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1. ASP: What Have We Learned About Halley's Comet?
The Search for Planets Around Other Stars As we live out our lives securely attached to the Earth, breathing its air, and using its water, it becomes all too easy to take planets for granted. ... Yet the surprising fact is, we do not know for certain whether there are planets around other stars. ... A few years ago there was a flurry of excitement as some astronomers found wobbles in the motions of several nearby stars, suggesting the presence of planets. ... a stillborn star, if you will ? ...
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Ссылки http://www.astrosociety.org/edu/publications/tnl/06/halley2.html -- 14.1 Кб -- 02.10.2012
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