• 11 of the Weirdest Solutions to the Fermi Paradox http://io9.com/11-of-the-weirdest-solutions-to-the-fermi-paradox-456850746 7 comments 20/3/2013 space
• 11 of the Weirdest Solutions to the Fermi Paradox (or why we haven't been introduced to aliens) http://io9.com/11-of-the-weirdest-solutions-to-the-fermi-paradox-456850746 130 comments 9/3/2014 science