Driving along the 91 when notices 2 planes flying very close to each other both shining one smaller than the other very hard to see

Notice two small circle sphere like objects traveling very close to each other one behind the other very high in the sky look at my attention was they were very close to close planes usually keep a distance and they were not flying in a regular flight pattern they were very shiny it’s a very sunny day I noticed one changed direction and the one behind got very small almost too small where I couldn’t even see it anymore the one that it was following stopped mid air And made some very unorthodox aerodynamic moves that I know are planes can I do