'Space can unite a troubled country in troubled times': NASA chief calls for unity 55 years after Apollo 11 moon landing
!['Space can unite a troubled country in troubled times': NASA chief calls for unity 55 years after Apollo 11 moon landing](https://cdn.mos.cms.futurecdn.net/4hwU37oCiwcP5MfVNjwVPQ.jpg)
NASA administrator Bill Nelson is calling for unity among both major U.S. political parties amid the 55th anniversary of the first human moon landing on Saturday (July 20).