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#173 Understanding chronic health conditions; Artificial sweetener linked to heart attacks; Re-thinking galaxies; UN geoengineering report

The world, the universe and us

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James Webb Space Telescope - Galaxies Are Much Bigger Than Expected

Astronomers think that when galaxies first formed soon after the birth of the universe they'd be fairly small it takes time for galaxies to grow large. James Webb has spotted galaxies much larger than we would expect at this time so these galaxies are 30 billion light years away and they would have formed as roughly 700 million years after the big bang which sounds like a long time but you know in sort of galactic terms is quite quick. Yet they have a mass of 100 billion times that of the Sun so suggesting thatyou know they're containing loads and loads of stars or you know stars similar to the mass of the Sun and just far bigger than we would have expected.

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