radiation zone of the sun - An Overview
The obvious Option was to limit orbits to beneath the inner belt, which commences at about 600 km above Earth’s surface. Such as, the utmost altitude of the very first human flight by Yuri Gagarin were 327 km."Destruction by the Heat Rays/Shadow Imprinted on An electrical Pole". . Archived from the first on 12 September 2019. Retrieved 30 March 2