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  1. Akikora Reply
    Then came and the Hubble Space Telescope (HST) observations of very distant supernovae that showed that, a long time ago, the universe was actually expanding more slowly than it is today. So the expansion of the universe has not been slowing due to gravity, as everyone thought, it .
  2. Malalmaran Reply
    Apr 10,  · Accelerating Universe: Not As Fast? A UA-led team of astronomers found that the type of supernovae commonly used to measure distances in the universe fall into distinct populations not recognized before. The findings have implications for our understanding of how fast the universe has been expanding since the Big Bang.
  3. Yozshurn Reply
    Candidate drivers for an accelerating universe. By combining such measurements of supernova distances with results from galaxy clustering and from fluctuations in the cosmic microwave background, consensus has emerged that the universe at present has about 70% of its energy density in dark energy, about 25% in another poorly understand substance known as dark matter, and only 5% in the form of.
  4. Dogor Reply
    Oct 27,  · In fact, if the universe didn’t accelerate or decelerate at all, which is an old proposal revisited in this new paper, new physics would still be required. These days the important point is that if.
  5. Zoloshura Reply
    Mar 30,  · Our universe was formed in the Big Bang, billion years ago, and has been expanding ever since. The key piece of evidence for this expansion is Hubble's law, based on observations of galaxies Author: Dr Robert Massey.
  6. Kazralkree Reply
    accelerating universe A phrase used to refer to the discovery that the Hubble expansion is not slowing down, as one would expect if only gravity were acting on the galaxies, but is actually speeding up as .
  7. Brakora Reply
    May 02,  · One of the most important recent discoveries in cosmology--and science in general--is that the expansion rate of the universe is not staying steady or getting slower, as most scientists had assumed; on the contrary, it is accelerating.4/5(22).
  8. Mozuru Reply
    To Infinity and Beyond: The Accelerating Universe Dark energy is cosmology’s biggest mystery—an anti-gravitational force that confounds the conventional laws of physics. It makes up more than two-thirds of the cosmos, but science is still grappling to explain what dark energy actually is.