This collage features three views of Messier 106, also known as NGC 4258. The first two images show the target in visible light as seen by KPNO and the NASA/ESA Hubble Space Telescope. The image on the right is a new image from the NASA/ESA/CSA James Webb Space Telescope in the infrared.
New observations from the James Webb Space Telescope back up previous findings from the Hubble telescope that contradict theoretical predictions, suggesting the standard model theorists work from needs a revisit.Two views of NGC 4258, about 23 million light-years away, that served as a reference point in the new study. The left image was taken by the Hubble Space Telescope, and the right image came from the James Webb Space Telescope.
Hubble's landmark discovery has challenged scientists ever since, as they try to determine just how fast that expansion is with a value known as the Hubble constant.Fast forward to 1998 when two independent teams of astronomers used images from the Hubble Space Telescope to peer deeper and farther back into the universe than had ever been possible before. They discovered, shockingly, that something very weird was happening.
These paradoxical discoveries threw a wrench into the standard model of cosmology, a mathematical model of the history and evolution of the universe that told the story of its expansion from the moments after the Big Bang. The two space telescopes' findings bolster the case there is something, other than measurement error, influencing the universe's expansion rate — and that our theoretical understanding of the universe is incomplete.
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