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(NASA/Goddard Space Flight Center) Three NASA aircraft will begin flights to study tropical cyclones on August 15 during the agency's first major US-based hurricane field campaign since 2001. The Genesis and Rapid Intensification Processes mission, or GRIP, will study the creation and rapid intensification of hurricanes.

(NASA/Goddard Space Flight Center) Hurricane Earl is still a powerful category four hurricane on the Saffir-Simpson Scale as it approaches the North Carolina coast today. NASA's Tropical Rainfall Measuring Mission (TRMM) satellite observed the high rates rain was falling within Earl, in some areas more than 2 inches per hour. Today, the Global Hawk unmanned aircraft is also flying into the eye of Hurricane Earl at altitudes of 60,000 feet to gather information about the storm.

Three NASA aircraft will begin flights to study tropical cyclones on Aug. 15 during the agency's first major U.S.-based hurricane field campaign since 2001. The Genesis and Rapid Intensification Processes mission, or GRIP, will study the creation and rapid intensification of hurricanes. Advanced instruments from NASA's Jet Propulsion Laboratory, Pasadena, Calif., will be aboard two of the aircraft.

(NASA/Goddard Space Flight Center) NASA's Tropical Rainfall Measuring Mission, or TRMM satellite looked at the rate rain was falling in Hurricane Earl yesterday, and it was intense.

(NASA/Goddard Space Flight Center) NASA satellites and the International Space Station are keeping eyes on Hurricane Earl as it heads for New England. Watches and Warnings are posted in the US northeast.

(NASA/Goddard Space Flight Center) Hurricane Earl lashed the North Carolina coast last night and this morning, September 3, and is now headed for Cape Cod, Massachusetts. This morning's image from the GOES-13 satellite saw Hurricane Earl's clouds covering most of the northeastern US.

(NASA/Goddard Space Flight Center) NASA's CloudSat satellite captured a profile of Hurricane Karl as it began making landfall in Mexico today. The satellite data revealed very high, icy cloud tops in Karl's powerful thunderstorms, and moderate to heavy rainfall from the storm. Meanwhile, NASA's "GRIP" mission was also underway as aircraft were gathering valuable data about Hurricane Karl as he moves inland.

(NASA/Goddard Space Flight Center) NASA wrapped up one of its largest hurricane research efforts ever last week after nearly two months of flights that broke new ground in the study of tropical cyclones and delivered data that scientists will now be able to analyze for years to come.

(NASA/Goddard Space Flight Center) Hurricane Julia intensified rapidly overnight and is now a Category 4 hurricane on the Saffir-Simpson Scale and NASA's Aqua, Terra and TRMM satellites captured clues as they passed over her from space.