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Moon Earth Science

Could Fossils of Ancient Life From Earth Reside On the Moon? 88

MarkWhittington writes Does the moon contain fossils of billions of years old organisms from Earth? That theory has been laid out in recent research at the Imperial College of London, reported in a story in Air and Space Magazine by Dr. Paul Spudis, a lunar and planetary geologist. The implications for science and future lunar exploration are profound. Scientists have known for decades that planets and moons in the Solar System exchange material due to impacts. A large meteor smashes into a planet, Mars for example, and blasts material into space. That material eventually finds itself landing on another planet, Earth in this case. Mars rocks have been discovered on Earth since the 1980s. Other rocks from the moon and, it is surmised, Mercury have also been found, blasted into space billions of years ago to eventually find themselves on Earth.
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Could Fossils of Ancient Life From Earth Reside On the Moon?

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  • Yes! (Score:4, Interesting)

    by hcs_$reboot ( 1536101 ) on Thursday February 19, 2015 @08:20AM (#49086523)
    That makes another good reason to go back to the Moon!
    • by Anonymous Coward

      Yes, we can definitely send more machines like Luna 16 in 1970. Dig a bit deeper, get some more dead rocks and dust, put it in a box and return it to the Earth where we have all our labs and people.

      I agree.

    • I completely agree with going back to the moon for the scientific and engineering advances it would provide, but this reason is far down the list. This is like looking for a specific needle in a trillion other needles.
    • by Tablizer ( 95088 )

      Earth rocks with fossils on the moon are probably rare enough that lots of sifting will be required. Robotic survey & collection missions are much better suited for such a task.

      It's too much money to pay a human in space garb to pick up each rock and go, "This from Earth? No...This from Earth? No...This from Earth? No...This from Earth? No...This from Earth? No...This from Earth? No...This from Earth? No..."

  • Could Fossils of Ancient Life From Earth Reside On the Moon?

    I'm sure they could, if we took some there.

    • The moon is probably a good place to store time capsules (or backups). Well, except for the meteorites and the annoying dust that gets everywhere.

    • by Anonymous Coward

      I'm slightly older then most of you, but I remember off the old asmov show, that there were large collissions from space bound objects, in our distant past. One off the spinoffs is probably the moon. Even the planetarium of my old home town used to emphasize that. So, why would you not find early protolife there? The same type of collisions occurred with and to the other planets. Why would you not find proto parts there? Give man something to shoot at other then humans and see what happens, maybe he would l

  • Let's invade the moon!
  • Get digging. (Score:5, Informative)

    by Anonymous Coward on Thursday February 19, 2015 @08:37AM (#49086651)

    The issue is we'd likely need to be digging for decades to find something that might have something, if it hasn't been broken down so much from high radiation in solar storms.
    It would be a very long search for that needle.

    Even on Earth as we find fossils, these are just fossils that are LUCKY enough to have survived all that time. The majority of skeletons aren't lucky and degrade.
    There are very likely large numbers of life we will never* know about that filled various niches, was the in-betweens of one lifeform and another as it evolved over millions of years.
    We have also just barely scratched the surface. The deeper we go, the older we are finding. (especially in the cold pole regions)
    Just recently we found that cave with stupidly old stuff in it, several billion years old if I remember.
    There are likely millions of little caves like this scattered all over the planet where life has been hidden away and protected .
    Also aliens. And pyramids.

    *unless we make time machines.

    • But... but... " The implications for science and future lunar exploration are profound". No I agree, the odds of finding something have got to be so small I can't imagine how much work you would have to go through to find something.
    • by Megane ( 129182 )
      Not only is it less likely for earth rocks to end up on the moon than the reverse (higher escape velocity), but the question wasn't if earth rocks ended up on the moon, it was fossils. Would the energy it took to get fossil-bearing rocks past escape velocity be so much that the fossils are likely to get damaged? That would further reduce the chance of find earth fossils on the moon.
      • Perhaps if a particularly large chunk got blown out and the fossil was deep inside it.

