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Harold Connolly Jr.

๐Ÿ‘ค Speaker
428 total appearances

Appearances Over Time

Podcast Appearances

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

And that was something that was indeed forming probably some of the early proto-planets that may have existed.

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

And once the objects get to a certain size, around 10 kilometers or so in diameter, the internal mechanism begins to turn on for geologic process.

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

That internal mechanism is heat begins to move around.

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

That's generated from the decay of radioactivity and pressure.

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

It becomes a cosmic body.

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

It begins to melt the ices that were created with it.

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

It begins to have fluid.

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

And we call that the early stages of metamorphism in geology.

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

And the early stages of metamorphosis, that fluid moves through and begins to interact with the minerals that are there.

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

And it begins to change those minerals and pick up different kinds of chemicals as it's moving through the fluid.

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

It moves in different parts of the asteroid because it cracks and all kinds of things that happen.

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

And then what we think happened is that at some point, the poor parent body asteroid gets collided into with something else.

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

And it stops the process.

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

So you have a snapshot in geologic time of that moment that all the processes geologically were active.

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

Wow.

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

It got knocked up.

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

It got knocked up.

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

And, you know, that's it.

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

Well, yeah, there are also asteroids that have satellites that go around from collisions, most likely so.

StarTalk Radio
Secrets of Asteroid Bennu with Harold Connolly Jr.

Even asteroid Bennu, although we don't have a satellite, didn't find a satellite, it was geologically active on the surface, and we had these explosions that...