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
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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。
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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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Australian Institute of Physics
Australian Institute of Physics | Promoting the role of Physics in research, education, industry and the community
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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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