• Xenopsychology http://www.rfreitas.com/Astro/Xenopsychology.htm 12 comments 26/10/2013

• SETA (Search for Extraterrestrial Artifacts). 99.9% of orbital space remains to be searched. (crosspost from TIL) http://www.rfreitas.com/astro/setaspaceflight1984.htm 5 comments 2/8/2011 space