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ARCTAS researchers are keeping the rest of us up-to-date on their progress in a blog hosted by Discovery.com.
Scientists blog about their extended voyage off the Antarctic coast as part of a mission to study carbon dioxide levels in the ocean and atmosphere.
NASA's Mars Reconnaissance Orbiter has revealed vast Martian glaciers of water ice under protective blankets of rocky debris at much lower latitudes than any ice previously identified on the Red Planet.
NASA's Phoenix Mars Lander has detected snow falling from Martian clouds. Spacecraft soil experiments also have provided evidence of past interaction between minerals and liquid water, processes that occur on Earth.
New observations from NASA's Mars Reconnaissance Orbiter indicate that the crust and upper mantle of Mars are stiffer and colder than previously thought.
NASA's Phoenix Mars Lander is preparing to end its long journey and begin a three-month mission to taste and sniff fistfuls of Martian soil and buried ice.
View pictures and video captured by NASA's Phoenix Mars Lander, which touched down on the Red Planet on May 25, 2008.