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World-first look at earliest moments of supernova explosion

Date Time World-first look at earliest moments of supernova explosion In a world-first, astronomers at The Australian National University (ANU), working with NASA and an international team of researchers, have captured the first moments of a supernova – the explosive death of stars. The never-before-seen detail was captured using data from NASA’s Kepler space telescope collected in 2017. The ANU researchers recorded the initial burst of light that is seen as the first shockwave travels through the star before it explodes. PhD scholar Patrick Armstrong, who led the study, said researchers are particularly interested in how the brightness of the light changes over time prior to the explosion. This event, known as the “shock cooling curve”, provides clues as to what type of star caused the explosion.

Scientists detect five supernovae that never been seen before

Scientists detect five supernovae that never been seen before August 5, 2021 This image shows galaxy Arp 148, captured by NASA s Spitzer and Hubble telescopes. Credit: NASA/JPL-Caltech. Stars are exploding in dusty galaxies. We just can’t always see them. Exploding stars generate dramatic light shows. Infrared telescopes like Spitzer can see through the haze and to give a better idea of how often these explosions occur. You’d think that supernovae the death throes of massive stars and among the brightest, most powerful explosions in the universe would be hard to miss. Yet the number of these blasts observed in the distant parts of the universe falls way short of astrophysicists’ predictions.

Superflares may be less harmful to exoplanets than previously thought, study shows

Superflares may be less harmful to exoplanets than previously thought, study shows
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