I was crossing a bridge at 9 pm. it was brightly lit. i always walk around cities. this is the first time i saw a steady bright light descend very rapidly, as if motorized in its decent. comets usually disintegrate. six other people also saw this. one gentleman said he saw it go from horizon to horizon. he suggested it was a satellite. satellite move slowly in my experience. it seemed man made as the light remained constant as it moved in an arc then beyond a tall building.