asteroids that have satellites is actually significantly less than what they expected.

But it's important data to understand the formation of asteroids.

How often do they break up into binaries, how often do they reform, and that

contributes to understand how the solar system forms.

So this is good data.

Neo-Wise.

Wise, Neo-Wise.

What is it?

Why is it? Why is it? Why is it? Why is it? Why is it? Wies it was called the Wide Field Infrared Survey Explorer.

It was launched in 2009.

It did an infrared survey of the sky.

By 2013, it was 2013, it was and they renamed it neo-wise and focused it then

into trying to identify asteroids and it sent the next 13 years mapping the sky for near-Earth objects it tracked it's beginning to get too low in its orbit to operate,

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