The doomed star, a type called a red supergiant, resided in a dwarf galaxy and exploded at the end of its relatively short lifespan. Also read: https://www.dnaindia.com/science/report-isro-s-reusable-rockets-will-cut-costs-be-more-environment-friendly-3000615“Red supergiants are luminous, massive and large stars, but they are much cooler than most other massive stars — that’s why they’re red,” Chen said. In the second image, the explosion is only a fifth as hot as in the first. The remnant of the exploded star most likely became an incredibly dense object called a neutron star, Chen said. A phenomenon called strong gravitational lensing explains how Hubble was able to obtain three images at different times after the explosion.

Source: dna November 10, 2022 04:05 UTC