Astronomers using the Hubble Space Telescope and a naturally occurring cosmic magnifying lens have captured surprising multiple images of an exploding star, research published Thursday shows.
The four images captured by Hubble were caused by light taking different paths around a massive galaxy cluster located between the exploded star and the Earth-orbiting telescope.
The cluster's gravity causes bends in space that photons follow, a phenomenon predicted 100 years ago by physicist Albert Einstein.
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