        Then again, if it's deep inside it'll be bugger to find. I for one have better things to do than splitting random rocks open just in case there's a bilobite inside. I don't think Bennet Haselton could solve this one, even if Elon Musk offered him all his money.

  • by The Real Dr John ( 716876 ) on Thursday February 19, 2015 @08:55AM (#49086765) Homepage

    This is a very silly idea. There are countless fossils still to be uncovered on Earth, including microfossils from billions of years ago in rock that has not been altered by too much heat and pressure. On the moon there are probably very, very few, if any fossils. Why would anyone waste time and money going to the moon to look for fossils rather than just spending more time carefully looking and digging on Earth? This is the silliest excuse for sending something or someone to the moon I can think of. If you want to explore the moon, go to the moon. If you want to look for fossils, dig right here on planet Earth where you actually have a good chance of finding something very interesting, and very old.

    • by Anonymous Coward

      Cause don't you know. At one point in the past the moon was really part of earth. An asteroid hit earth and broke a chunk off. This is how the moon came to be.

    • We have no known samples from our twin planet Venus. Although the current thick atmosphere inhibits spallation ejecta from escaping, was the atmosphere always as thick as today? The article suggests that sufficiently large impactors may help. Although there may never have been oceans on Venus, could there have been sub-surface pockets of water under high pressure (and temperature) that may have hosted forms of life? I would think that in-situ sample analysis on the moon or even return to Earth would be fa
  • Since one of the theories of the moons origin is from impact of an asteroid with earth, this is not completely unlikely.

  • Is it a theory or a hypothesis?

  • by PineHall ( 206441 ) on Thursday February 19, 2015 @10:08AM (#49087363)

    A large meteor smashes into a planet, Mars for example, and blasts material into space. That material eventually finds itself landing on another planet, Earth in this case. Mars rocks have been discovered on Earth since the 1980s.

    If we are finding rocks from Mars on Earth, it is likley there are rocks from Earth on Mars and possibly fossils from Earth on Mars. And I wonder about bacteria from Earth on Mars. It is possible. This complicates the "finding life on Mars" projects. Is it martian life or transplanted life from Earth?

    • by bigpat ( 158134 )

      If we are finding rocks from Mars on Earth, it is likley there are rocks from Earth on Mars and possibly fossils from Earth on Mars. And I wonder about bacteria from Earth on Mars. It is possible. This complicates the "finding life on Mars" projects. Is it martian life or transplanted life from Earth?

      There will always be uncertainty, but if we can find some trace of life on Mars and it isn't directly associated with a meteorite with a composition that could indicate it is from Earth then that would probably be good enough to rule out direct transport from Earth... but it wouldn't rule out that it was transplanted life unless it was completely different than anything we have or had on Earth. So if it is bacteria or other simple life it is going to be nearly impossible to rule out transplant theories wit

    • I would say it is much less likely- the escape velocity of Mars is half that of Earth's and the thick atmosphere would keep many smaller fragments from leaving orbit.

  • I think it I would be interesting if we found terrestrial organic contamination on the moon. As in what's called panspermia, organics from earth spreading out into space. It would be really cool if a moonbot found something like spores protected under lunar dust and wicked cool if they found a tardigrade!
    • by gewalker ( 57809 )

      I don't know, if you have a comet or asteroid impact big enough to eject material into space you have to consider that the ejecta is going to be heated by a large amount. Much of the "ejecta" is in the form of vaporized rock, much of the solid ejecta will be fractured. The fireball associated with an impact of this size is also going to be large (10's or 100's of km in diameter), so you get additional heating beyond the heating of atmospheric compression while the ejecta is departing.

      Seems like organics wou

  • Headline writer: Why ask us when you can ask Betteridge?

  • Then cross-infected suitable host planets and moons. I wouldnt be surprised to find DNA on MArs and Europa.

    Cross-infecting other solar systems is more tenuous.
  • I'm I missing something or TFA is suggesting that the earth got hit by something big enough to make an explosion with fire and heat and power big enough that some debris reach escape velocity to escape earth. And that somehow some fossils survived the trip on these debris?

Keep up the good work! But please don't ask me to help.

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