The space agency, Air Force and Navy jointly supported the program.

VOA: special.2010.07.07

Medical science, bolstered by research from the U.S.Environmental Protection Agency, shows a strong link between air pollution and heart disease and stroke.

VOA: standard.2010.08.04

The humanitarian aid agency says its air service to the war-torn Central African country will run out of money by August 15.

VOA: standard.2009.08.02

The European air traffic control agency Eurocontrol said only 6,000 flights would take place in European airspace Saturday - down from the 22,000 normally expected.

VOA: standard.2010.04.17