Astronomers have spotted a gigantic void they believe to be a baryon acoustic oscillation — a relic from when the universe was a fiery plasma soup
Astronomers have spotted a gigantic void they believe to be a baryon acoustic oscillation — a relic from when the universe was a fiery plasma soup
We’d still be able to see such civilizations from their infrared emissions. There was actually a search done a while back looking for Type III civilizations, the Ĝ survey, but it came up empty.