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Old 16th October 2021, 08:20 AM   #124
Mike Helland
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Join Date: Nov 2020
Posts: 2,330
Speaking of gravitational lensing. This is pretty amazing.

https://scitechdaily.com/supernova-d...g-in-16-years/

An enormous amount of gravity from a cluster of distant galaxies causes space to curve so much that light from them is bent and emanated our way from numerous directions. This “gravitational lensing” effect has allowed University of Copenhagen astronomers to observe the same exploding star in three different places in the heavens. They predict that a fourth image of the same explosion will appear in the sky by 2037. The study, which has recently been published in the journal Nature Astronomy, provides a unique opportunity to explore not just the supernova itself, but the expansion of our universe.
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