opinion

Having had his mind on his whirlwind trip to Tokyo, Singapore, Shanghai, Beijing and Seoul, Obama probably hasn't had time to appreciate the recent news that the presence of water on the moon has been confirmed. NASA purposely crashed two spacecraft into a crater at the moon's south pole and kicked up debris that included ice and water vapor.

The discovery ironically came only months after former astronauts in the old Apollo program, which first sent men to the moon 40 years ago, had urged Obama to give up on plans to go back there and instead concentrate on a manned mission to Mars.

In fact, Buzz Aldrin, who walked on the moon in 1969 with Neil Armstrong, said the water discovery doesn't justify going back. But in his zeal to get to Mars, he may be a bit myopic. Scientists say water on the moon makes it even more ideal as a low-gravity launching pad to deep-space points, including Mars.

But there's the cost. Perhaps seeking a better legacy, President George W. Bush began a program to return U.S. astronauts to the moon and to land a man on Mars by 2020. He didn't give NASA much more money, though. And while Obama lauded manned space flight on the campaign trail, he hasn't made a corresponding financial commitment.

Obama said that decision would be guided by a committee of experts he appointed. That panel reported in September that NASA would need at least $3 billion added to its annual budget of nearly $19 billion to achieve Bush's goals. It gave Obama other options, including extending the life of the space shuttle fleet, which is scheduled to be retired next year.

Of course, the shuttles can't travel out to deep space. And they're so old and patched-up that it's risky to keep sending them even to the low-orbit International Space Station, which is itself scheduled to be shut down in 2015. The Space Station, however, does provide another model for Obama that he should consider.

Although largely a U.S. enterprise, the Space Station has been an international effort, with various nations providing components, crew and scientists. If cost is the primary obstacle to moon and Mars missions that might provide scientific discoveries beneficial to all mankind, then why shouldn't that endeavor, like the Space Station, be international?