７８ Future of space exploration【Space Travel】Dialogue with the Universe

７８　Future of space exploration【Space Travel】Dialogue with the Universe ・September 2011, NASA announced a new rocket development program as a replacement for retiring the space shuttle. ・Development costs of the large projects is $ 10 billion. • The new rocket will be completed in 2017, conduct a manned exploration of asteroid in 2025, and in the 2030s is a goal of carry the human race to Mars. Source: National Geographic News http://www.nationalgeographic.co.jp/news/news_article.php?file_id=2011091506 ・I think that challenges in rocket development would be to build a system that can be recovered some development costs by space factory or resource exploration, rather than manned and unmanned. ・There is a plan to mine mineral resources in the universe by 2020. Reference: Reuters http://headlines.yahoo.co.jp/hl?a=20131124-00000010-reut-n_ame