Researchers are drying off after a successful tropical cyclone research mission based in Costa Rica, where scientists tracked two major Atlantic Ocean hurricanes at the height of their destructive power, witnessed the entire lifecycle of tropical storms in the Atlantic and documented a number of unexpected surprises about the short, violent lives of these seagoing tempests.

NASA and the National Oceanic and Atmospheric Administration (NOAA) outlined new research that has helped improve the accuracy of medium-range weather forecasts in the Northern Hemisphere.

A new NASA-funded study finds that predicted increases in precipitation due to warmer air temperatures from greenhouse gas emissions may actually increase sea ice volume in the Antarctic's Southern Ocean.

New research funded by NASA and the National Science Foundation shows that major volcanic eruptions far north of the equator affect the world's climate much differently than volcanoes in the tropics.