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by Mary T.
1 week ago (7 replies) |
Last reply by Mitchell : "Exoplanets...," is done and was enjoyed.  Tonight I am starting "Ripples in Spacetime, Einstein, Gravitational waves, anf the Future of Astronomy," by Govert Schilling, an astronomy journalist and writer based in the... more»
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2 years ago (101 replies) |
Last reply by Miranda : Welcome Paul, happy to have you join us here. ... more»
 

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