Over the next few years, astronomers will have a new tool for examining the cosmos: the Vera C. Rubin Observatory. Situated at the top of a mountain in Chile, the observatory aims to discover the secrets of the most mysterious matter in the universe — dark matter. Astronomers know that dark matter makes up 27% of the universe, but it is extremely difficult to detect because it doesn’t interact with light of any kind. To study it, scientists have
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