UFO?

If you look very very closely, you can see a streak of pink in the red sky. My uncle, Tet, Karen (my cousin) and I were driving through the middle of the sticks, coming back from the Blue Mountains when we saw this curious pink light hovering....going down in a diagonal line very very slowly and then it stopped at a position abit above the horizon, and would you believe it, started moving upwards! But not in the same line where it came down from. It didnt have any blinking lights and its speed was pretty constant. I was absolutely convinced it was some sort of UFO. Especially more credible because we were in the middle of nowhere, and the martians are smart in that they pick country folk with more impressionable minds. So... any explanations? ;)