Latest NASA Astronaut Group 17 Stories
Shannon Walker is an American scientist and a NASA astronaut. She was born on June 4, 1965 in Houston, Texas. She graduated from Westbury High School in Houston in 1983, and then received a Bachelor of Arts degree in Physics from Rice University in 1987. Walker began her career in 1987 with the Rockwell Space Operations Company at the Johnson Space Center as a robotics flight controller for the Space Shuttle Program. She served as a flight controller in the Mission Control Center for...
- The act of sweetening by admixture of some saccharine substance.
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