Space/Science » in reply to Did life start on Earth 4.4 billion years ago?

The whole thread (25 posts)

• How to narrow the search for ETI - Socrates II - 3/12/2009 4:02:20 PM
  • Look at it in reverse. Figure out what we would need to do to TRANSMIT a signal to another life form. - David F Mayer - 3/19/2009 10:15:44 PM
  • The best way to search for ETI - mip - 3/16/2009 9:28:26 PM
    • Maybe not directly see the aliens, but... - Socrates II - 3/17/2009 2:34:18 PM
      • JWST Will Provide Capability to Search for Biomarkers on Earth-like Worlds - Socrates II - 3/20/2009 12:25:04 AM
  • That's logical... - Adam - 3/16/2009 7:22:05 AM
  • re: How to narrow the search for ETI - phil - 3/12/2009 4:48:27 PM
  • The only problem is... - ER - 3/12/2009 4:28:40 PM
    • Did you see the Benfords' papers? - Adam - 3/16/2009 7:28:35 AM
    • "Alien" life might be right here on Earth now - Socrates II - 3/12/2009 5:02:46 PM
      • And I don't mean cellular automata, like Conway's Life. - ER - 3/13/2009 12:48:50 AM
        • Galactic Dust Bunnies Found to Contain Carbon After All - Socrates II - 3/13/2009 11:10:55 AM
          • Did life start on Earth 4.4 billion years ago? - Socrates II - 3/13/2009 8:24:40 PM
            • Of course if it's not from Earth to start with... - Adam - 3/16/2009 7:20:20 AM
              • But even if life on Earth came from somewhere else... - Socrates II - 3/16/2009 12:21:16 PM
                • Well maybe - Adam - 3/17/2009 8:47:41 AM
                  • Molecules From Space May Have Affected Life On Earth - Socrates II - 3/18/2009 6:57:40 PM
                    • Earth had oxygen in its oceans 700 million years earlier than thought? - Socrates II - 3/19/2009 10:38:53 AM
                      • Call me sceptical... - Adam - 3/19/2009 9:39:49 PM
            • Too many comets = no life? - Socrates II - 3/15/2009 10:31:20 PM
              • Scientists Sometimes Need to Think Like Science Fiction Writers - Socrates II - 3/15/2009 10:48:46 PM
                • Confessions Of An Alien Hunter - Socrates II - 3/24/2009 10:06:13 PM
                  • Interview with Seth Shostak - Socrates II - 4/8/2009 5:35:08 PM
                  • Photometric Variability in Earthshine Observations - Socrates II - 4/7/2009 5:27:52 PM
                    • Astrometric Detection of Earthlike Planets - Socrates II - 4/7/2009 6:31:47 PM