Was sitting outside my home talking on the phone. many planes go over my home, presumably on their way into midway/o'hare airports. i saw a single orange pulsating light traveling on a straight flightpath going from west to east. i could not see any sort of airframe, and it made no noises. it altitude was lower than flights that usually go over my home, but its altitude was higher than the medical helicopter that flies over. it speed was steady and seemed slightly faster than the flights i see going over my home. i did not see any changes in the flight path or speed the whole time i had the object in sight. about a minute later, came another orange light on the same flightpath with the same speed. i was in such disbelief that i did not think to film them with my phone camera and no one else was outside with me at the time.