I woke my husband to look out the window. I didn't trust what I was seeing with my own eyes.My husband and I were spending the night at the home of friends, in Keystone, Colorado. This is a resort town in the mountains and because it's far from city lights the night sky was filled with stars against a pitch black sky. I awoke about 4 in the morning and because it was chilly I decided to close a window. I looked up at the sky and was in awe of the stars. One particular star looked a little brighter than others so it caught my attention. As I stared at what I thought was a star--I thought I saw it move. I kept staring...and finally realized that it was moving...not a lot--but up and down and sideways. Then shortly after fixing my sights on this "star" and noticing that it was moving--I saw a short burst of white light. I kept staring and watched as every few minutes other short bursts came from this star--but not always from the same spot. Sometimes to the right...sometimes to the left...sometimes above the "star"--and occasionally (very occasionally) from further out to the side...further than most times. My mind was racing for an explanation. A UFO was not the first thing that came to mind. Frankly--nothing came to mind other than sheer wonder. So I sat down on the bed and just watched...for maybe 15 minutes. Finally I thought I'd better wake my husband because he simply would not believe me if he didn't see for himself. So I woke him up and got him to come to the window. He also saw what I've just described but had no explanation. Unfortunately he had taken a sleeping pill earlier and wasn't as thrilled with this discovery as I was...or as curious. He went back to bed but I kept watching...and wondering. After about 30 minutes I noticed something that took my breath away. Another "star" of a lesser intensity was located directly below the one I had been watching...and it was moving IN TANDOM with the brighter "star." Each moved slowly one way then another--up a little then down a little. So I started searching the sky for other "stars" that moved like these and found ! one more to the right. It didn't move in tandom but it was moving just like the other two. All three "stars" exhibited the light flashes I described earlier and in the same patterns. Occasionally I thought perhaps I saw a red light but that's tough to tell for sure because I was staring for an hour at this display. At one point I did see what I thought was a very fast "shooting star" to the left side of the two moving in tandom. It's not that unusual to see a shooting star when the sky is that dark, but usually they don't move as quickly as this one. And also, normally you can track them in the sky at a longer distance than what I saw. This was so quick and short I questioned if I saw it at all--but I'm sure I did. I sat there for about an hour all total--and I'm not sure what time it was although I'm guessing all this started about 4 in the morning. (It was so dark I couldn't find my watch and there was no clock in the guest room.) Finally, the sky was starting to lighten with the rising sun so the "stars" were fading and so was I. As much as I hated to, I went back to bed. I told everyone in the morning what I saw and I was so grateful I had woken my husband to support my story. (Not that no one would believe me, but my husband is a very respected, retired businessman. Definitely "no nonsense" and not one to say he saw a UFO. In fact, he still maintains there has to be some logical explanation.) As for me, I'm 54 years old, and semi-retired. I don't quite know what to think, but I know what I saw. I've never said I believed in UFOs, but I've always left room for the possibility that it is possible. In fact--when I returned from the mountains this afternoon, I went on-line to find a "UFO Reporting" site and this was the first time I've ever even typed in "UFO" on my computer. It isn't something that interested me--until now. So--that's my story and I'm sticking to it!((NUFORC Note: We are grateful for the excellent report. We believe that the first possibility to be addressed would be a celestial body, possibly a "twinkling" star. PD))