Astronomers spot multiple images of a distant supernova

Albert Einstein first recognized that a massive, dense object in the sky can act like a lens that can bend and focus light from behind it, known as gravitational lensing. Strong gravitational lenses can magnify and even create several copies of the background image. Recently, a team of scientists discovered a rare, quadruply-lensed supernova, copiedContinue reading “Astronomers spot multiple images of a distant supernova”
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