At around approx. 8:25pm I was outside my apartment and heard a passenger plane a decided to look around for it. As I looked directly above me to find the plane, I noticed a bright solid white sphere moving in a straight line from West to East with no navigational lights or noise at an altitude of 50,000-70,000 feet and a speed of 400+ mph. I then went into my apartment and got my binoculars which are 7x35 wide at 1000 yards and went back out to view the object by which time had traveled at least 3 miles and now at 55 degrees from horizon from my position. After another 2 miles past the Sandia Mountains the object dimed and did approximately three to four squiggly lines and then disappeared out of sight. There was high thin clouds to the northwest but clear skies were the object was and it was brighter than the background stars. There was also a passenger plane in the area at an altitude of 35,000 to 38,000 feet and 10 miles to the left and 1-2 miles behind the object traveling from West Southwest to East by Northeast. There were no other aircraft besides this one in the area at time of the sighting. Only one other witness my girlfriend are known at this time. No news reports in the paper or T.V. have been heard