New finding suggests supernovae are likely suppliers of dust to early, young galaxies. Supernovae, the explosive deaths of stars, are some of the universe’s biggest bursts of energy and light. In fact, when they erupt, one supernova can shine even brighter than an entire galaxy. It’s a fitting r
Images from NASA’s James Webb Space Telescope’s MIRI reveal large amounts of dust within two Type II supernovae, Supernova 2004et and Supernova 2017eaw , located 22 million light-years away from Earth in spiral galaxy NGC 6946. The large amounts of dust found around these supernovae support the theory that supernovae played a key role in supplying dust to the early universe.
It’s a fitting reason for NGC 6946, located 22 million light-years away from Earth, to be nicknamed the Fireworks Galaxy. In the past century, nearly a dozen supernovae have been observed flashing in the arms of this galaxy.James Webb Space Telescope “Direct evidence of this phenomenon has been slim up to this point, with our capabilities only allowing us to study the dust population in one relatively nearby supernova to date – Supernova 1987A, 170,000 light-years away from Earth,” said lead author Melissa Shahbandeh of Johns Hopkins University and the Space Telescope Science Institute in Baltimore, Maryland.
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