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by Mary T.
3 hrs ago (27 replies) |
Last reply by Mitchell : Well, I just finished Levin's book.  The first observation of a gravitational wave was on 9/14/15.  There has been a third one, early this past January, the origin being 3 billion light years away! WAY, FAR, OUT!!... more»
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1 year ago (101 replies) |
Last reply by Miranda : Welcome Paul, happy to have you join us here. ... more»
 

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