Cluster if galaxy in earth's back yard

Discussion in 'Astronomy, Exobiology, & Cosmology' started by timojin, Dec 23, 2016.

  1. timojin Valued Senior Member

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    How can it be we just discovered in our back yard
    Science
    Scientists just discovered a huge cluster of galaxies hidden in Earth’s backyard
    Mike Wehner,BGR News 15 hours ago

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    A team of astronomers from several corners of the globe just discovered a massive collection of galaxies that they didn’t even know was there. That wouldn’t normally be anything out of the ordinary — after all, scientists find new things in space all the time — but what makes this discovery particularly special is that the the giant cluster is actually pretty close to us, relatively speaking.


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    It’s called the Vela supercluster, and it might be the largest structure in the known universe, measuring a massive 370 million light years across, and up until now it was hidden from the view of scientists. Our view was obscured by the huge clouds of dust and gas that exist in our home galaxy of the Milky Way, and its existence came as a surprise to even the most seasoned star gazers.

    “This is one of the biggest concentrations of galaxies in the Universe – possibly the biggest in the neighbourhood of our Galaxy, but that will need to be confirmed by further study,” said Matthew Colless, Professor at ANU Research School of Astronomy and Astrophysics said of the discovery.

    “I could not believe such a major structure would pop up so prominently,” Professor Renée Kraan-Korteweg, who has spent over a decade studying this particular region of space, noted.

    But aside from just being there, the existence of the Vela supercluster could help to explain the behavior of our own Milky Way. Our galaxy’s has always moved slightly different than scientists would predict based on the arrangement of known nearby galaxies and clusters. Now, adding Vela into the mix might be the missing piece researchers didn’t even know they were looking for.

    https://www.yahoo.com
     
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  3. origin Trump is the best argument against a democracy. Valued Senior Member

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    The rest of your post explains how.
    Is there something you wanted to discuss?
     
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  5. The God Valued Senior Member

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    We do not know what is there in our backyard, but we do know that 1.3bly away two small BHs merged.
     
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  7. paddoboy Valued Senior Member

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    As per the article, that most would have read...... from the OP article....
    " and up until now it was hidden from the view of scientists. Our view w
    as obscured by the huge clouds of dust and gas that exist in our home galaxy of the Milky Way,"


    For the information of others ignorantly obfuscating and ignoring what the article itself says......
    The binary BH collision 1.3 billion L/years away, evidenced by gravitational radiation, is not stopped or hindered by dust etc.
     
  8. timojin Valued Senior Member

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    Yes the article says in the back yard if the earth . To me the back would be the MOON but not billions of L/years
     
  9. Xelasnave.1947 Valued Senior Member

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    Probably the use of backyard is not helpful and if used perhaps mention where we find the fence line.
    The news is not new but a wonderful discovery.
    Alex
     
  10. paddoboy Valued Senior Member

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    The backyard refers to the local group of galaxies and probably other associated gravitationally bound clusters.
     
  11. origin Trump is the best argument against a democracy. Valued Senior Member

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    I think they were just implying that it is relatively close on a cosmic scale.
     

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