Horizontal rectangle looked like 2 stacked red horizontal lines in sky didn’t move then just vanished

Was looking out window of my moms hospice ( she is palliative with cancer) I had to pick my sister up at airport at midnight was just looking out window like I do most nights just thinking about life and noticed a red rectangle that was horizontal not vertical that just hung out in north sky - there are no red lights nor any traffic lights for 2 blocks in my moms room that would reflect and there was no rain or clouds was a clear night other stars in the sky - it just hovered didn’t move then just suddenly vanished
Picture an Oreo cookie and Looking at it sideways there were 2 stacks of rectangle red lights on top of each other with a space ( the Oreo icing ) inbetween