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Dr. Swapnil
March 15, 2024 11:29 AM
Astronomers utilizes James Webb Space Telescope and Hubble Space Telescope to verify inconsistency in Universe expansion rate.
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Universe expansion rate vary depending on observation points, this condition is known as Hubble Tension.
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On February 6, In Astrophysical Journal Letters recent findings are published it confirms the discrepancy and measurement error.
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Adam Riess, Noble prize winner said that we misunderstand the fundamental of the Universe.
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Universe's expansion rate is described by using Hubble Constant. It is derived by using two methods.
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First method is Cosmic Microwave Background (CMB) shows Hubble Constant around 67 Km/s/Mpc.
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Second method use Cepheid variable stars. Scientists use this as cosmic distance ladder.
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By using Cepheid variable star it shows higher Universe expansion rate at 74 Km/s/Mpc. New value challenges existing models.
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Initially all thought as a measurement error but JWST observations validated Hubble telscope accuracy.
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Recent studies highlighting the need for deeper understanding of our Universe.
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