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Speaker 1: Jersey and Amanda gem Nation.

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Speaker 2: Well there's a celestial spectacular happening right now. Earth has

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Speaker 2: a tiny new mini moon which will be dazzling the

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Speaker 2: skies for a couple of months. It's not the first

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Speaker 2: time we've had multiple moons apparently, and it won't be

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Speaker 2: the last. But what does the phenomenon mean? What's behind it?

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Speaker 2: Is it all ugity boogie? Isn't wonderful? Need to tell

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Speaker 2: us all is? Astrophysicist Brad Tucker Hollow.

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Speaker 1: Brad, how's it going?

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Speaker 2: You're our first astrophysicist for the day, Brad, so welcome.

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Speaker 1: Well that's good. I mean, you know you only need

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Speaker 1: one good one per day, so you know that's all

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Speaker 1: you need an ash physicist a day will keep the

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Speaker 1: chemists away.

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Speaker 2: Think we say, tell us about the mini moon. What's

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Speaker 2: a mini moon?

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Speaker 1: So a Mani moon is you know, it's kind of

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Speaker 1: Doctor Evil style, medi me right. It's a little object

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Speaker 1: that is captured by the Earth. So this Mani moon

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Speaker 1: is actually an asteroid. It's a chunk of rock that

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Speaker 1: was orbiting around the Sun and it got knocked and

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Speaker 1: as it got knocked, it changes orbit and then it

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Speaker 1: kind of got too close to the Earth, So the

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Speaker 1: Earth's gravitational pool tugged on it, and then it is

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Speaker 1: making it, making it arc or kind of curve around

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Speaker 1: the Earth, acting like it's in orbit around the Earth.

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Speaker 1: And once you orbits an object, you become a moon,

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Speaker 1: or the technical term is natural satellite. And therefore it's

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Speaker 1: a small version of what our very famous object is,

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Speaker 1: the moon.

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Speaker 2: Is like when you say mini moon, how big are

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Speaker 2: we talking in proportion to say a city?

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Speaker 1: Yeah, so this thing is probably not the size of

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Speaker 1: a bus, right, you know, So to put this in

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Speaker 1: a scale, our moon is fairly similar in size to Australia,

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Speaker 1: So diameter wise, our moon and Australia are pretty identical.

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Speaker 1: If you put Australia three hundred and eighty four thousand

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Speaker 1: kilometers away where the moon is, it would be about

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Speaker 1: the same size, just Australia shaped. This thing is only

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Speaker 1: about the size of a bus, but it's also traveling

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Speaker 1: millions of kilometers away, so it is quite small, which

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Speaker 1: means it's also traveling relatively fast. So it's not going

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Speaker 1: to hang around for a long time. It's not gonna

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Speaker 1: get stuck going around the Earth. It's only going to

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Speaker 1: kind of do this curved. Occasionally it can be that

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Speaker 1: they get stuck doing full laps around the Earth and

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Speaker 1: eventually go away, but not the case with this one.

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Speaker 2: Can you see it with the naked eyebrett?

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Speaker 1: No, So this is the thing. This thing is so

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Speaker 1: small and far away that we really don't even You

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Speaker 1: won't even know it's there. If you're not even listening,

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Speaker 1: you would not even know it existed, much like some

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Speaker 1: of the ways the Cinie Swan's played on the weekend.

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Speaker 1: But I digress. I don't too soon, too soon, but

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Speaker 1: I think it's fair, but you know it was. It's

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Speaker 1: the sort of thing that you're not gonna be able

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Speaker 1: to see it. It's not gonna be very big in

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Speaker 1: the sky, and really you need a really big telescope.

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Speaker 1: So it's kind of in some ways disappointing because it's

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Speaker 1: not going to appear like a moon. But it is

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Speaker 1: definitely there and we know it exists. But again, there

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Speaker 1: are situations where you could hold on to it. In fact,

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Speaker 1: this is what we think happen to Mars. So Mars

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Speaker 1: has two moons, we call them Phobos and d Moss,

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Speaker 1: and we actually believe that essentially the same thing happened

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Speaker 1: two asteroids got too close Mars hooked onto it, and

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Speaker 1: then they got stuck orbiting around Mars and have been

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Speaker 1: there for at least tens of millions of years.

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Speaker 2: Right, what would have.

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Speaker 1: What would happen if his mini moon collided with the Earth.

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Speaker 1: So when you get something about the size of a boss,

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Speaker 1: these things essentially explode in the Earth's atmosphere. They're traveling

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Speaker 1: super fast and then they smash into the Earth and

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Speaker 1: they essentially explode. And when they explode, they released tons

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Speaker 1: worth of energy, so they can really do damage. You know,

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Speaker 1: you're not going to destroy the Earth, You're not gonna

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Speaker 1: do large scale consequences, but if it hits over a

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Speaker 1: populated area, it can do quite a bit of damage.

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Speaker 1: There was one that was about twenty meters wide, so

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Speaker 1: a little bit bigger, believe it or not, that hit

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Speaker 1: over Russia Chebulinsk in twenty thirteen, and the shockwave blew

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Speaker 1: out windows and it did all sorts of things. So

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Speaker 1: it definitely can cause damage. But it's not going to

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Speaker 1: be the end of the world.

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Speaker 2: When will we know if this one's going to hang around.

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Speaker 1: So we kind of already know what this orbit is doing,

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Speaker 1: so we kind of already know that it's going to

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Speaker 1: start hitting on its way out. So it's been around

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Speaker 1: for now week about twelve days or so when we

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Speaker 1: would say it's kind of orbiting around the Earth. It's

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Speaker 1: going to hang around for about another month and then

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Speaker 1: it's going to head out on its way. So it's

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Speaker 1: really by the time mid November rolls around, the Earth

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Speaker 1: will have lost it and it will start to go

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Speaker 1: off back into the Solar System.

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Speaker 2: I kind of miss it, or be like hawk two

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Speaker 2: agol if only she disappears, quickly.

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Speaker 1: Comes into atmosphere and then disappears. Brad, Thank you so much.

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Speaker 1: That is fascinating, and thank you for bringing the vibe.

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Speaker 1: If only you could say the city by the Bay,

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Speaker 1: the city that rocks, the city that never sleeps.

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Speaker 2: You've got some great DJ vibe going there.

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Speaker 1: Oh look that that's how that's how I'm born, That's

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Speaker 1: how we rock. That's a great thing about space. It's

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Speaker 1: always explosive.

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Speaker 2: Oh fabulous, bread, We'll talk to you again.

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Speaker 1: Thank you very much, thank you, thank you very much.

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Speaker 2: Fascinating