I saw something in the sky last night about 6:50 PM on October 15, 2015. It wasn't quite dark yet and the skies were mostly clear. I was sitting in the backyard swing at my house in Sandy, Utah and happened to look up about 80 degrees in elevation and toward the East. A white colored "star" appeared about as bright as Venus or the ISS would be at this time of day, yet Jupiter, Mars, and Venus are only visible in the early morning this month. None of the other planets ever appear this bright. I was sitting in the swing and used the support bar as a reference to verify it wasn't moving, at least not very fast if it was moving. I watched it for several minutes and then it started fading in brightness until it disappeared over about a one minute period. I really wished that I had my binoculars with me. A geostationary satellite would never appear that bright and an Iridium satellite (which I have seen many) would have moved. Other than calling it a UFO, the only thing I can imagine is that I witnessed a high altitude balloon. If so, it either dropped into Earth's shadow causing it to dim, or it burst. Anyone know how to find out about high altitude balloons over Utah? Another wild possibility is that it could have been a gamma ray burst, which I believe I witnessed years ago with several other people. Fred Orrell