My mother and I just got back from shopping from Santa fe NM and had arrived at her home in Espanola NM. She went ahead of me and I lingered behind to admire the sunset. I looked up and saw a weird round gray object from a distance, moving downward to the left reappearing and disappearing.I thought maybe it could be a plane, but planes don't reappear and disappear...and are not round that I have seen. Quickly I grabbed my phone and snapped some pictures hoping what I saw showed up.Through vision it disappeared. Sadly I wished I recorded it..but was afraid it would vanish before I got to recording it.I saw this object with such excitement and wonder...what could make it propulse like that with no contrail?