Very fast, bright , non blinking red light, traveling north, no soundI want to share with you and others what I saw this morning in the sky as I was driving to work.I live in Renton, Washington. 10 miles south east of Seattle.At 5:21am this morning while approaching a stop sign a very fast, very bright Red light came into view in my windshield.I was facing north. The light come into view from the top left side of my windshield and left my view in the middle of my windshield when it passed behind a mountain 2 1/2 to 3 miles north of me.The light was visible for under 2 seconds. It came out of the South- south west and traveled to the North- north east.It did not blink, it traveled in a straight line, and I heard no noise from the inside of my car. Windows were rolled up and the radio was on.The light was two to three times as big as a typical light from a plane.No trail of light or bits of light were left behind as meteors often leave.I see dozens of planes in the sky around my house every day and night since I'm only 8 miles from Sea Tac International Airport.This did not look like a plane, nor did it act like a plane. Seconds after the red light left my sight a planes lights came into view from behind the same mountain. The plane was flying toward the west and it seemed much higher in the sky and further away. Its lights were "softer" in color and much smaller.This was different, weird even. I watch the night skies several hours a months. Planets, meteors, comets, satellites, space stations, planes. I've seen them all and this red light was not like those.((NUFORC Note: We spoke with the witness and found him to be exceptionally objective in his description of the object and sighting. We suspect he is a very good source. PD))