Today we have released an news article from 1968,  this article tells that the Russian chief scientist of the institute for space and research was warning the Apollo 8 crew before their flight. That the sun was in a high activity phase and that the danger of high doses of radiation could be dangerous to the astronauts. The source article is in Dutch and does refuse to the Russian newspaper Pravda in the USSR.  English translate under the article.   http://awe130.nl/index.php/documents-articles/28-russian-george-petrow-in-dutch