Elon Musk launched 6 SpaceX satellites to space and you can see them orbiting our planet from the sky. I happen to see 2 satellites fly super fast in the sky above, which looked like moving stars. For someone who's very interested in space, I find this pretty entertaining lmao.
You can check this link out to see if the satellite will orbit in your sky tonight.
https://findstarlink.com/#1529;3
It'll happen every day this week. As for why the satellites are orbiting? These are just satellites for testing. It's for allowing remote areas to have low-cast internet connectivity. I'm thinking in the middle of some sahara, you might have like 4G available or something lol.