Pioneer rocket scientist Robert H. Goddard once said, 'It is difficult to say what is impossible, for the dream of yesterday is the hope of today and the reality of tomorrow.' Fifty years after its inception, NASA's Goddard Space Flight Center continues to live by these words, advancing science and engineering to new limits once thought impossible as it explores of the Earth, the sun, the solar system, and the universe. Note: This short promo, featuring portraits of Goddard's scientists, engineers, and educators, celebrates 50 years of the center's achievements. Animator: Chris Meaney (HTSI), Walt Feimer (HTSI), Ryan Zuber (UMBC), Chris Smith (HTSI), Susan Twardy (HTSI). Editor: Chris Smith (HTSI). Producer: Chris Smith (HTSI). Scientist: James Garvin (NASA/GSFC), David Adamec (NASA/GSFC), John Mather (NASA/GSFC). Videographer: Chris Smith (HTSI).