ELI5, Upcoming comet? 324 viewsJanuary 1, 2024 Question100.55K January 9, 2023 0 Comments So this comet was recently discovered, but scientist say it last came 50,000 years ago. How do we know this? Thanks in advance! In: 7 5 Answers ActiveNewestOldest Anonymous Posted January 9, 2023 0 Comments Scientists can work out from the comet’s direction, mass, speed, etc., it’s orbit around the sun. From there, they can work out when it last passed by. You are viewing 1 out of 5 answers, click here to view all answers. Register or Login
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