Did Venus and Mars Have Cities in the Past?
Astronomer Jason Wright proposes that intelligent technological civilizations could have existed on Venus before the planet experienced a runaway greenhouse effect or on Mars when it was wetter with a thicker atmosphere. Extraterrestrial civilizations (ETC) could have arisen millions or even billions of years ago before going extinct. Or they may have left our Solar System to settle in other solar systems. If advanced technological intelligent Venusians and Martians did exist, they might have left behind traces of their technology—called technosignatures. In this video, we explore the possibility that ancient civilizations existed on Venus and Mars, and like with the Silurian Hypothesis, the difficulty of finding technosignatures, such as evidence of lost cities, that could point to their former presence.
#solarsystem #aliens #space
Interesting Astronomy Books:
The Big Book of Mars: From Ancient Egypt to The Martian, A Deep-Space Dive into Our Obsession with the Red Planet: https://tinyurl.com/dutybtty
The Aliens Are Coming!: The Extraordinary Science Behind Our Search for Life in the Universe: https://tinyurl.com/652rby2r
Confessions of an Alien Hunter: A Scientist's Search for Extraterrestrial Intelligence by Seth Shostak: https://tinyurl.com/5n6frts7
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