#Bestof2022: 2/2: #Astronomy: #Milkyway: Theory of Origins. Ken Croswell, author, The Lives of Stars.
The John Batchelor Show
John Batchelor
4.5 • 2.8K Ratings
🗓️ 12 November 2023
⏱️ 4 minutes
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Summary
https://www.sciencenews.org/article/milky-way-galaxy-nucleus-oldest-stars-protogalaxy
1851 London
Transcript
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| 0:26.8 | 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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