slaughter

If you’ve ever looked up into the unfathomable night sky and wondered, “Are we alone?” then you are not alone. About 70 years ago, physicist Enrico Fermi looked up into the sky and asked a similar question: “Where is everybody?” There are hundreds of billions of stars in the Milky Way galaxy alone, Fermi reckoned, and many of them are billions of years older than our sun. Even if a small fraction of these stars have planets around them that proved habitable for life (scientists now think as many as 60 billion exoplanets could fit the bill), that would leave … Read more