I was outside and noticed a bright white globe moving in the sky from east to west. it was very bright and was strobing. the object was very large - about the size of a commercial jet, and it was very close. i then saw another object that looked square and was a dark shape with two red lights and two green lights on either side on the bottom. these were not flashing, just stationary. i'd say the second object was about 1/2 mile from the first. then yet another, rectangular-shaped dark object flew behind the second one on the same path and about 1/2 mile away. it had several white lights on either side on the bottom. these objects moved very slowly and surprisingly, made no sound. i would have expected to hear something since they were so close.