America's first manned space flight program. Seven astronauts were selected as the first group of astronauts, and on May 5, 1961, AB Shepard made America's first successful suborbital flight (15 minutes). On February 20, 1962, JH Glenn became the first man to enter satellite orbit in the Mercury satellite Friendship 7, orbiting the Earth three times, followed by MS Carpenter and WM Schirra, who also orbited the Earth in Mercury satellites. On May 15, 1963, LG Cooper's Faith 7 orbited the Earth 22 times and returned, completing the program. After this, the two-seater Gemini program began. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
アメリカ最初の有人宇宙飛行計画。第1期宇宙飛行士として7人が選抜され,1961年5月5日 A.B.シェパードがアメリカ初の弾道飛行 (15分間) に成功。 62年2月 20日には J.H.グレンがマーキュリー衛星船フレンドシップ7で,初めて衛星軌道に乗り地球を3周し,続いて M.S.カーペンターや W.M.シラーがマーキュリー衛星船で地球を周回。 63年5月 15日には L.G.クーパーのフェイス7が,地球を 22周して帰還,計画を終了。このあと2人乗りのジェミニ計画が始った。
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