What is Nostr?
Mark McCaughrean /
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2024-07-25 10:54:13
in reply to nevent1q…86a8

Mark McCaughrean on Nostr: Gaia’s essential mission has been to measure the positions, distances, & motions of ...

Gaia’s essential mission has been to measure the positions, distances, & motions of more than a billion stars in our Milky Way galaxy, roughly 1% of the total population.

Its resulting data catalogues, some of which are yet to come, provide a fundamental 6-dimensional map of our cosmic back garden, but also underpin the distance ladder that extends to the most distant reaches of the observable Universe.

https://sci.esa.int/web/gaia/-/47354-fact-sheet
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