Expedition 5 begins on April 4, 2009!
From April 4–May 11, 2009, the Polar Discovery team will be aboard the icebreaker Healy in the Bering Sea. A team of researchers, led by Dr. Carin Ashjian, will examine fish, seabirds, marine mammals and even humans to learn more about how the changing climate may affect this enormously productive and vital ecosystem.
Check back soon for more information about our next exiting expedition. In the meantime, explore our site: Follow daily dispatches from our past expeditions to learn about the day-to-day challenges of studying the world's coldest places or explore the poles on your own.
Finding grains on a giant ice sheet:
How do you find tiny particles poured in a hole in Greenland? Learn about our team's attempt »
Beneath Greenland's Glaciers:A look under the ice shows how meltwater forms and flows, and may possibly raise global sea levels. Watch the animation »
Videos and Interviews: Visit our multimedia section to watch interviews of the scientists and videos on our expeditions so far. Watch the videos »
Compare the Poles: Even though they are both at the "ends of the earth," the Arctic and Antarctic differ in many ways. Learn more about the differences »
Join us live! 8 museums across the country have Live Talks with researchers during our expeditions working thousands of miles away. Check the schedule » 
Want Polar wallpaper? Click here to take a quick survey! As a thank you, you will have the option of downloading photos for your desktop.
