UFO spotted over Antarctica? – Emirates 24/7

While a definitive explanation has not been found, several elements suggest a prosaic answer.

The supposed UFO appears more or less directly over the research station; it also appears to be nearly perfectly round and about the right size for a balloon. Neumayer-Station III, a scientific research station, carries out tests and experiments in a wide variety of areas, including geophysics, meteorology and atmospheric chemistry.

Weather balloons are used extensively to study and sample the atmosphere at different times and altitudes above Antarctica.

via UFO spotted over Antarctica? – Emirates 24/7.