"Free radicals — like the kind formed from sun exposure — damage the membrane of skin cells, potentially allowing damage to the DNA of that cell," says Heller.

“自由基(比如由阳光照射而形成的粒子)会损害皮肤细胞膜，更会对细胞DNA构成潜在的威胁。”Heller说。

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What looks like an artist's rendering of the sun is actually a human egg cell.

这张看上去像艺术家创作的太阳图，实际上是人类的卵细胞。

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Pollutants, sun, stress, poor diet, alcohol and some medications can cause our bodies to produce free radicals which can lead to cell damage.

污染物，阳光，压力，不良饮食习惯，酒精和一些药物可能会导致我们的身体产生自由基，可导致细胞损伤。

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Europe has similarly daft subsidy regimes with equally perverse consequences the German subsidy for solar energy, for instance, which has diverted the world's solar-cell production to sun-free Germany, thus raising the price in sunny countries where it might be usefully employed.

ECONOMIST: Climate change

Traditionally these are large pieces of polished metal, steered by electric motors to keep the sun's rays focused on the cell.

ECONOMIST: Monitor

When the sun goes down, the hydrogen powers a fuel cell that runs your home.

FORBES: Cheap Hydrogen From Dirty Water...Maybe