Astronomy Magazine
Astronomy.com is for anyone who wants to learn more about astronomy events, cosmology, planets, galaxies, asteroids, astrophotography, the Big Bang, black holes, comets, constellations, eclipses, exoplanets, nebulae, meteors, quasars, observing, telescopes, NASA, Hubble, space missions, stargazing, and more
点击进入 - 2017-09-12 - 收藏
Sky Telescope
Sky & Tel covers the latest night-sky events, astronomy news, astrophotography and observing tips. Also browse our video & podcast guides to tonight's sky.www.skyandtelescope.co 天空和望远镜（Sky & Telescope）是一份涵盖业余天文学各个方面的美国月刊。网站提供最新夜空事件，天文新闻，天文摄影和观察技巧。
点击进入 - 2017-09-12 - 收藏
The chinamachinenet site
The chinamachinenet site is the largest machinery site of china,Business to business marketplace, trading board, and directory for Chinese Machine and Machine manufacturers/sellers and worldwide buyers.www.chinamachinenet.com
点击进入 - 2017-09-11 - 收藏
Scientific American
Science News, Articles, and Information - Scientific American www.scientificamerican.com Latest news and features on science issues that matter including earth, environment, and space. Get your science news from the most trusted source!
点击进入 - 2017-09-11 - 收藏
China News Service Website
Ecns.cn is the official English-language website of China News Service (CNS), providing latest news, comments, analysis, photos and videos on China society, business, culture, sci-tech, sports, entertainment and travel.www.ecns.cn
点击进入 - 2017-09-11 - 收藏
蓝途旅游网
蓝途旅游网www.landtu.com蓝途旅游网（www.landtu.com）隶属深圳市蓝途国际旅行社有限公司于2008年7月1日正式上线运营，深圳市蓝途国际旅行社有限公司注册于2010年3月9日，是 在深圳市文体旅游局注册的正规旅行社，旅行社业务经营许可证编号为L-GD-CJ00276。 蓝途旅游网成立近10年间，已服务了近200万客户，满意度99%，月销售额早已过千万，很多客户都是蓝途忠实长期的伙伴也是朋友，就是这份支持与信任，鼓舞着每 个蓝途人都抱有一份冲动，也是信仰，让“每一次的服务，都是了不起的期待”。蓝途人会用心的把自己专业和经验知识服务于客户，让每一份旅途安排的让客户能够安心、省心、放心、舒心、开心的五星旅游，这也蓝途人一致的追求。
点击进入 - 2017-02-28 - 收藏