Summary: In this episode of Looking Up , reminiscences of visits to the Smithsonian National Air and Space Museum and hosts Dean Regas and Anna Hehman welcome the museum's new director, and former chief scientist at NASA, Ellen Stofan .
Summary: In this episode of Looking Up , reminiscences of visits to the Smithsonian National Air and Space Museum and hosts Dean Regas and Anna Hehman welcome the museum's new director, and former chief scientist at NASA, Ellen Stofan .