The surface formed mostly in the last billion years, which makes it fresher and more recently active than any rocky planet other than earth.

它的表面大部分是在过去十亿年里形成的，使得它比地球以外的任何岩石行星都更新鲜活跃。

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Even if BP's current "top kill" effort to stop the gushing well works, the oil hanging at and below the surface still needs to be cleaned up before a storm makes it worse, Studwell said.

即使英国石油公司目前的“杀手锏”能成功阻止原油的泄露，但是在飓风将这一切变得更糟糕之前，那些漂浮在海面上以及海面下的原油需要尽快清理干净。

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It is clear, then, that science is only just starting to scratch the surface of what the brain is capable of, and how exactly it makes us who we are.

很明显，对于大脑的能力，以及我们准确的认识自己而言，科学家们只是刚刚开始触及到真相。

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Ultimately, it makes me think the Surface Pro was something of an afterthought.

FORBES: Links 6 Feb: Microsoft's Surface Pro Reviews. Not So Good Actually

While it will probably take at least another 20 years before Zubrin -- or anyone else for that matter -- makes it to the Martian surface, NASA and other space agencies are already drawing up plans for a voyage that will present astronauts not only with physical but also psychological challenges never faced by humans before.

CNN: Mars on the brain? Red Planet pioneers to face cosmic mind trip

Solar energy can, of course, be gathered on Earth, but only about half of the sun's radiation ever makes it to the Earth's surface--the rest is either absorbed by the atmosphere or reflected back by clouds.

FORBES: Galactic Gold Mine?