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	History of Winter (HOW) Program + View HOW Intro Video + Read the HOW agenda HOW to Study Snowpits + View HOW Snowpit Video + Read Snowpit Protocol HOW to Study Ice Cores + View HOW Ice Thin Sectioning Video + Read Ice Thin Sectioning Protocol History of Winter 2004 + View overview of HOW/Excite 2004 Introduction to the Global Snowflake Network (GSN) + View GSN Intro Video GSN for the International Polar Year + Read IPY Endorsement Letter Collecting Snowflakes for the GSN + View GSN Protocol Video + Read Snowflake Protocol GSN Data Sheets + View Sample Basic Mode Data Sheet + View Sample Detailed Mode Data Sheet + Download Basic Mode Data Sheet + Download Detailed Mode Data Sheet HOW introduces the Thermochron + View the Thermochron Tutorial + Read Thermochron Guide Chronicling a Thermochron Experiment + Read the experiment narrative Thermochrons, Reindeer Herders and Dogsleds + Read More Thermochron Mission + Coming soon - stay tuned... 03.31.07 - HOW Press Release + Read More + Read More 03.31.07 - GSN at NSTA Join us at NSTA for the presentation “Frozen Moments in Time—Join the Global Snowflake Network!” + Coming Soon 02.15.07 - HOW joins Norway for the Opening of the IP-IPY The target window for the next Space Shuttle flight moved to March 2005. + Read More 02.15.07 - GSN featured on “Discoveries and Breakthroughs Inside Science” “When a fresh batch of snow falls, it's not long before the fun starts! Now, add a little more fun by catching snow.” + Read More + Read More 02.26.06 - HOW Scientist Looks at Olympic Ice in a Frozen Light + Read More + Read More EALAT-Reindeer Herders Vulnerability Network Study + Read More Buffalo Museum of Science + Read More Go North! Polar Husky + Read More Finnmark 2007 + Read More NASA Sites...Ciencia@NASAEarth ObservatoryGreatest Images of NASAHuman Spaceflight WebLiftoff to LearningMars ExplorationNASA Education ProgramNASA HistoryNASA Image ExchangeNASA KidsNASA SpacelinkPlanetary PhotojournalScience@NASANASA Technology NASA Enterprises and Centers...Aerospace TechnologyBiological and Physical ResearchEarth ScienceHuman Exploration & Dev. of SpaceSpace ScienceHeadquartersAmes Research CenterDryden Flight Research CenterGlenn Flight Research Center Goddard Space Flight Center Jet Propulsion LaboratoryJohnson Space CenterKennedy Space CenterLangley Research CenterMarshall Space Flight CenterStennis Space Center
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