In one of the first images transmitted back to Earth following MESSENGER's second flyby of Mercury on October 6, 2008, a spectacular and extensive system of rays can be seen.

08年10月6号，“信使号”二次飞越水星后传回地球的首批照片发现了广阔壮观的辐射纹。

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UVA rays can penetrate deeply into your skin and suppress your immune system. This increases the risk of wrinkling and age spots.

UVA能穿透你的皮肤，使免疫系统的功能下降，这就增加了长皱纹和老年斑的危险。

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The heliosphere shields the solar system from 90 percent of energetic cosmic rays — high-speed charged particles that would otherwise bombard the planets and harm life.

日球层就像一个盾牌，挡住了90%高能宇宙射线。 宇宙射线由高速带电粒子组成，会轰击星球并伤害生物。

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The Sun's magnetic field and solar wind - mainly in the form of electrons and protons coming out of the Sun - protects the entire Solar System by acting as a sort of shield from cosmic rays (very energetic particles and radiation from outer space).

BBC: Viewpoint: The Sun and climate change

Now picture a health-care system where a doctor has medical records at his fingertips, can see x-rays with the click of a mouse, is able to learn and apply the latest diagnostic and surgical technique from anywhere in the world.

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