on Friday 8/12 913pm my husband and I were outside in our backyard and we noticed a bright light which was a round sphere that descend in the SE sky , and moved side to side on descend, but then blinked out of before it fell below skyline. It was not a plane, or helicopter. We both sit outside frequently in the summer, and see planes flying over to PDX. This object was brighter than a regular plane, more circular.. It was a round illuminated globe in the sky that blinked out of existence as it descended. Maybe it was some kind of craft that we are not familir with?