What is it?
a) Cirrus cloud
b) Contrail from a jet engine
c) Streak of light across the camera field of view
Meet the scientists and crew, and learn more about the tools they use
Every day, we'll add photos and journals about our experiences at the North Pole
During the expedition, email your questions to the researchers
Learn more with hot topics, videos, animations, and interviews.
Postcards from the Ice, puzzles, quizzes and more!
