Driving down Broken Land Parkway heading south, my fiancée, his cousin who was visiting from out of town and I noticed a formation of about 8-10 orangish-red triangular shaped crafts hovering in the air. They looked as though they were floating in the sky then began to move across the sky. As we turned the corner it seems they just disappeared through the trees although that was strange as it is a very clear night outside. We are near BWI airport but there isn't any way these were airplanes. There were planes departing and arriving and these were not airplanes.