Science 'Something weird' is going on with our universe

Discussion in 'Blazers OT Forum' started by SlyPokerDog, May 23, 2022.

  1. SlyPokerDog

    SlyPokerDog Woof! Staff Member Administrator

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    'Something weird' is going on with our universe: Hubble detects changes in the rate of expansion that cannot be explained by current physics
    • 'Something weird' going on with universe that can't be explained by physics
    • It is expanding at strange rate, new data from Hubble Space Telescope suggests
    • The iconic telescope has completed nearly 30-year marathon of data collection
    • Created 'milepost markers' to help precisely measure expansion rate of universe

    'Something weird' is going on with how our universe is expanding and it cannot be explained by current physics, NASA has revealed.

    Data from the Hubble Space Telescope has shown there is a huge discrepancy between the universe's current rate of expansion compared to the rate right after the Big Bang.

    The iconic orbital observatory has just completed a 30-year marathon of data collection.

    With this information, Hubble was then able to identify more than 40 'milepost markers' of space and time to help scientists more accurately measure the expansion rate of the universe.

    However, the more precise these measures become the more they indicate that 'something weird' is happening, the US space agency said.

    'The cause of this discrepancy remains a mystery. But Hubble data, encompassing a variety of cosmic objects that serve as distance markers, support the idea that something weird is going on, possibly involving brand new physics,' NASA officials said.

    [​IMG]
    'Something weird' is going on with how our universe is expanding, NASA has revealed. New data from the Hubble Space Telescope shows a huge discrepancy between the universe's current rate of expansion compared to right after the Big Bang

    Experts have been studying the universe's expansion rate since the 1920s using measurements by astronomers Edwin P. Hubble and Georges Lemaître.

    When NASA conceived of a large space telescope in the 1970s, one of the primary justifications for the expense and extraordinary technical effort was to be able to resolve Cepheids – stars that brighten and dim periodically, seen inside our Milky Way and external galaxies.

    Cepheids have long been the gold standard of cosmic mile markers since their utility was discovered by astronomer Henrietta Swan Leavitt in 1912.

    To calculate much greater distances, astronomers use exploding stars called Type Ia supernovae.

    Combined, these objects built a 'cosmic distance ladder' across the universe and are essential to measuring the expansion rate of the universe, called the 'Hubble constant' after Edwin Hubble.

    That value is critical to estimating the age of the universe and provides a basic test of our understanding of the universe.

    It can be used to predict how fast an astronomical object at a known distance is moving away from Earth, although the true value of the Hubble constant remains up for debate.

    Almost 25 years ago, astronomers also discovered dark energy, which NASA describes as 'a mysterious repulsive force accelerating the universe's expansion'.

    The new research by the Hubble Space Telescope measured 42 of the supernova mileposts – more than double the previous sample of cosmic distance markers.

    However, when it started gathering information about the universe's expansion, a discrepancy emerged.

    Hubble's measurements suggest the rate is roughly 45 miles (73 kilometres) per megaparsec, but when taking into account observations of the deep universe, this slows down to about 42 miles (67.5 kilometres) per megaparsec.

    A megaparsec is a measurement of distance equal to one million parsecs, or 3.26 million light-years.

    https://www.dailymail.co.uk/science...rate-expansion-explained-current-physics.html
     
  2. Natebishop3

    Natebishop3 Don't tread on me!

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    Well clearly it HAS to expand to keep up with Sly's enormous ego.
     
  3. Chris Craig

    Chris Craig (Blazersland) I'm Your Huckleberry Staff Member Global Moderator Moderator

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    So something weird is going on, but they have no idea what it is?
     
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  4. Phatguysrule

    Phatguysrule Well-Known Member

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    So it it expanding faster or slower? Or at inconsistent rates in different directions?
     
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  5. Phatguysrule

    Phatguysrule Well-Known Member

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    Yes, would like more information about what is weird...
     
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  6. SlyPokerDog

    SlyPokerDog Woof! Staff Member Administrator

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  7. Chris Craig

    Chris Craig (Blazersland) I'm Your Huckleberry Staff Member Global Moderator Moderator

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    The proximal areas of the universe are expanding faster than the distant areas of the universe. The current rate of speed at which the universe is expanding is also inconsistent with the original speed of expansion following the big bang.

    The variation in speed of expansion between the proximal and distant parts of the universe can probably be explained by the universe being more dense closer to us.

    They are registering one supernova a year. Supernovas in a densely packed inner universe is likely to cause greater speeds of expansion, while a more bare deep universe would of course expand at a lesser rate.

    The difference in rate of speed between current measurements and Hubble's measurements can likely be attributed to newer instruments/technology providing more accurate measurements.
     
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  8. barfo

    barfo triggered obsessive commie pinko boomer maniac Staff Member Global Moderator

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    This can be explained by the presence of a big, beautiful wall around the universe.

    barfo
     
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  9. Chris Craig

    Chris Craig (Blazersland) I'm Your Huckleberry Staff Member Global Moderator Moderator

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    It got blew down by solar winds.

    But, hey if there is a wall or border everything will collide with it and start moving inwards.
     
  10. Phatguysrule

    Phatguysrule Well-Known Member

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    Probably an extension of the Antarctic ice wall around flat Earth...
     
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  11. tlongII

    tlongII Legendary Poster

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    Global Climate Change
     
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