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Cheap Astronomy - Dear CA #142: Knowns & Unknowns
Hosted by Steve Nerlich.
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Dear Cheap Astronomy – Do gravitons exist?
Once again we're dealing with something hypothetical here – so much like virtual particle pairs that pop out of nowhere and can evaporate black holes, it's entirely possible that gravitons exist, but at this time it's probably appropriate to entertain the notion that they might not exist either. Ten years ago we would have said the same thing about the Higgs boson, but that was positively identified by the Large Hadron Collider in 2012 and hence moved from being a hypothetical to a real particle at that time.
Dear…
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