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The John Batchelor Show

#Bestof2022: 2/2: #Astronomy: #Milkyway: Theory of Origins. Ken Croswell, author, The Lives of Stars.

The John Batchelor Show

John Batchelor

Society & Culture, Arts, News, Books

4.52.8K Ratings

🗓️ 12 November 2023

⏱️ 4 minutes

🧾️ Download transcript

Summary

#Bestof2022: 2/2: #Astronomy: #Milkyway: Theory of Origins. Ken Croswell, author, The Lives of Stars.

https://www.sciencenews.org/article/milky-way-galaxy-nucleus-oldest-stars-protogalaxy

1851 London

Transcript

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0:00.0

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The preceding may contain forward-looking statements,

0:28.8

which may not be realized. This is a series I in the world the Paro Galaxy that becomes the Milky Way.

0:40.0

Dr Ken Kraswell writing at News, introduces us to a discovery made by the Gaius spacecraft

0:47.0

whose mission is to chart the Milky Way, finding a proto-galxy 18,000 light years across that right now

0:55.3

our understanding it's where we came from.

0:58.8

We're part of the Milky Way.

1:00.9

We're in the thin disk, following the thick disk, somewhere in relationship

1:05.4

to the black hole that's the center, and then the proto-galxy. Now, Ken, at the close of your

1:10.3

piece of science news, you tease about what comes next. Stars that

1:15.0

astronomers can now scrutinize for further clues to the galaxy's birth and

1:19.0

early evolution. What do we want to learn for looking at the red giants that are in the photo galaxy?

1:25.0

Well, one thing as I mentioned in the last segment that we've already learned is to see the Milky Way's initial spin-up.

1:32.8

That I think is really exciting.

1:34.6

It's transitioned from an object that didn't rotate

1:37.0

into one that now does.

1:38.8

We can also now look at these stars,

...

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