excuse copy/paste
just interested what you might have experienced that you couldn't explain.
my own story happened in the mid 90's.was driving back from bath (uk) with my friend at night.i was driving past sally in the woods.to the right you could see all of bath,there were no stars in the sky.suddenly my friend pointed and said what was that.
looking i saw a white glowing sphere hovering above bath.at first i thought it must be a helicopter floodlight,but there was no sound at all.
all of a sudden it just shot off at high speed (not accelerate,i mean just instantly shot off.it also didn't make a sound
may not have been aliens,but it definitely wasn't a helicopter/jet.