July 20, 1999
NASA/Jet Propulsion Laboratory
An experiment left on the lunar surface 30 years ago by the Apollo 11 astronauts continues to return valuable data about the Earth-Moon system to scientific centers around the world, including NASA's Jet Propulsion Laboratory, Pasadena, Calif. Scientists who analyze the data from the Lunar Laser Ranging Experiment have measured, among other things, that the Moon is moving away from the Earth and that the shape of the Earth is changing at an unprecedented accuracy level.
Scientists from all over the world are in Pasadena this week to discuss their current knowledge of Mars and what questions they want to answer about the planet in the next decade. The fifth International Conference on Mars is being held July 19-23 at the California Institute of Technology. The first conference was held in 1973 when NASA's Mariner 9 spacecraft was returning data from the red planet. The second and third conferences convened in 1979 and 1981 to review data from the Viking mission. The fourth conference took place in 1989.
The above story is based on materials provided by NASA/Jet Propulsion Laboratory. Note: Materials may be edited for content and length.
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NASA/Jet Propulsion Laboratory. "World's Leading Mars Scientists Gather At Caltech." ScienceDaily. ScienceDaily, 20 July 1999. <www.sciencedaily.com/releases/1999/07/990720083716.htm>.
NASA/Jet Propulsion Laboratory. (1999, July 20). World's Leading Mars Scientists Gather At Caltech. ScienceDaily. Retrieved April 19, 2014 from www.sciencedaily.com/releases/1999/07/990720083716.htm
NASA/Jet Propulsion Laboratory. "World's Leading Mars Scientists Gather At Caltech." ScienceDaily. www.sciencedaily.com/releases/1999/07/990720083716.htm (accessed April 19, 2014).