https://metro.co.uk/2024/09/29/see-a-once-80-000-years-comet-uk-october-2024-21699657/
I’ve seen a few posts and articles about this comet and how the last time it was this close to earth was about 80,000 years ago. I think that’s super cool but I don’t understand how we would know that.
In: Planetary Science
Where objects in space are at particular times can be calculated with equations. They’re really complicated, but if you have a good computer and you know where the object is and how fast it’s moving, you can recreate where it was in the past and also predict where it will be in future.
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