Leonov's grove

In Washington, D.C., on business earlier in March, I visited the grove of trees at the west end of the Air and Space Museum, planted by the crews of the 1975 Apollo-Soyuz mission. The Soyuz commander was the great Aleksei Leonov, whose pioneering -- and near-fatal -- 1965 spacewalk inspired a scene in my story "The Chief Designer."The Apollo-Soyuz crews also planted a grove in Moscow, and I hope to visit it one day.