Extraterrestrial life News

Could ancient Earth fossils make their way to the moon?

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File:Moon nearside LRO.jpg
near side Moon/NASA

One space science team tried measuring the impact on fossilized diatoms, according to New Scientist:

The team powdered rock containing these fossils then mixed it with water and froze it to replicate a meteoroid. They then fired it into a bag of water using a large gas-powered gun. The force of the gun mimics what happens when a nearby impact launches a rock into orbit, and the rapid deceleration and high pressures of hitting the water simulates smacking into the moon at high speeds.

None of the fossils survived perfectly intact, and the team found fewer and fewer recognisable fragments as they ramped up the impact speed from around 500 metres a second to a likely meteorite impact speed, around 5 kilometres a second. But being able to recover anything at all is promising, says Burchell. Because Earth is so geologically active, some rocks on this planet containing evidence of past life have been destroyed, but any fossils found on the moon would be better preserved. More.

Among hundreds of lunar samples, none have been meteorites from Earth though. Dense atmosphere and high gravity are a barrier. But only further exploration would settle the matter.

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One Reply to “Could ancient Earth fossils make their way to the moon?

  1. 1
    bornagain77 says:

    A few notes on the design that is readily apparent to anyone who looks at microscopic photograph of a diatom:

    Diatoms – photo gallery
    http://www.livescience.com/462.....atoms.html

    The Air You’re Breathing? A Diatom Made That – June 10, 2014
    Excerpt: Diatoms are tiny — five to 10 of them could fit on the head of a pin — but these single-celled algae play an immense role in keeping the planet’s ecosystem working. They’re important mediators of carbon and oxygen cycles, an integral component of marine food webs and the principal cyclers of silica, which constitutes about one-quarter of the Earth’s crust.
    Diatoms incorporate that silica into their beautifully ornamented glass cell walls, whose intricate patterns have captivated researchers for centuries. Diatom species are distinguished largely on the basis of their cell-wall features and, increasingly, differences in their DNA sequences. No one really knows how many different diatoms are out there, but conservative estimates suggest around 100,000 to 200,000 species, making them among the most species-rich lineages of eukaryotes.
    http://www.livescience.com/462.....enome.html

    Diatoms – Google Images
    https://www.google.com/search?q=diatoms&client=firefox-a&hs=dUw&rls=org.mozilla:en-US:official&channel=np&source=lnms&tbm=isch&sa=X&ei=ghjYU47xE4y2yAS09oKgAw&ved=0CAgQ_AUoAQ&biw=1280&bih=611#channel=np&q=diatoms&rls=org.mozilla:en-US:official&tbm=isch

    Nature: 3.8 Billion Years of R&D – October 2, 2012
    Excerpt: Diatoms can feed, speed the world: We are surrounded by bounteous resources we can hardly imagine: microscopic organisms in water that live in glass houses, called diatoms. PhysOrg writes, “Ancient diatoms could make biofuels, electronics and health food—at the same time.” Researchers at Oregon State are creating a “photosynthetic biorefinery,” the article says, getting the little nanofactories to make customized products by special order. Give them water, some minerals and sunshine, and they could make a steady stream of affordable, eco-friendly products: biofuels, biomedical products, and even semiconductors. “The key to all of this is the diatom itself, a natural nanotechnology factory,,,”
    http://crev.info/2012/10/natur.....ars-of-rd/

    Diatom Evolution a Mystery – August 11, 2012
    Excerpt: They have already played a significant role in the global cycles of carbon and nitrogen, and are responsible for large sediments of silica including diatomaceous earth.,,,Gross described many amazing facts about these microbes (Diatoms) that live in glass houses:
    *“they have a very efficient way to dissipate excess solar energy, known as non-photochemical quenching.”
    *“In a time span of less than 200 million years, diatoms have branched out into a multitude of species, which can be as genetically different as humans and fish.”
    *“While we might want to call diatoms ‘plantimals,’ these things are much more complex than we think,” Chris Bowler says.
    *“Like animals, for instance, diatoms possess a complete urea cycle.… the cycle enables diatoms to recover quickly after prolonged periods of nitrogen limitation.”
    *“…diatoms have a huge influence on geochemical cycles and our climate.”
    *“Diatoms fix as much carbon dioxide as all the rainforests of the world combined.…”
    *“The silica frustules with their intricate nanoscale patterns can make any nanotechnologist jealous. Nature can produce such structures at ambient temperature and under benign conditions, an achievement that our technology cannot match yet.”
    *“Diatom adhesives are of interest for two opposite reasons — some may want to mimic bioadhesives like these to produce better glues that work under difficult conditions, for instance under water. Others want to stop diatoms from sticking to things under water, such as ships.
    http://crev.info/2012/08/diato.....a-mystery/

    Verse and Music:

    Isaiah 6:3
    And they were calling to one another: “Holy, holy, holy is the LORD Almighty; the whole earth is full of his glory.”

    Johnny Cash and Rosanne Cash – September When It Comes – a song about life and mortality
    http://www.youtube.com/watch?v=J2WilM6ljUg

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