We only have one moon of any size that we know of - earth temporarily captures asteroids a lot, but they’re not in a long-term stable orbit and so only orbit the earth for a few years before escaping
I’ve heard people describe the asteroid Cruithne as earth’s second moon (the chat show QI did a bit on it, and it’s in a Steven Baxter novel). But I think that’s kind of a misleading description - it orbits the sun not the earth, just in a way that regularly syncs up with the earth’s orbit.
I think that technically we have two ‘moons’ already. Just that the other one is super small and doesn’t really have much effect on the planet.
Sorry that this didn’t answer your question, and feel free to correct me if I’m wrong.
We only have one moon of any size that we know of - earth temporarily captures asteroids a lot, but they’re not in a long-term stable orbit and so only orbit the earth for a few years before escaping
There’s a good gif on this page: https://en.m.wikipedia.org/wiki/2020_CD3
Thanks for the heads-up. It would appear I was wrong.
I believe this is what they’re talking about https://www.businessinsider.com/puzzling-near-earth-asteroid-chunk-moon-dangerous-space-rocks-2023-10
I’ve heard people describe the asteroid Cruithne as earth’s second moon (the chat show QI did a bit on it, and it’s in a Steven Baxter novel). But I think that’s kind of a misleading description - it orbits the sun not the earth, just in a way that regularly syncs up with the earth’s orbit.