Radio wavelengths are much longer than those of visible light, and the radio waves from deep space are always weak.
无线电波的波长比可见光长得多，而且来自深空的无线电波总是很弱。
Unlike visible light waves, these radio waves can get through the various gases and dusts in space, and through our own earth's atmosphere comparatively easily.
与可见光波不同的是，这些无线电波可以较容易地穿过太空中的各种气体和灰尘，穿过我们地球的大气层。
The light that we see with our human eyes as a band of rainbow color falls in the range of what's called visible light.
我们用肉眼看到的彩虹色的光属于可见光。
Visible light consists of different colors or wavelengths, which together make up what's called spectrum, a band of colors, like you see in a rainbow.
可见光由不同的颜色或波长组成，它们共同组成了所谓的光谱（一段颜色），就像你在彩虹中看到的那样。
Since most camera flashes emit IR along with their burst of visible light, the one substitution allowed the prototype to transmit and record infrared light.
由于大多数相机闪光灯在发出可见光同时就会发射出红外线，这一替换使得原型机能够发送并记录红外线。
When you want to know if something is transparent to visible light or not, here is the mystery material and here is visible light.
当你想知道某物对可见光是否透明时，这里是神秘物质，这里是可见光。
In optical astronomy, using a telescope and observing the stars that way, we rely on visible light waves.
在光学天文学中，在用望远镜观察恒星时，我们依靠的是可见光波。
A sodium chloride crystal is transparent to visible light.
氯化钠晶体对可见光是透明。
Radio telescopes create pictures of the sky, not in visible light, but in radio waves.
射电望远镜拍摄的天空图片不是可见光，而是无线电波。
Venus isn't even that interesting to look at: a boring cue ball for backyard astronomers, its clouds reflects 75% of visible light.
金星看起来甚至也没有那么有趣：对后院的天文爱好者来说，它是一个无聊的主球，它的云层反射了75%的可见光。
The extension of astronomy from visible light to radio waves to x-rays and gamma rays never failed to lead to the discovery of unusual objects such as radio galaxies, quasars, and pulsars.
从可见光扩展到无线电波，再到X 射线和伽马射线，天文学总是会发现不寻常的物体，如射电星系、类星体和脉冲星。
Most antennas are made in the shape of a dish to collect and reflect the radio waves to the sub reflector, in the same way as a curved mirror focuses visible light to one point.
大多数天线被制成碟形，用以收集和反射无线电波至亚反射器，就像曲面镜将可见光聚焦于一点一样。
Whatever product you use should emit only visible light, because ultraviolet light damages the eyes.
不管你用什么产品，都应该只发出可见光，因为紫外线会伤害眼睛。
She also uses visible light to find unnatural colors that might make the plastics stand out.
她也利用可见光找到不自然的颜色。这种颜色令塑料变得突出。
The new work points the way for an improved version that could hide people and objects from visible light.
这个新设计为一项改良理论指明瞭道路，证明在可见的光线中是能让人和物隐形的。
Tucked away in the corner of an optics catalog, Fergus found a special filter that blocks visible light, but not IR or UV.
费格斯在一本塞在某个角落的光学器材目录里发现了一种能阻隔可见光的滤光片。
Previous images of the Ring Nebula taken by visible-light telescopes usually showed just the inner glowing loop of gas around the star.
以前由可见光望远镜拍摄的星云环仅仅显示出其内部的环绕着恒星的炽热气体环。
Visible light from that time has now been so stretched out that its waves are in the millimeter/submillimeter range.
来自那个时期的可见光延展过广，以至于它的光波达到了毫米、次毫米级别。
Stars with less mass than the sun are smaller and cooler, and hence much fainter in visible light.
质量比太阳小的恒星会比较小和比较冷，几乎不产生可见光。
The observatory is really detecting infrared info, or heat, rather than visible light from the newly discovered galaxies.
科学家们在天文台观测了这些信息的红外状况(热状况)，而不是这些星系发出的可见光。
To illustrate: A meter-wide visible light telescope is a couple of million times wider than the wavelength of light it gathers.
举个例子：米宽光学望远镜要接收可见光波，其宽度就要大于所接受光波波长的数百万倍。
Because dust scatters visible light, infrared studies allow astronomers to see light from objects normally hidden from view.
因为尘埃打散了可视光，红外线的研究使得科学家们看到了来自通常情况下隐藏在物体后面的光。
The M17 SWex "dragon" is hidden within dust clouds that are opaque to visible light.
藏在尘埃云中的M17SWex“龙”在可视光中是看不透的。
The images combine infrared and visible light to increase the contrast between water and land.
这些图片通过结合红外线及可见光来增大水体和陆地的对比。
Objects that are normally bright in visible light look dark, while normally dark objects look especially bright.
那些明亮的物体在可见光下显得黯淡，而那些黯淡的物体却显得特别明亮。
Absorbent material usually pulls in ultraviolet and visible light - but this new material also captures infrared and far infrared light.
吸收性材料通常只能吸收紫外线和可见光——但这种新材料还能够吸收红外和远红外光线。
Stars and planets form within swirling clouds of dust and gas that visible light cannot penetrate, but which infra-red radiation can.
那些漩涡状的尘埃气体云是恒星和行星诞生的摇篮，虽然可见光无法穿透其间，但是红外光却可以做到。
Scientists combined ultraviolet images of the auroras, taken by Hubble over a period of days, with visible-light images of the ringed planet.
科学家把由哈勃望远镜在一段日子里所获取的极光紫外线与这环形星球可见光结合起来。
Related cloaks have been made to work with infrared rays and visible light.
并已制造了可在红外光和可见光波段工作的隐身器件。
Both images were made with infrared and visible light, a combination that increases the contrast between muddy water and land.
上下两幅图都使用了红外线和可见光拍摄，这种结合方法可以突出泥泞的水面和陆地的对比。
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