ma𝕏poolMar 11

“Great Silence” in narrowband radio technosignature searches over the past several decades may be caused by spectral broadening in interplanetary medium.

Turbulent plasma near distant stars could blur ultra-narrow signals before they leave their home star systems, making them difficult to detect.
https://www.seti.org/news/why-seti-might-have-been-missing-alien-signals/

Exo–IPM Scattering as a Hidden Gatekeeper of Narrowband Technosignatures https://iopscience.iop.org/article/10.3847/1538-4357/ae3d33

"Narrowband radio technosignatures can be significantly modulated by the host star’s exoplanetary interplanetary medium (Exo-IPM), where turbulence in stellar winds and coronal mass ejections (CMEs) imprint spectral broadening. ..

#seti #astronomy #FermiParadox

Chris LothMar 5
Social Media ist wohl einfach auch ein großer Filter. #fermiparadox
Miro CollasMar 4

Brian Cox: The terrifying possibility of the Great Filter - YouTube
https://www.youtube.com/watch?v=rXfFACs24zU

#ExtraterrestrialLife #FermiParadox

Brian Cox: The terrifying possibility of the Great Filter

YouTube
Kuuke's SterrenbeeldenMar 3
Astronomen berekenden de levensduur van buitenaardse beschavingen en dat ziet ervoor ons niet goed uit
Onze zoektocht naar buitenaards leven is tot nu toe vruchteloos gebleken en dat komt misschien omdat technologisch geavanceerde beschavingen gedoemd
#beschaving #BuitenaardsLeven #FermiParadox #heelal #melkweg #seti #VergelijkingVanDrake
https://www.kuuke.nl/astronomen-berekenden-de-levensduur-van-buitenaardse-beschavingen-en-dat-ziet-ervoor-ons-niet-goed-uit/
StatuslinkFeb 28
If Aliens Exist, Why Don’t They Answer? The Fermi Paradox: Why haven’t we found alien life yet? Mythbusting common assumptions, we examine the Great Filter, Rare Earth hypothesis. #FermiParadox #AlienLife. youtu.be/IdfhaAYnF7s statusl.ink/ifalien_istw...

If Aliens Exist, Why Don’t The...
If Aliens Exist, Why Don’t They Answer?

YouTube
The Perpetually Curious!Feb 27

🌌 The Fermi paradox begins with a simple question: a universe rich with stars and worlds, and a sky that still feels quiet. How do we separate a true signal from our own interference, and what might silence be telling us?

✍️ Full exploration: https://TPC8.short.gy/lnUnZ9ab

🔭 In the hush between signals, curiosity learns to listen.

#FermiParadox #SETI #Astronomy #Science #Exoplanets #TPC8

🌌 The Cosmic Silence: Unraveling the Fermi Paradox in an Age of Discovery

Show threadArnd LayerFeb 20

@alvar
Das #FermiParadox war für mich nie schlüssig. Bei den Distanzen müssten die Aliens entweder soviel länger leben als wir, dass ein Kontakt eh nicht sinnvoll wäre, oder die Relativitätstheorie ist so falsch wie es kein Physiker annimmt.

Aliens, die Kontakt mit uns aufnehmen können, müssten uns heute immer noch wie Götter vorkommen. Und Däniken hatte trotzdem nicht recht.

Anand PhilipFeb 20

maybe we haven't been visited by aliens because they look at our rating and go "just One star? eww I'll pass"

#FermiParadox

Show threadSpaceflight 🚀Feb 17

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
10.8%
Until the time of my great-great-grandchildren
16.2%
Possibly after the next 1000 years
59.5%
As a measure to #exterminate all life on Earth
13.5%
Poll ended at .
Active SETI - Wikipedia

Show threadSpaceflight 🚀Feb 17

#University of Warwick, #Astronomy and #Astrophysics Group

"Of course it remains possible that #alien 👽 mindsets differ substantially from our own. Perhaps no other race is so cynical about the intentions of others, or wedded to game theory analysis of the potential threat. Perhaps no other species is quite so #aggressive as we imagine" 🤔 https://warwick.ac.uk/fac/sci/physics/research/astro/people/stanway/sciencefiction/cosmicstories/the_dark_forest

Pictures : https://commons.wikimedia.org/wiki/File:Adult_male_Phidippus_mystaceus_2011.jpg | https://commons.wikimedia.org/wiki/File:European_praying_mantis_(Mantis_religiosa)_green_female_Dobruja.jpg | https://commons.wikimedia.org/wiki/File:Amphioctopus_kagoshimensis_Uminonakamichi.jpg

#METI #DarkForest #SETI #FermiParadox #SciFi