Witnessed an oddly shaped almost sideways facing Chevron craft slowly hovering northbound along the I5 corridor from kirkland. This craft had no sound and no rotors that could be seen, but could hover in place and pivot around its central axis. A plane flew overhead about a mile from the craft. The craft hovered and rotated to face the plane which was flying away from it. It then rotated back to the north and flew off. I have pictures of said craft