Orange objects appear over Gretna, Nebraska.I was sitting on the patio facing west when I noticed two orange objects coming toward my position. As an ex-USAF I know the characteristics of modern military aircraft. These aircraft were anything but ordinary. The objects flew together, there vector was west to east. The objects first appeared they were at traveling at approximately 45 degrees above the horizon.The objects appeared to be under intelligent control. When I first saw the objects they were moving at a high rate of speed. After approximately 30 seconds they appeared to slow down. The objects traveled together for approximately 1 minutes when one of the objects disappeared from sight. It just appeared to vanish from sight.The lone remaining object appeared to slow down considerably, stop and then alter course. The object stopped for approximately 10 seconds before altering its course. The new vector was south by southwest. After altering course the object appeared to pick up speed rather quickly and began ascending. The object was approximately 60 degrees above the horizon when I lost sight of it. I thought that was unusual experience and I turned my gaze back to the west. I noticed the second object was once again visible and appeared once again to be bright orange. The object was still silent and had no running lights whatsoever. Once the object re-appeared I tracked it’s flight path. The object appeared to follow the identical flight path of the first object. The object also had the exact same flight characteristics of the original object. The second object appeared to slow down considerably, stop and then alter course. The object stopped for approximately 10 seconds before altering its course. The new vector was south by southwest. After altering course the object appeared to pick up speed rather quickly and began ascending. The object was approximately 60 degrees above the horizon when I lost sight of it. Unusual characteristics: I could not hear any sound coming from either object. Both objects were a brilliant orange in color. Almost like the color of orange sparkling off a diamond a deep fire like orange color. I can’t say that I have ever seen this color before. Words fail to adequately describe the true color of the objects. These objects did not have the characteristic blinking lights found on military and civilian aircraft. When the objects appeared to stop it was as if they were floating effortlessly.I have no idea what the objects were but the experience was very interesting.