National Aeronautics and Space Administration Browse All Authors Famous Quotes by National Aeronautics and Space Administration The situation will not affect the mission's launch readiness date of July 17, 2020. National Aeronautics and Space Administration top-news In summary, the proposed study is a unique opportunity to examine the influence of space flight on the mutation rate and diversity of human persistent viruses and to assess the potential risk of virus mutations accumulating during long-duration missions. National Aeronautics and Space Administration latest-headlines
