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DESI's Dizzying Results

(www.universetoday.com)
29 points belter | 1 comments | 17 Nov 25 17:39 UTC | HN request time: 0s | source
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swiftcoder ◴[17 Nov 25 20:18 UTC] No.45957802[source]▶
> They’re aiming for 50 million galaxies once the survey is complete... Sure, the DESI survey is less than 1% of all the galaxies in the observable volume of the cosmos

That just broke my brain. Had to look it up. 2+ trillion galaxies in the observable universe? That puts things in perspective all right

replies(1): >>45958389 #
omnicognate ◴[17 Nov 25 21:15 UTC] No.45958389[source]▶
Each one thousands to hundreds of thousands of light years across, and with millions of light years between them.
replies(1): >>45960138 #
1. chris_st ◴[18 Nov 25 00:43 UTC] No.45960138[source]▶
Each galaxy having a few thousand to millions of stars (for a dwarf galaxy), to 100-400 billion stars for a spiral galaxy like ours, to about a trillion stars for large ellipticals like Andromeda.

Kind of a lot.