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This is CBSI in the world, the proto-galaxy that becomes the Milky Way.

Dr Ken Croswell, writing at Science News, introduces us to a discovery made by the Gaya spacecraft,

whose mission is to chart the Milky Way.

Finding a proto-galaxy 18,000 light years across that right now we're understanding

it's where we came from.

We're part of the Milky Way.

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

hole that's the center, and then the proto-galaxy.

Now Ken, at the close of repeated science news, you tease about what comes next.

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

early evolution.

What do we want to learn for looking at the red giants that are in the proto-galaxy?

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.

I think it's really exciting.

It's transition from an object that didn't rotate into one that now does.

...