three orange light foloowing each other, east to westwatched airliner in the sky at about 10,000 ft (close to O'Hare) when I spotted a big red light beyond it. I had an airplane in sight for reference and this was not an ordinary aircraft. It went approximately east to west, not too fast, gaining altitude until it disappeared in the clouds. As soon as it disappeared, another orange light appeared, following the same flight path. It was about 20 seconds behind the first one, way too close for a regular airliner distancing. I ran inside to get my telescope pointer (magnification @20x) and looked at it through it. I did not see any body, just an orange light. As soon as this one disappeared a third one showed up, following the same flight path. Again, I looked at it through my telescope pointer and it did not look like an aircraft. All I could see was orange light moving in the sky, east to west. There was no other lights, or aircraft after this one. Strange since we live so close to O'Hare.