Satoki Kurokawa, a spokesman for JAXA, revealed the ambition to an international conference in Tokyo this week, but added the agency has not yet prepared the budget for the project.

JAXA hopes to launch a satellite into lunar orbit next year, followed by an unmanned spacecraft that will land on the Moon and a probe ship that will collect and return lunar samples.

Under the plan, astronauts would be sent to the Moon by around 2020 so that they will start construction of the base to be completed by 2030, the Kurokawa said.

JAXA earlier had given 2025 as the target date for a lunar base.

"The feasibility of the plan is unclear at this point as we need to gain understanding by the government and the Japanese people on our plan, but technologically it would be possible in a few decades," Kurokawa said.

"Exploring a frontier is always a mission of science. In addition, space programs have the potential to create cutting-edge technologies, particularly in the field of robotics," he said, explaining benefits of the program.

Japan's space program has been on a rebound with a series of satellite launches after an embarrassment in 2003, when JAXA had to abort a rocket carrying a spy satellite just 10 minutes after liftoff.

The United States is planning to return astronauts to the Moon by 2020. The last American to set foot on the satellite was astronaut Eugene Cernan, on Dec. 11, 1972.

U.S. President George W. Bush also has set the goal of a manned mission to Mars, but has not specified a date. ESA also plans a human flight to the Moon by 2020 and China and India are preparing to launch robotic missions sometime in the next two years. Email This Article

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