Why US would go fly to an asteroid?
China Daily | Updated: 2010-04-17 07:59
WASHINGTON - United State President Barack Obama made his case to NASA workers in Florida on Thursday for abandoning plans to return to the moon and instead aim for asteroids, Mars and more robotic missions.
Visiting a nearby asteroid would be a small step with a big impact.
Not only can asteroids tell scientists how planets formed, but they may contain some more primordial elements from the early solar system.
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