Why was the Search for #Extraterrestrial Intelligence (#SETI) 👽 unsuccessful so far ?
#Life 🦠 appeared pretty much as soon as it could, right when the #oceans formed and our #planet stopped being a molten 🌋 hellscape. That might have been as early as 3.7 billion years ago. But #intelligent life appeared basically yesterday—what we identify as anatomically modern humans arose about 120,000 years ago. https://arstechnica.com/space/2023/05/were-essentially-alone-in-the-universe-and-thats-ok
Pictures : :ccby: 
https://commons.wikimedia.org/wiki/File:Nature_timespiral_horizontal_layout_white_background.png https://commons.wikimedia.org/wiki/File:Space-ship-763493.svg
@spaceflight The other problem is that most of the galaxy, as measured by density, is unsuitable for development of the kind of life we understand. Too many stars too close together means you get a supernova in the neighborhood with life-extinguishing effects too frequently for anything resembling DNA-based life to get very far before the reset button is pushed, again and again.
@pieist probably near the center, but all the 100K light years ?https://arxiv.org/abs/2012.06552 The @arstechnica article also mentions we currently don't really observe 🔭 very thoroughly (same with #asteroids btw)