JWST captures warped supernova

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The James Webb Space Telescope (JWST) has captured images of a warped supernova, which could potentially help settle a longstanding debate in astronomy. This phenomenon is a result of gravitational lensing, where the massive gravity of a galaxy cluster, in this case, MACS J0138.0-2155, warps and magnifies the light from a distant galaxy named MRG-M0138, located some 10 billion light-years away1351113. In 2019, astronomers using the Hubble Space Telescope noted the bright light of a supernova in MRG-M0138, which was named "Requiem." A Type Ia supernova is the explosion of a white dwarf, which can occur either through a collision with another white dwarf or by accumulating enough matter from a nearby companion star1. The JWST has now discovered a second supernova in the same galaxy, named "Encore." This discovery is significant because Type Ia supernovae are used as "standard candles" to measure cosmic distances and calculate the Hubble constant, which describes the rate of expansion of the universe15. The gravitational lensing effect caused by the galaxy cluster has produced multiple images of MRG-M0138, and models predict that one of the supernova images is so delayed by its path through the cluster's gravity that it will not appear to us until the mid-to-late 2030s1513. This delay provides astronomers with a unique opportunity to predict when and where to look for these images, allowing for precise measurements of cosmic distances and the expansion rate of the universe1. The JWST's infrared observations are expected to catch the final appearances of Requiem and Encore around 2035, which could deliver new and precise measurements of the Hubble constant1. This is particularly important because there is currently a discrepancy between the Hubble constant values obtained through different methods, known as the "Hubble tension." Observations of lensed supernovae like Requiem and Encore could help resolve this issue17. In summary, the JWST's observation of the warped supernova in MRG-M0138 is a significant step forward in cosmology, offering a potential solution to the Hubble tension and enhancing our understanding of the universe's expansion.
what is the significance of the warped supernova captured by jwst
how does gravitational lensing work in capturing images of supernovas
what other celestial objects has jwst captured in its images
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