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The Dark Energy Spectroscopic Instrument (DESI) Legacy Imaging Survey has recorded more than one billion galaxies. But there are many more galaxies in the obse
by Tepix 2y ago
The Dark Energy Spectroscopic Instrument (DESI) Legacy Imaging Survey has recorded more than one billion galaxies.
But there are many more galaxies in the observable universe … somewhere between 2 and 20 trillion
- jajko 2y ago> But there are many more galaxies in the observable universe … somewhere between 2 and 20 trillion A bit less officially, need to remove one zero [1] [1] https://en.wikipedia.org/wiki/Galaxy#:~:text=It%20is%20estimated%20that%20there,galaxies%20in%20the%20observable%20universe. https://en.wikipedia.org/wiki/Galaxy#:~:text=It%20is%20estim...
- Tepix 2y agoThere are more recent estimates going from 6-20 trillion now: https://bigthink.com/starts-with-a-bang/galaxies-in-universe/ https://bigthink.com/starts-with-a-bang/galaxies-in-universe...
- hnuser123456 2y agoThat article is going beyond the observable universe, other comments were talking about within it.
- Tepix 2y agoWhat makes you think that? I quote: > "Instead, based on what we see around nearby Milky Way analogues, there ought to be at least 6 trillion galaxies contained within the observable Universe, and it’s plausible that a number that’s more like ~20 trillion"
- eleveriven 2y agoYeah, the scale of it is absolutely mind-blowing