There has been a lot written lately in cosmology circles about the so-called "Hubble Tension", which refers to a discrepancy between the results of two methods for measuring the universe's rate of expansion.
The result of calculations using data provided by the European Space Agency's Planck satellite from its mapping of the cosmic microwave background radiation left over from the Big Bang (which aligns with the accepted standard model of cosmology), and those using the Hubble Space Telescope's measurements from the redshift of certain types of stars don't match, with the Hubble's numbers showing a faster rate than the Planck's. But there were questions about the Hubble data's accuracy, with some wondering if dust or light from nearby stars or galaxies could be interfering with its measurements from some its more distant targets.
So astronomers called in the James Webb Space Telescope to double check the Hubble's results. The JWST has greater resolution in infrared light, allowing it to see through any dust and make more precise measurements. When the Webb data was analyzed, it showed the same results as Hubble, all but eliminating measurement error as a cause for the Hubble Tension.
https://science.nasa.gov/missions/w...3__d5nFtGFVYUcLgXA_aem_zmF60KF8phjTXbtZ2Rw57w
Webb telescope's largest study of universe expansion confirms challenge to cosmic theory
So what happens now? That's a great question. The search for answers is ongoing.
The result of calculations using data provided by the European Space Agency's Planck satellite from its mapping of the cosmic microwave background radiation left over from the Big Bang (which aligns with the accepted standard model of cosmology), and those using the Hubble Space Telescope's measurements from the redshift of certain types of stars don't match, with the Hubble's numbers showing a faster rate than the Planck's. But there were questions about the Hubble data's accuracy, with some wondering if dust or light from nearby stars or galaxies could be interfering with its measurements from some its more distant targets.
So astronomers called in the James Webb Space Telescope to double check the Hubble's results. The JWST has greater resolution in infrared light, allowing it to see through any dust and make more precise measurements. When the Webb data was analyzed, it showed the same results as Hubble, all but eliminating measurement error as a cause for the Hubble Tension.
https://science.nasa.gov/missions/w...3__d5nFtGFVYUcLgXA_aem_zmF60KF8phjTXbtZ2Rw57w
Webb telescope's largest study of universe expansion confirms challenge to cosmic theory
So what happens now? That's a great question. The search for answers is ongoing.
