John D. RuleySocial Links Navigation Latest articles by John D. Ruley Intelligence: A Rare Cosmic Commodity By John D. Ruley published 10 April 08 A model suggests that intelligent life may be very rare in the universe. The Universe Get the Space.com NewsletterBreaking space news, the latest updates on rocket launches, skywatching events and more!Contact me with news and offers from other Future brandsReceive email from us on behalf of our trusted partners or sponsors MORE FROM SPACE...1ULA wants to upgrade Vulcan Centaur rocket into a 'space interceptor' to defend satellites2Mars orbiters witness a 'winter wonderland' on the Red Planet (photos)3Black hole paradox that stumped Stephen Hawking may have a solution, new paper claims4Venus, Mars and more: How to see planets in the night sky in 20255Best sci-fi movies of 2024
Intelligence: A Rare Cosmic Commodity By John D. Ruley published 10 April 08 A model suggests that intelligent life may be very rare in the universe.
