The climate crisis on Earth 'may explain the cosmic silence,' a group of NASA scientists explains.
Alien civilizations may have slowly wiped themselves out due to climate catastrophes on their home planets.published in the pre-print server ArXiv, a group of NASA scientists analyzed the 'Great Filter' theory, which posits that ancient alien civilizations may have wiped themselves out before they had any chance of making contact with humanity.
"We postulate that an existential disaster may lay in wait as our society advances exponentially towards space exploration, acting as the Great Filter: a phenomenon that wipes out civilizations before they can encounter each other, which may explain the cosmic silence." Hanson suggested that many alien civilizations may have evolved to a point before they had the technology required to expand off-world, only to have then been wiped out.
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The Space Force’s X-37B spaceplane returns to Earth after over two years in spaceThe secretive spaceplane spent a record 908 days in orbit.
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Mysterious US Space Drone Returns to Earth After Record-Breaking MissionA US military space drone landed at the Kennedy Space Center in Florida on Saturday after nearly two and a half years in orbit, Boeing said.
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