It was moving approx 10,000 to 15,000 ft. @ high speed, no wings and it was climbing rapidly toward the northeast.

I was in my back yard watering plants when I heard a large jet to my south banking toward the east. Living near the DFW airport and other smaller airports I look up quite often to identify aircraft. The aircraft I was looking at was a large USAF or Civilian aircraft cargo type gray in color. I was trying to see the markings when I noticed another very large cigar shape craft to my right traveling @ a high rate of speed with a climbing attitude. This cigar shaped craft did not appear to have wings or any to stabilize its flight. It was coming from the northwest gaining altitude as it traversed. Living very close to DFW airport this did not appear to be any aircraft I had witnessed in the past. Also, as former military I was trained to identify several aircraft as an Antiaircraft missile team chief. The altitude I would estimate @ first sight was 8,000 to 10,000 feet and as I watched it gain altitude till vanished it traveled several miles. Weather conditions were clear sky, no clouds. The object made no sound as I observed it. I have no pictures and rely only on my profession training to observe and identify aircraft.