https://headlines.yahoo.co.jp/hl?a=2...-soci.view-000
Seen from the ground (over 50 reports) high over Iwate yesterday and Fukushima and Sendai for several hours this morning. Sometimes clouds came in between. Also spotted 'seemingly above' by a passenger aircraft, according to the article. The Prefectural Police estimate more than 2~3,000 meters high. Not recognized by the prefectural or city offices in the area or By the Self Defence Forces, and different from any balloons that the meteorological agency sends up. Unusually slow moving, despite fairly strong NW winds.
This article also speculates as to possibilities, but draws no conclusions.
https://news.yahoo.co.jp/articles/36...8aacda17729597
