Can someone explain this to me? I have noticed this light outside my window every night for around a year. I live in Las Vegas, and it's also noticeable in other parts of the city, but only if you're in the North side.

At first there was just one light and a few months ago another faint light started appearing on top of it (pic related, I took it this morning)

What could this be? It's not a star because it's always in the exact same place. It can't be a satellite for the same reason. I thought at first it was just a radio tower, but it's about three times the height of the mountain below it, and there is no tower visible during the day.

If you live in Vegas, take a look outside of your window. It's kind of near the Nellis Air-force Base. It's dark right now so you should be able to see it. Let me know what you guys think.