北京理工大学英语四六级考试报名系统
欢迎使用北京理工大学 全国大学英语四六级考试报名系统http://cet.info.bit.edu.cn/ 本系统身份验证使用学校单点登录系统。 报名前请核对本人信息。 在 PC 上请使用 Chrome / Firefox / Safari / 搜狗浏览器（切换为高速模式） / 360浏览器（切换为极速模式） 访问 本系统支持手机、平板电脑等移动设备直接访问
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Astronomy For Kids
Powerful and fun resource for kids, exploring astronomy and other space related topics. Play games, learn through interactive applications, and much more.www.kidsastronomy.com
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SPACE TODAY ONLINE
STO covers Space from Earth to the Edge of the Universe spacetoday.org SPACE TODAY ONLINE - Space Today Online covering Space from Earth to the Edge of the Universe
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HobbySpace
Hobby Space是一个让每个人都可以以某种方式参与太空探索和开发的网站。网站鼓励空间爱好者一起参与观察和拍摄轨道飞行器，高空火箭飞行，以及业余和学生纳米卫星项目等。www.hobbyspace.com
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Space News From SpaceDaily.Com
Space News from SpaceDaily.Com brings the space industry professional daily news from the frontier, with contract, bid, launch and on-orbit satellite news as it happens.www.spacedaily.com/
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the American Center for Physics
the American Center for Physics www.acp.org About the American Center for Physics The American Center for Physics brings three Societies together in one building: the American Institute of Physics (AIP) the American Physical Society (APS) the American Association of Physics Teachers (AAPT) The wooded 24-acre site off Kenilworth Avenue in College Park, Maryland, was purchased in the summer of 1992, with occupancy of the building starting in the fall of 1993. The site is ideally situated in close proximity to both Washington DC and the University of Maryland, one of the nation\'s leading research universities and home to strong physics and engineering departments, with easy access to public transportation. Designed by Skidmore, Owings & Merrill, the ACP building was envisioned to be a true center and showcase for physics. Special care was taken with the design of the building and the quality of materials used. To foster a sense of community, the entire ground floor is dedicated to common usage with shared meeting spaces, a cafeteria, and a central rotunda featuring vitrines for art exhibitions.
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Guidechem Chemical Network
Guidechem chemical B2B network provides information on china and global chemical market quotation and relative chemical Information.Guidechem Chemical Network providing the most complete information of the chemical industry.www.guidechem.com
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