No, that is False. They normally occur in the layer called the Troposphere. The Troposphere is where all the plains and the jets fly. The Mesosphere is too high,
Answer:
It uses light and oddities like a floating head to show that it is not a living person, the head in question looks close to representations of religious figure Jesus. So, we can deduce that the "Apparition" symbolizes something different than just a head with no body.
Explanation: