Activity

Not sure of the octane content but worth a look….
https://www.bangkokpost.com/world/1936520/balloon-like-ufo-in-japanese-sky-sets-twitter-afire#cxrecs_s

“We have absolutely no idea what it is,” said a weather bureau spokesman, declining to give his name. “It may be some kind of weather monitoring equipment, but it definitely isn’t ours.”