re: Earth life is much older than that

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re: Earth life is much older than that

Marcia — 3/19/2006 2:55:42 AM (archived)

Our protoplanetary disk also had water. Most rocky planets stored some of that protoplanetary water/H2O.

Yes, during the bombardment periods, protoplanetary and after, H2O was delivered through asteroids and cometary means. I favor the later.

The whole thread (38 posts)

Did Earth Seed Life Elsewhere in the Sol System? - ljk - 3/18/2006 6:33:06 PM
- re: Did Earth Seed Life Elsewhere in the Sol System? - GLORIA WU - 4/4/2006 2:11:38 AM
  - Care to elaborate?? (n/t) - ModBob - 4/4/2006 4:29:06 AM
- re: Did Earth Seed Life Elsewhere in the Sol System? - lance - 3/20/2006 2:08:06 AM
- A good way to find out is to send humans to Mars - Scott Evil - 3/19/2006 11:17:49 PM
  - We might be looking for a while - SteveS - 3/20/2006 2:37:54 PM
    - Earth microbes on the moon - REB - 3/23/2006 9:20:50 PM
    - Did we look? - Scott Evil - 3/21/2006 5:35:26 PM
      - I don't think so - SteveS - 3/21/2006 7:14:58 PM
    - re: We might be looking for a while - ljk - 3/20/2006 3:08:53 PM
      - re: We might be looking for a while - SteveS - 3/20/2006 8:13:40 PM
- Our "gravitational well" is very deep. - Jacob Samorodin - 3/19/2006 9:55:40 PM
- Better to pponder when we FIND life elsewhere in the Solar System. (n/t) - et - 3/19/2006 7:29:50 PM
- Possible. - Tom Brosz - 3/19/2006 5:30:37 PM
  - Deinococcus radiodurans - ljk - 3/19/2006 6:30:18 PM
- Unlikely, but plausible. The problem is the survival time - David F Mayer - 3/19/2006 6:10:08 AM
  - re: Unlikely, but plausible. The problem is the survival time - ljk - 3/19/2006 7:33:59 AM
    - But at what radiation levels? (n/t) - DFM - 3/20/2006 4:08:48 PM
- Did it seed the Galaxy? - Adam - 3/19/2006 6:05:51 AM
  - re: Did it seed the Galaxy? - ljk - 3/20/2006 4:14:33 PM
  - re: Did it seed the Galaxy? - ljk - 3/19/2006 6:56:38 AM
    - That's the one - Adam - 3/19/2006 8:23:48 AM
      - re: That's the one - ljk - 3/19/2006 3:51:07 PM
- re: Did Earth Seed Life Elsewhere in the Sol System? - SteveS - 3/19/2006 12:26:51 AM
  - Earth life is much older than that - ljk - 3/19/2006 1:07:12 AM
    - re: Earth life is much older than that - Marcia - 3/19/2006 2:55:42 AM
  - Lot longer than 500 million - dtb - 3/19/2006 12:46:54 AM
    - That's right they are talking bacteria, my bad (n/t) - SteveS - 3/19/2006 12:56:21 AM
      - Earth rocks could have taken life to Titan - ljk - 3/19/2006 9:40:22 PM
        
        re: Earth rocks could have taken life to Titan - SteveS - 3/20/2006 2:47:36 PM
        
        re: very dubious - Andrew - 3/20/2006 6:09:57 AM
        
        Meteroites - Adam - 3/20/2006 9:25:29 AM
        
        re: Meteroites - ljk - 3/20/2006 3:33:52 PM
        
        re: Meteroites-still dubious - Andrew - 3/21/2006 12:42:17 AM
        
        re: Meteroites-still dubious - ljk - 3/21/2006 7:30:53 PM
        
        re: Meteroites-still dubious - pwokenyaw - 3/21/2006 5:43:07 PM
        
        Did life shape Earth's evolution? - ljk - 3/23/2006 6:27:41 PM
        
        Preventing the Forward Contamination of Mars - ljk - 4/4/2006 2:54:16 PM

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