Under Obama, U.S. life expectancy drops; first time since Clinton presidency
‘Skin’ gun uses stem cells to heal burn wounds
Flickering lights might help ‘fix’ Alzheimers
Mummy’s DNA may reveal origins of smallpox
Despite dire predictions, 2016 another down year for hurricanes, tornadoes
Earth’s days getting longer, slower
BARNA: New research on the state of discipleship
U.S. support for electoral college rises
Scientists say discovery shows life existed before oxygen
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