Sphere-shaped craft seen in sky north of Keller, WA.

Two of us were traveling down the east side of Cache Creek Rd at 7:30 pm on 12/23/2020.  It was dark but the sky was clear and there was a half moon.  As the car rounded a curve, straight ahead of us we saw a sphere-shaped object flying south.  The craft appeared fairly large (judging by the distance) but because of the mountain and trees it was only visible for a few seconds.  It was a very light luminous blue and looked to be solid in color, i.e. no visible lights, etc.
 This is the second sphere-shaped craft I have seen on Cache Creek.  The first was a few months ago on Owhi flats.  This craft was red in color and hovering just above the mountain range to the south.  I glanced over at the person driving to tell them to look at the light and when I looked back there was nothing.  It had vanished.