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The John Batchelor Show

PREVIEW: Compelling image of what appears to be two planets in the same orbit of an accretion disk of a proto solar system.Bob Zimmerman BehindtheBlack.com

The John Batchelor Show

John Batchelor

Arts, News, Society & Culture, Books

4.52.8K Ratings

🗓️ 22 July 2023

⏱️ 3 minutes

🧾️ Download transcript

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@Batchelorshow


PREVIEW: Compelling image of what appears to be two planets in the same orbit of an accretion disk of a proto solar system.Bob Zimmerman BehindtheBlack.com

https://www.eurekalert.org/multimedia/992081

Transcript

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0:00.0

At TFL, we're making journeys safer for everyone, and that includes improving safety on London's roads.

0:07.4

That's why we and London boroughs are lowering more speed limits to 20 miles per hour,

0:12.3

because 20 miles per hour roads have already reduced collisions resulting in deaths or

0:16.8

serious injuries by 24%. That is how we're making journeys in London safer and brighter for everyone.

0:24.8

Such TFL improvement plan to the Mayor of London and TFL every journey matters.

0:30.0

This is John Bachelor, a conversation with my dear friend, Bob Zimmerman, who keeps the website

0:35.1

behind the black about the direct observation of a distant star with accretion disk swimming

0:43.7

around it, the proto solar system. What appears to be two planets in the same orbit,

0:52.2

Bob is very careful to identify this as not two planets, and here's why.

1:00.0

Now, this was even I made this mistake. The press release tried to make it sound like

1:05.5

there were two planets in the same orbit, but that's not the case. What this discovery was,

1:09.9

was using the Almer millimetres telescope. They were able to take pictures of debris clouds

1:20.4

in an accretion disk around a young star, and those debris clouds are in the same orbit,

1:28.2

and they are 60 degrees apart from each other, which means they're centrally, they're in Lagrange

1:33.2

points, and they're essentially equivalent to the Trojan asteroids around Jupiter.

1:38.0

This is a place where material can gather because of orbital mechanics.

1:43.3

It's not likely there are two exoplanets in this orbit. It's more likely these are the

1:48.1

debris clouds of asteroids or material, for and after the exoplanet itself. It's the Trojans don't

1:56.4

produce planets usually those locations, but they can produce clouds of asteroids.

2:02.4

I'm John Bachelor. At TFL, we're making journeys safer for everyone, and that includes

2:09.4

improving safety on London's roads. That's why we and London boroughs are lowering more speed

2:15.0

limits to 20 miles per hour, because 20 miles per hour roads have already reduced collisions

...

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