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NASA Pays Tribute to Four Great Minds in Science

NASA’s Goddard Space Flight Center lost four of its greatest minds in the past several months. Phil Sabelhaus, Marty Davis, Neil Gehrels and Piers Sellers made indelible contributions to space exploration during their decades of service to NASA. This video honors the legacies of these individuals and their lasting impact on the spaceflight community.

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Last Updated
May 22, 2023
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NASA Science Editorial Team

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A spiral galaxy viewed tilted at a diagonal angle and toward the viewer. The core and the disk of the galaxy are different colors but are otherwise difficult to tell apart. The disc has wispy, ragged edges and many arcs of glowing, star-forming patches. A few distant galaxies are visible in the background around the spiral galaxy, as are several foreground stars.
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The image is divided horizontally by an undulating line between a cloudscape forming a nebula along the bottom portion and a comparatively clear upper portion. Speckled across both portions is a starfield, showing innumerable stars of many sizes. The smallest of these are small, distant, and faint points of light. The largest of these appear larger, closer, brighter, and more fully resolved with 8-point diffraction spikes. The upper portion of the image is blueish, and has wispy translucent cloud-like streaks rising from the nebula below. The orangish cloudy formation in the bottom half varies in density and ranges from translucent to opaque. The stars vary in color, the majority of which have a blue or orange hue. The cloud-like structure of the nebula contains ridges, peaks, and valleys – an appearance very similar to a mountain range. Three long diffraction spikes from the top right edge of the image suggest the presence of a large star just out of view.

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