Bill Nelson @SenBillNelson
Jim’s contributions to NASA — and humanity — helped us gain a better understanding of our solar system and our place in it. I wish him the best of luck in his future endeavors. — PolitiTweet.org
NASA @NASA
💫 “In many ways, NASA is not a job. It’s a way of life.” After more than 40 years of service, our Chief Scientist… https://t.co/wAIGsKQ60S
