Moments later, it reemerges, only to submerge again. While underwater, its movement is still visible through a series of flashes, until it suddenly bursts back out of the ocean once more. 

This sequence repeats again, until the sphere finally ascends into the sky and disappears over the horizon. 

This brief compilation suggests that a wide variety of advanced technologies, whether man-made or of extraterrestrial origin, may be operating around our planet, often just beyond our understanding.