摘要
想象一下,即使是在夜晚,我们也能一直利用太阳能。这也许即将成为现实。Imagine being able to use energy from the sun all the time,even when it's night.That's the idea that scientists at Caltech are exploring.Theyre working on collect⁃ing sunlight in space and sending its en⁃ergy to Earth.On Earth,sunlight can be blocked by clouds.And of course,at night,there is no sunlight.But in space,the sun shines all the time.As a result,there's far more solar power in space than there is on Earth.The problem is figuring out a way to use it.
