I live in aurora, co. first noticed in the early afternoon from my house. it was strange but thought it might be bday baloon. saw at it again, about 2 hrs later in franktown, co from my horses pasture so that's when ii started to question it. it hovered, moved pretty slow side to side and after a little while continued to climb up to the point where it looked like a small star( even then i could see side to side movement) and then completely disappeared. video is hard to see clearly because of the zoom and it was on a cellphone. only filled one location but saw it twice today.