Invasion(入侵) Earth

This article was taken from : Apple Pie Everyday English.
Invasion Earth(幽浮入侵中)
In 1978，a young pilot named Frederick Valentich.
He was a routine(例行的) flight until something very strange happened.He reported to air traffic control in Melbourne(墨爾本) that a series of small flashing lights traveling at high apeeds were circling his aircraft(飛機).
Moments later, the communication(通訊) cut off ,and they diappear(消失) too.
The thing  remains a mystery to this day.