It is an increased area of low thick clouds, the type that reflects a rare portion of solar energy back to space and cools the Earth.

它是一片变大的低厚云层，这种云层将少量的太阳能反射回太空，为地球降温。

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A surface's albedo is the percentage of incoming solar energy, sunlight, that's reflected off that surface back into space.

一个表面的反照率是入射的太阳能、阳光从这个表面反射回太空的百分比。

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If we could power such an elevator with solar energy, we could simply rise up into space for a fraction of the cost of a trip by rocket or shuttle.

如果我们能利用太阳能为这样的电梯提供动力，我们只需花费乘坐火箭或航天飞机旅行费用的一小部分就能进入太空。

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For years, scientists and space enthusiasts have dreamed that new methods of harnessing solar energy and mining precious metals in space could lead to huge profits.

FORBES: Galactic Gold Mine?

Theoretically, mining and collecting solar energy in space for use on Earth hold tremendous potential.

FORBES: Galactic Gold Mine?

Saudi Arabia is the newest and hottest solar power market to attract the attention of emerging leaders in the solar-energy space.

FORBES: Solar Heats Up in Saudi Arabia