Echoes of Apollo of the Moon's surface: The next "World Moon Bounce Day" was scheduled for the month preceding Apollo 13's 40th anniversary in March or April 2010. Echoes of Apollo also provide a news clipping service for space news. Its main focus is on space missions, but also contains interesting astronomy news, especially when associated with radio telescopes. It is updated regularly during the week and can be viewed at: . The website provides significant information about the Apollo program and the communications network that supported the program. (http://www.wia.org.au/members/armag/2009/august/) Echoes of Apollo Echoes of Apollo is an international organisation formed in January
Apollo program landings. The S-IC first stage burned RP-1/LOX for a rated thrust of , which was upgraded to . The second and third stages burned liquid hydrogen, and the third stage was a modified version of the S-IVB, with thrust increased to and capability to restart the engine for translunar injection after reaching a parking orbit. NASA's Director of Flight Crew Operations during the Apollo program was Donald K. "Deke" Slayton, one of the original Mercury Seven astronauts who was medically grounded in September 1962 due to a heart murmur. Slayton was responsible for making all Gemini and Apollo crew assignments.