@senbillnelson 's outsized influence on #NASA over four decades is undisputed, but some of us in the #SpaceCommunity are concerned this may not be a feature . Senator #Nelson’s imprint on the #SpaceProgram has led to grand pronouncements based on #unrealistic industry estimates, multibillion-dollar #cost overruns, years of schedule #delays and unmet expectations https://www.scientificamerican.com/article/bill-nelson-isnt-the-best-choice-for-nasa-administrator/