Last year I noted some ongoing questions as to how long a nonrelativistic neutron will last by itself. Besides "curiosity", our standard model depends on some Cabibbo-Kobayashi-Maskawa matrix
being unitary
. That, in turn, might be more true for some neutron lifetimes than for others.
Back then, Durham suggested measuring the outflow from the inner planets. Now, Durham thinks they can get some results faster: with the Lunar Prospector.
Meanwhile we also have these neutrons suspended over frickin' magnets: 877.75 seconds. Possible due to the neutrons' internal magnetism I take it.
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