UFO sighted in Antarctica in 1964

Summary

In May 1964, personnel at an Antarctic station observed an object believed to be an Apollo spacecraft. It was unknown whether the satellite was in a polar orbit, but if so, the spacecraft would have been clearly visible. The object was not considered a meteor, suggesting it was not a common natural phenomenon. The observation was brief and no photos were taken. NASA and the Navy were also notified, but there was not enough data for a clear evaluation. The possibility of it being the ECHO II satellite was mentioned, though this was not confirmed.