At about 2:30 in the morning, while closing the doors on a semi trailer, I looked straight up to see a silent craft moving from SE to NW toward Millington Tn. There were 7 white lights at an angle to 5 lights at the front of the craft,no colored or flashing lights ...there was no wind, no clouds and no other air traffic, even though Memphis Intl Airport is a very busy hub. The sighting lasted 4-5 seconds and the craft disappeared into thin air.