Day of Remembrance

Taps is played by the Honor Guard after NASA Administrator Charles Bolden, left, and his wife Alexis laid a wreath at the Tomb of the Unknowns as part of NASA's Day of Remembrance, Friday, Jan. 31, 2014, at Arlington National Cemetery. The wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Bill Ingalls)