Argentine Air Force officer Hernan Gallardo carries a meteorological balloon to be launched from the Argentine Base Marambio in Antarctica March 8, 2008. Argentina is one of the countries that has the biggest number of bases in Antarctica, where a wide range of activities related to research in various fields, such as geology, climatology, glaciology, oceanography and biology, are conducted. REUTERS/Enrique Marcarian (ANTARCTICA)
REUTERS/ENRIQUE MARCARIAN