Астрономия, Другие научные Space Chronicles: Facing the Ultimate Frontier Автор: Тайсон Нил Деграсс , Lang Avis Год: 2012 полная версия America’s space program is at a turning point. After decades of global primacy, NASA has ended the space-shuttle program, cutting off its access to space. No astronauts will be launched in an American craft, from American soil, until the 2020s,... Admin 27 Апр 17