I spotted the UFO while driving southeast on Interstate 10 at around 9:00 p.m.
Just before the I-75 exit, I saw a long orange beam of light slanted at an approximate 20° angle from the horizon, off to my right, just above the tree line. At first I thought it was a glare of light on my windshield, possibly from a street lamp.
As I passed under I-75 and away from any light sources, it was very clear that the light source came from the sky.
From my point of view, the beam of light was lowest to the right and highest to the left. The beam was narrow and long, from my standpoint, it appeared as a few centimeters wide and 6" to 10" long, although this is obviously a very rough estimate.
It also seemed to have a point of origin from which the orange streak emanated. At the point of origin the light was whiter and of a higher intensity and located on the high/upper end of the streak.
Based on this observation, it presented the appearance of a rocket or shuttle launch. There were no reported launches for April 29.
The object moved across my field of vision from right to left as I headed Southeast on I-10, thus it appeared to be moving North. Several minutes into its flight, as it appeared to cross the center of I-10, 2 additional points of light appeared and the orange streak disappeared. The additional points of light appeared above and below the main point of light which continued on its original trajectory to the North.
The 2 additional points of light initially moved away from the central point in opposite directions. Several seconds later these points of light lost their brilliance and appeared to fall slowly toward Earth. My speculation at the time was that these were perhaps booster rockets which detached and were falling back to Earth after their fuel was spent. Several seconds after detaching from the main point of light the smaller 2 points of light became invisible.
The main point of light continued to the North, seemingly on the same trajectory or path across the sky for several minutes.
Probably 10 to 15 minutes after noticing the original streak of light, the small point of light that had continued North was now far to my left; yet still well above the tree line on the left side of the road.
The point of light appeared to explode in a large ball of white light. The ball of light expanded outward from itís point of origin at a high velocity, quickly reaching a larger than moon sized circumference from my point of view, before quickly fading away completely. The outer ring of this ball of light was bright white, and the interior of it was a muddled gray/white, it appeared as though jagged streaks of white electricity emanated from the central location of the explosion outward to the ring that formed the outer barrier of the sphere.
The entire explosion lasted only several seconds, perhaps 5 or so, before the sphere faded. The sphere itself reminded me somewhat of those plasma balls you see in science gift shops or Spencerís. Except that there was no inner ball from which the streaks of light came from, and a solid, thick, white, outer edge to the sphere.
After the white spherical explosion faded there was no trace of the UFO. My fiancť was witness to this event.