ELI5, Upcoming comet? 326 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 Orbits are measurable and quite easy to model(within limitations). If you measure orbital parameters of something you know where it was in the past and you know where it’s going to be in the future. You are viewing 1 out of 5 answers, click here to view all answers. Register or Login
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