Thomas Burris boarded his flight, found his seat and opened a book on nuclear receptors, the class of proteins he...
A symphony orchestra is comprised of the strings, the woodwinds, the brass and percussion. Without one, you lose the depth of sound. Without them all, you lose the genius of Beethoven or Mozart.
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Feature image of Perseverence Rover landing on Mars' surface. Artist rendering by NASA/JPL.
Williams, a University of Florida geology professor, recently joined her second Mars mission: After serving on the Curiosity rover team since 2009, she’s now a participating scientist on the Perseverance rover, which touched down on the red planet on Feb. 18.