Are we alone?

Intelligent Life May Have Appeared in the Universe Billions of Years Ago

[W]e might expect intelligent life and technological communities to have emerged in the universe billions of years ago. Given that human society is only a few thousand years old, and that human technological society is mere centuries old, the nature of a community with millions or even billions of years of…

Apr 12, 2012 1 1

• alien life
• extraterrestrials