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Moon Earth Space Science

Oxygen From Earth's Atmosphere May Be Traveling To the Moon's Surface (theverge.com) 67

An anonymous reader quotes a report from The Verge: New research shows that oxygen from Earth could be journeying all the way out to the Moon, where it then gets lodged inside the lunar soil. It's a process that's likely been happening for 2.4 billion years, ever since oxygen formed around our planet, meaning the Moon's soil may contain trapped particles from Earth's ancient atmosphere. This oxygen exchange, detailed in a study published today in Nature Astronomy, supposedly occurs for just a few days during the Moon's 27-day orbit. Most of the time, the Moon is constantly being blasted with solar wind -- fast streams of charged particles emanating from the Sun. But for five days of every lunar orbit, the Moon passes into Earth's magnetotail, the portion of the planet's magnetic field that stretches outward away from the Sun. This tail shields the Moon from the solar wind, and allows charged oxygen ions from Earth to travel to the lunar surface, according to the study. That means the Moon -- a dead rock incapable of supporting life -- is being showered with the byproducts of life here on Earth. In fact, the source of most of the oxygen in our atmosphere is biological, created by plants during photosynthesis. It's a process that experts have suspected for a while but haven't been able to confirm until today. Researchers have also suggested that other atmospheric components, such as nitrogen and noble gases, are getting to the Moon this way based on lunar soil samples.
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Oxygen From Earth's Atmosphere May Be Traveling To the Moon's Surface

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  • Here come the mining operations.
    • by Jack9 ( 11421 )

      Just a matter of time. I'm betting in the next 100 years.

    • by Z80a ( 971949 )

      They probably will go after the lunar dust first.
      That thing is abrasive as hell, and probably useful in some industry.

      • They probably will go after the lunar dust first. That thing is abrasive as hell, and probably useful in some industry.

        True, that.

        Early lunar habitats will be built of cinderbrick and mortar made from regolith. It is very likely that a strong enough construction material can be made by simply sifting the regolith for the right size particles, adding water, and pouring the slurry into forms.

        It probably won't even need to be baked. If baking is necessary, then that can be easily done in solar ovens using batch processes on a two week schedule.

        • Early lunar habitats will be built of cinderbrick and mortar made from regolith

          No, there won't be any lunar habitats because they are hugely expensive, and rather pointless.

          • No, no, no, you've got it all backwards.

            With the tremendous amount of raw material on the lunar surface, intense solar power, and reactionless engines, there will not only be huge penal colonies providing cheap labor to the regolith cement factories, but habitats at the Lagrangian points and deep space probes will be built of concrete.

            Do you really think all those objects in the asteroid belt are natural? Did it never occur to you that some of those near Earth orbit objects might be used by the bug eyed

  • by Anonymous Coward

    Clearly the moon is robbing us of resources without contributing anything back. It poses an existential threat to our way of life. I would like president Trump to look into this personally and takes steps to ensure that this theft of our resources does not happen again. Perhaps a fourth month ban on moon cycles until a reasonable course of action can be decided upon?

    • Re: (Score:2, Funny)

      by hughbar ( 579555 )
      Yes agree. We should certainly ban these tentaculous, slimy, terroristical, atmosphere stealing Selenites from travelling to the US. The ban can, of course, be rescinded when Melania cuts the tape on Trump Tycho, the greatest, cratierist hotel ever.
  • Maybe in some strange parallel universe, this will be the next habitable piece of rock in the solar system.

    As the Moon spins out from Earth's gravity, it collides with a large asteroid, heating the Moon, warming up, starting planetary thermodynamics, releasing all this stored "stolen" life giving elements into the space around the Moon, but kept in place by its' new gravitational strength.

    Then ultimately picked up by the sun in just the right spot...

    • kept in place by its' new gravitational strength.

      What "new" gravitational strength are you talking about? If Ceres were to collide with Luna, Luna's gravity would hardly be changed. Hell, if the entire Asteroid Belt were to collide with Luna, you might see a 5% increase in Lunar gravity. Maybe....

  • How long would it take for an oxygen ion to make that trip? How fast are these particles moving? Wouldn't it have to be within that five day period while the moon is shielded?

  • OK, somebody finds a way of sending all our excess CO2 to the moon, fast.

  • by Anonymous Coward

    The Monolith needs to breathe too.

  • I was always told that heavier molecules like oxygen tend to stay towards earth's ground and lighter gases like helium are at the top of our atmosphere. How they manage to get oxygen out of this is beyond me.
    • by ichthus ( 72442 )
      I came here wondering the same thing. Also, how are these O2 molecules reaching escape velocity [wikipedia.org] to actually leave our atmosphere and travel to the lesser mass of the moon? Label me a skeptic.
  • At some point in the 70's, astronomers believed that normal planetary formation processes, for a planet of similar size and composition as Earth, would inevitably lead to a very dense atmosphere like Venus. Earth ended up with a small atmosphere because it had a giant, close-orbiting moon that "stripped away" particles from the very edges of the atmosphere. Therefore we should be thankful for this giant moon, which is probably very rare for a planet the size of Earth.

    (in fact Asimov says in one of his later

  • Oxygen is created by fusion. Likely from a star. [wikipedia.org] Oxygen isn't created by photosynthesis, unless TFA is specifying only diatomic oxygen.
  • Just one more way we are polluting the environment! The EPA needs to get on this stat!

    Actually, maybe NASA could convince people this is a legitimate problem so they will get behind funding a moon base.

  • The news about the oxygen leaving the atmosphere dated from last September. So, were they expecting that the oxygen leaving would try to avoid the gravitational pull of the moon or something?

    • by Eloking ( 877834 )

      The news about the oxygen leaving the atmosphere dated from last September. So, were they expecting that the oxygen leaving would try to avoid the gravitational pull of the moon or something?

      What would happen next? They'll find out that some oxygen reach the sun?

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