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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=57" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=114036&size=small" /></div> <h1 class="ph">人类首次进入太空飞行50 周年 </h1> <p class="xg1"> 时间：2011-4-12 14:23<a class="zz" href="home.php?mod=space&uid=114036">作者：duller</a> 阅读<em id="_viewnum">(1329)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=1903&idtype=aid" title="查看全部评论"><em id="_commentnum">1</em></a></p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=57" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>1961年4月12日莫斯科时间上午9时零7分，加加林乘坐东方一号宇宙飞船从拜克努尔发射场起飞，在远地点为301公里的轨道上绕地球一周，历时1小时48分钟，于上午10时55分安全返回，降落在萨拉托夫州斯梅洛夫卡村地区，完成 ...</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content">1961年4月12日莫斯科时间上午9时零7分，加加林乘坐东方一号宇宙飞船从拜克努尔发射场起飞，在远地点为301公里的轨道上绕地球一周，历时1小时48分钟，于上午10时55分安全返回，降落在萨拉托夫州斯梅洛夫卡村地区，完成了世界上首次载人宇宙飞行，实现了人类进入太空的愿望。<BR><BR>1961年，加加林完成了人类第一次进入太空飞行的壮举，加加林也由此成为世界上进入太空第一人，他也是第一位有幸从太空俯瞰地球全貌的人。加加林这次飞行被誉为充满勇气和远见的一次壮举，从此开启了载人航天的新纪元。<BR><BR>到了1969年7月21日，格林尼治时间2时56分，美国宇航员阿姆斯特朗将左脚踏到月球上，成为第一个踏上月球的人。1981年4月12日，加加林首次太空飞行20周年当天，世界上第一架航天飞机——美国的“哥伦比亚”号成功发射升空，将航天飞机的设想首次变成了现实。<BR><BR>此后三十多年过程中，美国陆续建造和发射“挑战者”号、“阿特兰蒂斯”号、“发现”号和“奋进”号航天飞机，这些航天飞机完成了很多重要的航天使命。<BR><BR>除了航天飞机，如今每一天国际空间站都在沿着当年加加林的宇宙飞船所经过的卫星低轨道航行。各种卫星则为人类提供更廉价的互联网和电话服务，为飞机和汽车导航，为科学家提供各种气象系统和地球生态系统的数据。</td></tr></table> <!--[diy=diycontentbottom]--><div id="diycontentbottom" class="area"></div><!--[/diy]--> <script src="data/cache/home.js?eOg" type="text/javascript"></script> <div id="click_div"><table cellpadding="0" cellspacing="0" class="atd"> <tr><td> <a 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