Spaceflight 🚀🔭 #PlanetNine is likely to be the fifth largest 📏 #planet 🪐 in the #SolarSystem 🌌 https://www.independent.co.uk/space/nine-planet-solar-system-b2500389.html
An advanced #extraterrestrial civilization could potentially detect 🔭 signs of life on Earth. But the #scale of the #universe 🌌 is incredibly vast. Even at the speed of light, signals 📶 from #Earth 🌏 have only reached a very small portion of our #galaxy. https://newspaceeconomy.ca/2023/07/15/can-extraterrestrial-life-detect-us/
Any civilisation 👽 reading our messages could be billions of years ahead of humans. “If so they will be vastly more powerful and may not see us as any more valuable than we see bacteria” https://www.theguardian.com/science/2016/sep/23/stephen-hawking-warns-against-seeking-out-aliens-in-new-film
👽 “Look at the mess we made when #Covid hit. We’d be like headless chickens 🐓. We cannot afford to be ill-prepared, #scientifically, #socially, and #politically rudderless, for an event that could happen at any time and which we cannot afford to mismanage.” https://www.theguardian.com/science/2022/dec/29/if-aliens-contact-humanity-who-decides-what-we-do-next
Number of #planets 🪐 discovered outside the #SolarSystem (5824) https://ourworldindata.org/grapher/cumulative-exoplanets-by-method
Given the currently 5983 confirmed #planets 🪐 https://exoplanetarchive.ipac.caltech.edu, the 100–400 billion stars in the #MilkyWay 🌌 https://en.wikipedia.org/wiki/Milky_Way and 200 billion to 2 trillion #galaxies https://en.wikipedia.org/wiki/Galaxy in the observable 🔭 #universe, do you expect #intelligent life exists
In the Universe
In the Milky Way
In our Solar System
I know that I know nothing
Poll ended at .
Our so-called #radio bubble, which streams out in all directions—north and south, east and west—thus measures just 200 light years in diameter. That’s a flyspeck in a #galaxy 🌌 that measures 100,000 light years 📏 across and a #universe that is a staggering 94 billion light years https://time.com/6242921/why-extraterrestrials-havent-contacted-earth
Unintentional "leaked signals" are millions-fold weaker than intentional #METI signals 📶. Given the number of messages already sent to target stars https://en.wikipedia.org/wiki/Active_SETI#Transmissions, do you expect a reply
#DarkForest #SETI #FermiParadox #Extraterrestrial #DoctorWho
In my lifetime
Until the time of my great-great-grandchildren
Possibly after the next 1000 years
As a measure to #exterminate all life on Earth
Poll ended at .
Only a fraction of the vast multidimensional parameter search space 🌌 has been explored so far —a situation compared to searching for a needle in a #cosmic haystack. Either #technoemissions are sufficiently rare that none has illuminated Earth during the 65 yr of #SETI searches, or they have indeed intersected our planet but have so far eluded detection. Should the current commitment to the search for life elsewhere persist, a discovery 📡 could be closer than ever https://iopscience.iop.org/article/10.3847/1538-3881/ae394b
#Earth 🌏 can be found on one of the #MilkyWay’s 🌌 outlying spiral arms – the #Orion-Cygnus arm, sitting at a point roughly halfway from the #galactic centre to its outer rim. To reach either, you’d have to travel about 25,000 lightyears https://www.skyatnightmagazine.com/space-science/where-earth-in-milky-way
Picture : https://commons.wikimedia.org/wiki/File:236084main_MilkyWay-full-annotated.jpg
#BreakthroughListen will scan the the skies 🌌 with the aid of the #MeerKAT Telescope 🔭*. They are targeting a million nearby stars ✨ https://www.dailymotion.com/video/x9xium4
* 🗺️ https://graphhopper.com/maps/?point=Karoo+Array+Telescope&layer=Esri+Satellite
#BreakthroughListen : Join the search by harnessing your computer's 💻 spare processing power http://seti.berkeley.edu