Infamous 'neutron lifetime puzzle' may finally have a solution — but it involves invisible atoms

A type of hydrogen that doesn't interact with light could explain how long neutrons live and reveal the identity of the universe's dark matter, according to a new theory.

May 31, 2025 - 11:10
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Infamous 'neutron lifetime puzzle' may finally have a solution — but it involves invisible atoms
A type of hydrogen that doesn't interact with light could explain how long neutrons live and reveal the identity of the universe's dark matter, according to a new theory.