Letter Rate 15¢ Package Rate 15¢ Postcard Rate 10¢ Effective 5/29/1978 United States 7/11/1979 Skylab Fell to Earth Parts of the US space station Skylab fell out of orbit and crashed down in Australia and the Indian Ocean. Manned Skylab missions had ended five years previously. No one was injured. American President Jimmy Carter (1/20/1977-1/20/1981) British Prime Minister Margaret Thatcher (5/4/1979-11/28/1990) German President Karl Carstens (7/1/1979-6/30/1984)