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...1SpaceX launches European reentry capsule on 'Bandwagon-3' rideshare mission2SpaceX launch creates a 'nebula' | Space picture of the day for April 21, 20253Don Pettit, NASA's oldest active astronaut at 70, arrives in Houston after 7-month space mission (photo)4Amazon's Kuiper 1 internet satellites get new April 28 launch date on Atlas V rocket after delay5Did we actually find signs of alien life on K2-18b? 'We should expect some false alarms and this may be one'
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.
