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NASA's latest supernova image could tell us how fast the universe is expanding
The James Webb Space Telescope has captured a supernova image that could help scientists compute for the Hubble constant.
The James Webb Space Telescope's Near-Infrared Camera (NIRCam) captured a curious sight in a region 3.6 billion light-years away from Earth: A supernova that appears three times, at three different periods during its explosion, in one image. It is also gravitationally lensed — that is, there's a cluster of galaxies between us and the star that served as a lens, bending the supernova's light into multiple images. The supernova and the Hubble constant value derived from it need for be explored further, however, and the team expects future observations to "improve on the uncertainties" for a more accurate computation.
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