This is the first attempt at landing Spirit Airlines #640 at DTW (Detroit Metro Airport) on Runway 21L on 12/15/09. As you can see the visibility is very low, and I’d estimate the ceiling around 6-800AGL with an occasional cloud lower than that. Which is what I think happened here, there was a low-hanging cloud at the critical “go-no-go” point for landing and you can hear the pilot accelerating the engines for the second (and very successful landing attempt-see other video). He announced that it was due to air-traffic separation issues, but I don’t think he wanted to frighten the passengers with the very low ceilings at the time we’re landing. This is the first commercial airlines go-around I’ve ever flown on and I commend the pilot for his decision with such low visibility.