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The R/V Thomas G. Thompson, the 274-foot-long research vessel operated by the ¯r¶¹ÔÚÏß, has spent 25 years carrying researchers, students and teachers out to sea. The ship has collected material from the bottom of the deepest ocean trenches and braved storms near Antarctica. This week, the ship will begin a yearlong stay in protected waters and dry dock near Seattle’s Harbor Island for a complete overhaul of its propulsion system, navigation and many core engineering systems. The $34.5…

¯r¶¹ÔÚÏß polar scientists are on Alaska’s North Slope this week for the 2016 Barrow Sea Ice Camp. Supported by the National Science Foundation, the event brings together U.S.-based sea ice observers, satellite experts and modelers at various career stages to collect data and discuss issues related to measuring and modeling sea ice. The goal is to integrate the research community in order to better observe and understand the changes in Arctic sea ice. Check out the group’s blog,…

¯r¶¹ÔÚÏß students, faculty and staff are part of the fifth West Coast Ocean Acidification Cruise that will investigate changes to ocean chemistry from Baja to British Columbia. The ship left Thursday from San Diego to begin sampling on Mexico’s northern coast. It will stop May 21 at San Francisco’s Exploratorium Pier, then travel as far as northern Vancouver Island before ending in Seattle in early June. Follow along with the blog, which is being coordinated from shore by…

The idea that the young Earth had a thicker atmosphere turns out to be wrong. New research from the ¯r¶¹ÔÚÏß uses bubbles trapped in 2.7 billion-year-old rocks to show that air at that time exerted at most half the pressure of today’s atmosphere. The results, published online May 9 in Nature Geoscience, reverse the commonly accepted idea that the early Earth had a thicker atmosphere to compensate for weaker sunlight. The finding also has implications for which gases…

Investigate a real ice core from Greenland, survey microbes from the coldest parts of the world, explore an Arctic ice camp and meet with polar scientists – many of whom are from the ¯r¶¹ÔÚÏß. It’s all part of Polar Science Weekend, returning to Seattle’s Pacific Science Center March 4-6. The three-day event features interactive exhibits and opportunities to talk with top polar scientists who work in some of the most remote and challenging places on Earth. New this…