outside raking leaves when i happened to glance up. as i did i notice a big star/planet like white light above and to the west of me. thought it was a planet at first but it was moving to the east.i watched the object move right over head and no sound. called my 13 yo son to see with me. we watched it for 4 or so mins while it continued to the east out of site. also saw 2 planes during this time in different directions with obvious blinking marker lights. object was at a similar altitude to the other planes but twice the size.30 mins later my son heard and saw what he thought was a military aircraft at a very high rate of speed headed in the objects ladt know direction.