A brilliant light detected by ’s James Webb Telescope (JWST) in a galaxy three billion light years from Earth is believed to be the $10 billion scope’s first observation of a dying star exploding.Formally known as a supernova, it is the ‘last hurrah’ that occurs when the star runs out of fuel. This causes the pressure to drop, in which the cosmic object expands to at least five times the mass of our sun – which is the size of about 333,000 Earths – and then detonates, releasing tons of debris and particles.The stellar explosion occurred in the galaxy, SDSS.J141930.11+5251593, where JWST snapped images showing the light of an object get dimmer of a span of five days - a clue that sparked the theory of a supernova.
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