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March 24, 2011
The Great Silence
Considering the scale of our galaxy, one might expect it to be teeming with life and our planet a tourist destination for extraterrestrial civilizations. As Enrico Fermi once asked: "Where are they?"
My bet was on Berserkers. Though it turns out any potential alien visitors may have all been fried by supernova radiation.
A massive white dwarf star in our galaxy may become a supernova several million years from now, and could possibly destroy life on Earth.
Most astronomers today believe that one of the plausible reasons we have yet to detect intelligent life in the universe is due to the deadly effects of local supernova explosions that wipe out all life in a given region of a galaxy.
Most astronomers today believe that one of the plausible reasons we have yet to detect intelligent life in the universe is due to the deadly effects of local supernova explosions that wipe out all life in a given region of a galaxy.
Posted by Ghost of a flea at March 24, 2011 08:37 AM