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View Diary: So Far, All Identified Exoplanets May Be Uninhabitable (56 comments)

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  •  Unfortunately, we don't have the... (13+ / 0-) to reach any of these planets in a reasonable amount of time (i.e., FTL drive), nor do we have a way of reporting back (subspace radio). If they are inhabited, the life may be much different than anything we know of.

    Float like a manhole cover, sting like a sash weight! Clean Coal Is A Clinker!

    by JeffW on Thu Jan 10, 2013 at 06:08:02 PM PST

    •  I think that we can easily reach... (4+ / 0-)
      Recommended by:
      LordMike, wader, Oh Mary Oh, bevenro

      ...these planets in a relatively short amount of time.

      If the word "we" is understood as meaning "RNA and its ingredients"


      the phrase "relatively short" is understood as meaning "on a galactic timescale."

      You always have to leave stuff behind when you go on a trip.  Why should DNA-based life be any different?  We will certainly have to abandon human bodies and human timescales if we are to extend ourselves between galaxies.

      We need to think of ourselves a little differently: we're the currently manifesting consciousness of DNA...and the problem isn't getting humans to another star, but getting our DNA or an equivalent molecule there and finding it places where it can start new life.

      Freedom isn't "on the march." Freedom dances.

      by WarrenS on Thu Jan 10, 2013 at 07:45:34 PM PST

      [ Parent ]

      •  You're still talking technology that... (3+ / 0-)
        Recommended by:
        WarrenS, wader, Calamity Jean

        ...doesn't yet exist. We can't even send robotic probes out that far and be able to get information back.

        Float like a manhole cover, sting like a sash weight! Clean Coal Is A Clinker!

        by JeffW on Thu Jan 10, 2013 at 07:58:48 PM PST

        [ Parent ]

      •  Why send our DNA? (3+ / 0-)
        Recommended by:
        WarrenS, wader, Calamity Jean

        Send robots out there. Robots don't have our frailties. They can go into environments that we could never survive in. They could build more robots, and those could in turn build more.

        If we follow in their wake, there would be plenty of room for human and robot. The robots could build facilities in advance of our arrival, and leave us the planets habitable by humans. Robots could do the work of terraforming. It would take a while, but what's time to robots.

        Of course, we'd have to advance tremendously in AI, but we have time. The universe could wind up being populated by our robotic children. We'd have to build equipment that can work after centuries in space, but that's a technical difficulty, not a scientific impossibility.

        If we really have to have humans go out there, we could send out craft with robots, frozen embryos and artificial wombs. The craft would land, the robots would build the facilities, and then fire up the artificial wombs. Then the would raise the children to adulthood. It would take a lot of advancement in AI to have a robot that could construct a city and raise children. But we have time.

        The wolfpack eats venison. The lone wolf eats mice.

        by A Citizen on Thu Jan 10, 2013 at 08:22:56 PM PST

        [ Parent ]

      •  this is a good point, but I think people aren't (4+ / 0-)
        Recommended by:
        wader, Calamity Jean, WarrenS, Oh Mary Oh

        quite taking your meaning.

        The way we usually look at it--that people can't do x--is kind of like saying, in 2 billion BC, that cells aren't capable of inventing the internet...

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