The universe has a Hubble constant problem

Differences in the way that the Hubble constant—which measures the rate of cosmic expansion—are measured have profound implications for the future of cosmology.

Credit: LUIS ACOSTA via Getty Images
  • The Hubble constant is used to estimate the rate of expansion of the universe.
  • There are two different ways to calculate its value, but they give different results.
  • The difference may give physicists an opening to find new cosmic laws, but there is huge uncertainty about which path to take in finding them.
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A rogue ‘pristine’ comet reveals clues about the origins of our Solar System

New studies find the interstellar comet 2I/Borisov is the most "pristine" ever discovered.

Credit: ESO/M. Kormesser
  • Researchers released studies on the composition of the interstellar comet 2I/Borisov.
  • The 'pristine' comet holds clues to the origins and evolution of the Solar System.
  • The comet, discovered in 2019, is only the second interstellar object ever observed.
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    ‘Smoking gun’ dark matter signature possibly identified

    Researchers propose a new method that could definitively prove the existence of dark matter.

    Credit: NASA, JPL-Caltech, Susan Stolovy (SSC/Caltech) et al.
    • Scientists identified a data signature for dark matter that can potentially be detected by experiments.
    • The effect they found is a daily "diurnal modulation" in the scattering of particles.
    • Dark matter has not yet been detected experimentally.
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    'Spacekime theory' could speed up research and heal the rift in physics

    Can spacekime help us make headway on some of the most pernicious inconsistencies in physics?

    Credit: marcoemilio via Adobe Stock
    • Our linear model of time may be holding back scientific progress.
    • Spacekime theory can help us better understand the development of diseases, financial and environmental events, and even the human brain.
    • This theory helps us better utilize big data, develop AI, and can even solve inconsistencies in physics.
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    New particle experiment goes against standard physics

    Results from an experiment using the Large Hadron Collider challenges the accepted model of physics.

    Credit: Imperial College London
    • Researchers working on the Large Hadron Collider experiments obtained unusual results.
    • The data suggests possible existence of new particles or interactions.
    • The findings aren't accounted for by the Standard Model of particle physics.
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