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A comment on Gravitational waves detected by LIGO. Parent comment

Re:Gravitational waves detected by LIGO by joolze on Thursday February 11, 2016 @06:59AM (#11079599)
you can determine direction with multiple experiments, or with 3d mirror arrangements, see LISA

and yes, they can only exist if they travel at the speed of light. it's a major test of the limiting speed of light.

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Re:Gravitational waves detected by LIGO by MereInterest on Thursday February 11, 2016 @07:27AM (#11079698)
Multiple experiments wouldn't help very much, because it will be a new source each time. When two black holes merge, it is only during the final few seconds that very large gravitational waves are emitted.
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Re:Gravitational waves detected by LIGO by evanb on Thursday February 11, 2016 @09:49AM (#11080396)
I believe gp meant multiple laser interferometers, not multiple gravitational-wave-emitting events.
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