2 metallic orbs flying in opposite directions

I saw a shiny, metallic orb flying in a straight line several thousand feet above a neighborhood. It was clearly a spherical object and not an airplane or helicopter. I tried to better position myself but when I looked back up 2 seconds later, the orb was gone. In the video I made, I noticed there was another, similar object flying in the opposite direction.
There were no flares, lights, emissions or sounds, at least from what I could tell. It looked like a shiny, metallic ball flying in a straight line at relatively high speed.
I have a video of the incident as well.