  The precise value of the neutron lifetime is of fundamental importance to
particle physics and cosmology. The neutron lifetime recently obtained, 878.5
+/- 0.7stat +/- 0.3sys s, is the most accurate one to date. The new result for
the neutron lifetime differs from the world average value by 6.5 standard
deviations. The impact of the new result on testing of Standard Model and on
data analysis for the primordial nucleosynthesis model is scrutinized.
