May 24, 2017 04:39 AM
https://www.universetoday.com/135347/loo...ar-system/
EXCERPT: [...] But according to Jason Wright, an astronomer at the Center for Exoplanets and Habitable Worlds at Penn State University, we could consider searching for evidence of ancient civilizations right here on Earth, or across the Solar System. Don’t get excited, though, so far “there is zero evidence for prior indigenous species in the Solar System.”
In a paper, recently submitted to the arXiv electronic preprint archive entitled Prior Indigenous Technological Species, Dr. Wright describes how we might go about searching for the technological artifacts left behind by ancient civilizations that have evolved in the Solar System. Perhaps on an ancient, cooler Venus, or on Mars in a time when it was wetter and had a thicker atmosphere. Those civilizations could have arisen millions or even billions of years ago, destroyed themselves or left the Solar System, and only ancient traces of their culture and technology would still be around.
If a civilization had reached a high level of technology, where did it go? Wright suggests a variety of catastrophes [...] Even without a specific event, a civilization might have simply just died out, or became permanently non-technological. Of course, these possibilities face our own human civilization. [...] Where should we look? According to Wright...
MORE: https://www.universetoday.com/135347/loo...ar-system/
EXCERPT: [...] But according to Jason Wright, an astronomer at the Center for Exoplanets and Habitable Worlds at Penn State University, we could consider searching for evidence of ancient civilizations right here on Earth, or across the Solar System. Don’t get excited, though, so far “there is zero evidence for prior indigenous species in the Solar System.”
In a paper, recently submitted to the arXiv electronic preprint archive entitled Prior Indigenous Technological Species, Dr. Wright describes how we might go about searching for the technological artifacts left behind by ancient civilizations that have evolved in the Solar System. Perhaps on an ancient, cooler Venus, or on Mars in a time when it was wetter and had a thicker atmosphere. Those civilizations could have arisen millions or even billions of years ago, destroyed themselves or left the Solar System, and only ancient traces of their culture and technology would still be around.
If a civilization had reached a high level of technology, where did it go? Wright suggests a variety of catastrophes [...] Even without a specific event, a civilization might have simply just died out, or became permanently non-technological. Of course, these possibilities face our own human civilization. [...] Where should we look? According to Wright...
MORE: https://www.universetoday.com/135347/loo...ar-system/