Friday, January 31, 2020

A New and Controversial U.S. Nuclear Weapon Goes to Sea

A New and Controversial U.S. Nuclear Weapon Goes to SeaThe missile submarine USS Tennessee is the first to deploy with the W76-2 warhead.




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Old muscle stem cells can act young again but there’s a catch

Scientists at UCLA discovered a surprising reason aging muscles heal more slowly. In older muscle stem cells, a protein called NDRG1 builds ...