July 2010


Map of Antarctica's Landmass
Jul 22, 2010Most Accurate Map of Antarctica’s Landmass Made From Landsat Data

Antarctica may not be the world's largest landmass -- it's the fifth-largest continent -- but resting on top of that land is the world's largest ice sheet. That ice holds more than 60 percent of Earth's fresh water and carries the potential to [...]

Giuliano Guimaraes examines a fallen tree
Jul 13, 2010Study Using Landsat Finds Amazon Storm Killed Half a Billion Trees

A single, huge, violent storm that swept across the whole Amazon forest in 2005 killed half a billion trees, according to a new study funded by NASA and Tulane University. While storms have long been recognized as a cause of Amazon tree loss, [...]