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Learn more about the new mission to Mars! The Mars Phoenix Lander touched down on the Red Planet on Sunday, May 25, 2008, and began collecting data. Phoenix is designed to study the history of water and search for complex organic molecules in the Martian arctic's ice-rich soil. Join Exploratorium Senior Scientist Paul Doherty as he walks us through the mission and shows us the first pictures that the Phoenix Lander sends back! In our second Webcast with biologist Steve Hastings, we'll learn about his collaborative research experiment in Barrow. As the climate changes in the Arctic, the amount of water on the tundra is affected (more rainfall, shorter freeze periods, changing sea levels,etc). How will these changes effect the tundra's release of greenhouse gases? Will less permafrost mean more or less CO2 in the atmosphere? Will warmer temperatures cause more evaporation? Will that be good or bad for the environment? The Census of Marine Life is a growing global network of researchers in more than 70 nations engaged in a ten year (2000-2010) mission to assess and explain the diversity, distribution, and abundance of marine life in the oceans. Rolf Gradinger is an expert in Sea Ice Communities, studying the tiny animals that actually live inside the ice and those that live on the bottom of the ice sheets. We'll chat with Rolf about his current work, drilling ice cores just off Barrow, and looking for some of the world's most unique fauna. Meet Barrow scientist and Ice Stories blogger Steve Hastings, who is investigating how the tundra responds to climate change. What exactly is the tundra? How can vegetation, no more than 3 inches tall, play such an important role in the world's climate? Why does the tundra release so much CO2?
The Exploratorium's remote crew has landed in Barrow, AK, to showcase the vast array of science being conducted at this northernmost tip of the continent. Join us for this introduction to Barrow: where is it? why are so many scientists here? why are May and June such important times? How do cancer cells misbehave? Watch and listen as cancer researcher Dr. Thea Tlsty explains how genetic blips turn cancer cells into the rogues they are. From fertilization to pregnancy tests, watch and listen as Xenopus researcher Dr. Thierry Brassac shows how these creatures, with their enormous eggs cells and their acts of metamorphosis, have been helping scientists for centuries. The water-dwelling planaria can lose its head and regrow a new one. Watch and listen as planaria researcher Alejandro Sanchez Alvarado explains how a little flatworm's might teach us about our own regenerative potential. At the National Ice Core Lab in Denver, Colorado, scientists study ice cores in a Class 100 clean room lab kept at minus 7 degrees F. The Jakobshavn Isbræ is among the fastest-moving glaciers in the world. The Jakobshavn is an outlet glacier, one of the few places where the giant Greenland ice sheet can shed ice in the form of gigantic icebergs. This timelapse video (100x real speed) from glaciologist Mark Fahnestock shows one of these massive calving events. Notice the dark blue ice that surfaces when the iceberg flips over in the ice-choked Ilulissat icefjord. Time interval on this timelapse is 10 seconds per frame.