Its neutrinos reached Earth about three hours ahead of the visible light.

这些中微子比提前三小时抵达地球。

This pulse can be detected in visible light, radio waves, and even X-rays!

这种脉冲以在、无线电波、甚至X射线中被探测到！

But in visible light the planet looks almost featureless.

但在下裸眼观看，这颗看起来就几乎毫无特色。

There are clouds, but again they're difficult to see in visible light.

天王的有云团环绕，但同样的，在下很难看到。

This is what we call “visible light, ” also known as the visible spectrum.

这就是我们所说的“”，又叫谱。

At the lower end of the spectrum, there's radio, infrared, and visible light.

在谱的低频端的是无线电，红线，和。

Together, all the colors make up the spectrum of visible light—the light we can see.

所有的颜色一起构成了的谱——我们所能看到的。

The wavelengths we see through our eyes, we call visible light.

我们通过眼睛看到的波长，我们称之为。

The exoplanet Fomalhaut b was the first one photographed with visible light.

这个名为“北落师门b”的系是第一个用视拍到的。

Together with visible light, all these types of radiation are called the electromagnetic spectrum.

同一起，所有类型的辐射都叫做电磁频谱。

Just like visible light, x-rays are less likely to penetrate denser materials.

类似于，X线难以穿过密度高的物体。

There, they absorb infrared radiation and convert it to visible green light.

在那里，它们吸收红辐射，并将其转化为的绿。

Infrared has a longer wavelength than visible light.

红线的波长比更长。

And finally, we arrive back thirteen billion years ago, at the beginning of visible light.

最后，我们抵达 130 亿年前抵达的起源。

A typical optical telescope has a diameter a few million times the wavelength of visible light.

传统的学望远镜的直径是波长的数百万倍。

Furthermore, it lies behind a shroud of dust that blocks any visible light from passing through.

此在它前面还有一层阻隔任何线通过的尘埃。

Visible light just passes over them.

只会穿过它们。

The whole kaboodle lets visible light pass untrammelled, while absorbing infrared and converting it into heat.

整个结构能够让自由通过，同时吸收红线并将其转化为热。

Radio waves pass right around “normal” telescopes, ones that we use to observe visible light.

无线电波会从我们用来观测的“普通”望远镜周边穿过。

That energy is emitted as photons of visible light.

能量以的子形式发射。