2 incidents, 5 min. apart(approx.) bright light hovering, about 300 ft. above, then fastest 90° turn/and speed we ever saw .

first time I said this..  it was dark, and we were working in our garage, I went inside to get some tea, saw this light and called for my husband to see this thing.... we contacted the airforce and local airport to see if they knew about it..bright light, no sound about 300 feet above us, and made a 90° turn accelerating so fast w/ no sound at all then we looked at ea. other and in about 3 min. another one showed up repeating the same thing... this was a long time ago, in the early 90"s people didnt talk about it then...we let it go...dont want to be labeled as a kook... etc.. I work for General Motors, my hubby and I were married for 15 yrs.. I think this is a very unusual thing to see, and if it helps you in any way, that is good...