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National UFO Reporting Center
Sighting Report
Occurred : 8/23/2004 14:55 (Entered as : 08/23/2004 14:55)
Reported: 8/24/2004 12:33:07 PM 12:33
Posted: 8/24/2004
Location: Englewood, CO
Shape: Sphere
Duration:15 mins
white sphere(s) seen again in Denver area; perhaps colour-changing

I work at home and my connection to the office server was temporarily down, so I took the opportunity to skywatch. Having seen numerous anomalous sightings from my patio looking east in recent weeks, I scanned the sky for another. Within moments I saw a "fast-mover," a dim sphere travelling due south at a good clip -- a bit faster than, say, a jet or a satellite. Through binocs, it was circular and reminiscent of the others I've seen recently, appearing to reflect the sun a bit. It was halfway between horizon and zenith to the east. As I watched it through binocs, it travelled into a feathery cloud, and I didn't see it come out the other side. Lowering the binocs, I noted that the cloud was not very large at all, so it was odd that the object didn't come out the other side, and I looked but couldn't find it with the naked eye either. I noted that the clouds, which appeared to be cirrus and rather sparse, thus higher than cumulus clouds, were moving slowly northward.

Just a few moments later, at 3 PM, I saw this object or another one which seemingly suddenly appeared almost directly overhead. It was shining as bright as Vega but in the daytime sky. It remained absolutely motionless, mimicking a star, for about 3 minutes, while clouds approached slowly from the south. Through binocs it appeared to be a perfectly circular, white object, with the typical thin crescent of darker "shadow" area on its side opposite the sun. It remained steady and very bright as I gazed at it through binoculars. I lowered the binocs briefly as a cloud moved into the area of the sphere, and then looked again through binocs. Now I noticed what I thought was something different -- a solid BLACK sphere moving through the cloud. (Since the cloud itself was moving, for the moment I couldn't tell if the apparent movement of the object was an illusion or real.) However, I soon saw that it was the same apparent object, only when it was in front of the clouds it was pure black, and when it moved out of the cloud (or the cloud moved away from it) it became instantly pure white again against the blue sky. I watched as the apparent colour changed instantaneously. If this foreground/background colour change is a known phenomenon with rubber balloons, I've never known of it before; anyway the object did not appear to be a balloon. At 3.05 I noticed it had moved from its stationary position just south of an overhead wire to the north, by several degrees, and then it started heading to the east/northeast rather slowly, until by about 3.08 it had passed behind some trees and continued out of sight, now lower than half-way between horizon and zenith as it travelled away from me.

((NUFORC Note: We express our gratitude to this MUFON member for submitting the report. PD))