A new study suggests that advanced civilizations may have existed in the distant past, but left no trace of their existence. The study, which uses a mathematical model of cultural evolution, shows that the probability of detecting an ancient civilization is very low, even if they were widespread and long-lasting. The study challenges the assumption that we are the first or only intelligent species in the universe. #AncientCivilizations #CulturalEvolution #CosmicHistory

https://phys.org/news/2023-09-advanced-civilizations.html?utm_source=flipboard&utm_content=HariTulsidas%2Fmagazine%2FMind+and+Matter

#Supermassiveblackholes (#SMBHs)—black holes with masses exceeding a million times that of the #sun—are known to prevail in the #universe today. However, it is not clear yet when, where, and how they formed during the 13.8 billion years of #cosmichistory.

https://phys.org/news/2023-09-supermassive-black-holes-early-universe.html?utm_source=nwletter&utm_medium=email&utm_campaign=daily-nwletter

Stunning insights of the inner workings of quasars! Using #eROSITA #Spacetelescope🛰, the study published in @royalastrosoc & led by Elias Kammoun from IRAP France and #MPE #PhDstudent Zsofi Igo suggests significant changes in the #XRay emission of #quasar #J1144, the most luminous quasar seen in the last 9 billion years of #CosmicHistory.
Read more:
https://www.mpe.mpg.de/7948582/news20230519