In Honor of Yuri Gagarin, the First Human in Space
On April 12, 1961, Yuri Alekseyevich Gagarin stepped into his Vostok 1 spacecraft, started the pre-flight checks, and waited for countdown. Hours later, he muttered one of the most beautiful, yet obvious phrases in history: The Earth is blue. How wonderful. It is amazing. And amazing it was. It was an obvious thing to say,…