Blue light goes more deeply into the ocean than light at the red end of the spectrum.

蓝光比光谱红色端的光更深入海洋。

Overall, about 1% of the light absorbed is re-emitted as wavelengths at the red end of the spectrum.

大体上，被吸收的光中大约有1%被植物以位于光谱的红色尾端波长的形式重新反射出去。

So blue light has a relatively short wavelength, and then you go through green and yellow, all the way to the red end of the spectrum, which has a very large wavelength.

蓝色光的波长比较短，其次是绿色和黄色，一直到红色，红光的波长非常长。

Compared to our sun, their spectral lines were all shifted to the red end of the spectrum, which seemed to suggest there were a bunch of fuzzy objects in space hurdling away from earth.

与我们的太阳相比，它们的光谱线都转移到了光谱的红色一端，这似乎表明太空中有一堆模糊的物体正在远离地球。

In the case of light, therefore, this means that stars moving away from us will have their spectra shifted toward the red end of the spectrum (red-shifted) and those moving toward us will have their spectra blue-shifted.

因此，就光而言，这意味着远离我们的恒星的光谱将向光谱的红端移动（红移），而向我们移动的恒星的光谱将发生蓝移。

When light is emitted by a distant star or galaxy, its wavelength doesn't have to stay fixed, it can be squashed or stretched, and when light's stretched, its wavelength increases and it moves to the red end of the spectrum.

来自遥远的恒星或星系的光，它的波长并非一成不变，而是会被压缩或者拉伸的，当光波被拉伸时，波长会增加，于是朝光谱上的红色方向移动。

To do so, the perovskite layer is tweaked to absorb light from the blue end of the spectrum while the silicon layer mops up the wavelengths at the red end, says Chris Case, the company's chief technology officer.

该公司首席技术官克里斯·凯斯 (Chris Case) 表示， 为了实现这一目标， 钙钛矿层经过调整， 可以吸收光谱蓝端的光， 而硅层则可以吸收红端的波长。