Harold Connolly Jr.

We'll follow our analog earlier.

Anyway, so, yeah, the key is we don't know exactly what meteorites come from what asteroids.

We have some spectral identification, meaning we look at different wavelengths of light or we identify asteroids.

And we want to be able to understand the geologic context of these meteorites because any rock the geologist has, you can only tell so much about the story without putting it into the course that it's been singing in to know what is the larger picture.

Furthermore, these carbonaceous chondrites are full of what we call volatiles.

They have water in them.

They have minerals that require water to form.

They have organic compounds in them, the prebiotic compounds that we need in order for life to have developed.

And those are some of the key issues, including, as we said, security, which is we don't understand exactly how asteroids move very well because we make these predictions about how they're going to

Possibly hit the Earth in the end of the 22nd century.

And we have what we call a probability.

But that probability also needs to know what's the composition of the asteroid in order to predict well.

Yeah, so when we talk about rocks that have volatiles, then we're talking about the kinds of compounds that would quickly evaporate when you raise the temperature of the rock from basically background temperature.

Oh!

Yeah, so water, for example, you know, everybody knows water will boil, you know, at 100 degrees C or 212 Fahrenheit.

So, you know, that's something that these rocks contain, and that water...

is 4.567 roughly billion years old, and was moving around the actual original body, what we call the parent body, of the asteroids that we see now.

What we see now are basically bits and pieces of what was once much larger bodies that were internally geologically active.

Interesting.

Time capsule, better word, yeah.