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    Tipping Points, Albedo, And The Local Perspective

    By Walt Meier May 29, 2016 — This morning, we had our second modeling exercise, led by Ian Eisenman of the University of California, San Diego, where we investigated whether sea ice loss is irreversible – i.e., is there a tipping point for sea ice, a point of no return? In the simple models, like the one […]

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    Super Pressure Balloon Circumnavigates Globe After 14 days of Flight

    NASA’s 18.8 million-cubic-foot super pressure balloon hit another milestone at 9:17 a.m. EDT Monday, May 31, crossing the 169.24 east longitude line, officially completing its first circumnavigation of the globe. The balloon, flying the Compton Spectrometer and Imager (COSI) payload, achieved the milestone 14 days, 13 hours and 42 minutes after launching from Wanaka Airport, New …

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    OSIRIS-REx Goes for a Spin

    In the image above, NASA’s OSIRIS-REx spacecraft rotates on a spin table during a weight and center of gravity test May 24 inside the Payload Hazardous Servicing Facility at Kennedy Space Center in Florida. An overhead crane carefully returned the spacecraft to its work stand May 26 (right) to continue prelaunch processing. OSIRIS-REx, stands for …

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    BEAM Leak Checks Before Crew Enters Next Week

    Sun Glint

    BEAM, the Bigelow Expandable Activity Module, was successfully expanded Saturday beginning two years of tests to demonstrate the new expandable technology. BEAM was pressurized and expanded to its full volume, width and length this weekend after 25 pulses of air were introduced into the new module. BEAM leak checks are underway and will continue before …

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    Models, Augers, and BBQ

    By Walt Meier May 28, 2016 – This morning we did our first modeling exercise. We started simply, modeling the ice’s thickness as the balance between ice growth and ice melt. Ice grows during the winter and melts during the summer. But from this simple start, a lot can be gleaned. The growth and melt rates are […]

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    Sea ice morphology and charismatic mega fauna

    By Walt Meier May 27, afternoon – After our morning orientation and introduction sessions, I headed out onto the ice for the first time. We were split into four teams; each team will rotate through a different activity every day with each activity being led by one or two experts that will serve as our guide. I was assigned to the Red Team. […]

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    ISS Daily Summary Report – 05/30/16

    Japanese Experiment Module (JEM) Airlock (JEMAL) NanoRacks CubeSat Deployer #8 (NRCSD#8) Deployment Operations: NRCSD#8 was transferred to the JEM Remote Manipulator System (JEMRMS) and 1 of 8 Silos was successfully deployed this morning via ground commanding. Additional deploys are planned for tonight at 7:45 PM and 11:00 PM CDT. Today is the first of three …

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    NAAMES-II Expedition: May 29, 2016

    Today is the last first day of a station, since we reached station five around midnight last night. I think the entire ship was glad to finally have a day to sleep as we traveled yesterday! It was business as usual for the aerosol people though, since we do not have to deploy most of […]

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    NAAMES-II Expedition: May 28, 2016

    The CPC is counting 100 particles/cm3, which is 10 times lower than you normally breathe in room air. We breathe the fresh Atlantic marine air and marine aerosols. The size of particle is less than 500 nm, which is invisible, you can’t even feel it and you can’t take a photo with your iphone. This […]

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    BEAM Fully Expanded and Pressurized

    BEAM Expanded and Pressurized

    Pressurization of the Bigelow Expandable Activity Module (BEAM) began at 4:34 p.m. EDT, and the eight tanks filled with air completed full pressurization of the module 10 minutes later at 4:44 p.m. BEAM’s pressure will be equalized with that of the International Space Station, where it will remain attached for a two-year test period. The …

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