Hisashi UMEKUBO

@umekubo

Hello! I'm Hisashi UMEKUBO.I prefer Ume-san.I'm a Professional Radio Operator&Mission Controller.1st-class Radio Operator for General Services,1st-class Ham ope

The sun is not so quiet after all. On Aug. 31 at 2055 UT, NASA's STEREO-A spacecraft observed a strong solar flare on the far side of the sun.

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1573 days ago

The sun is not so quiet after all. On Aug. 31 at 2055 UT, NASA's STEREO-A spacecraft observed a strong solar flare on the far side of the sun.

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