German, American and Russian scientists left Leningrad, Russia, aboard the German Graf Zeppelin on a six-day scientific expedition to the Arctic.
joe.worley@tulsaworld.com(joewo-126), Tulsa World
Sat, 07/25/2015 - 3:00pm
German, American and Russian scientists left Leningrad, Russia, aboard the German Graf Zeppelin on a six-day scientific expedition to the Arctic.