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点击进入 - 2017-10-14 - 收藏
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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Canadian Association of Physicists
Canadian Association of Physicists www.cap.ca Canadian Association of Physicists - Supporting Physics Research and Education in Canadian since 1965
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APS Physics
American Physical Society (APS) is a non-profit membership organization working to advance and diffuse the knowledge of physics through its outstanding research journals, scientific meetings, and education, outreach, advocacy and international activities.www.aps.org
点击进入 - 2017-09-12 - 收藏
Washington Times
The Washington Times delivers breaking news and commentary on the issues that affect the future of our nation.www.washingtontimes.com Washington Times - Politics, Breaking News, US and World News
点击进入 - 2017-09-11 - 收藏
