metal sphere , Hydrazine propellant tank for spacecraft, 金屬球

Great space ball mystery SOLVED | Mail Online
http://www.dailymail.co.uk/news/article-2078428/Great-space-ball-mystery-SOLVED.html
MAGAZIN INCASA.RO http://www.incasa.ro/index.php?module=allproducts
天降太空球 非洲納米比亞現蹤 http://www.wantgoo.com/37351/523