An orange triangular craft that made no sound observed in the Mojave Desert.While traveling northbound toward the China Lake Naval Facility approximately one mile from the base, I observed lights coming directly toward me. This is not unusual because there is an active airfield on base, however as the lights got closer I noticed that the aircraft looked different than the regular military aircraft. I pulled over to the side of the road and got out of my vehicle, so I could observe the craft in more detail. The craft was approximately 3000 to 5000 feet in altitude. It was triangular in shape, and the entire bottom of the aircraft glowed a dull hazy orange with about 6 or 8 brighter orange lights on the exterior of the craft. The brighter lights were not strobing as are typical with normal aircraft. While observing the craft it seemed to slow down and hover directly overhead. I would guess that it was about the size of a large jet fighter or perhaps a little bigger. No sound was coming from the craft, which would not have been the case with a typical helicopter or jet aircraft. After 20 to 30 seconds the craft again began to move southward. At that point, I got back into my vehicle and proceeded north 300 to 400 meters when I noticed a second person pulled off to the side of the road, out of his vehicle, and observing the same craft. I am a physicist who has worked on the naval base for 15 years and have never observed a craft like that before.