@mo0210 @taBI7P00JisErA5 日本の天文の発展は軍事研究の制限により阻害されてきたようですね。
Due to the severe regulations of military activities, infrared technology in Japan had been poorly advanced, and also, we could not import highly sensitive infrared detectors from the U.S.A.
https://t.co/9YGJrEYghE