Beyond the visible spectrum, our world is illuminated by invisible light.

除了可见光之外，各种不可见光也笼罩着这个世界。

In the time since we've learned of other forms of invisible light: radio, microwave, ultraviolet, X-rays, and gamma rays.

随着时间推进，我们学到了很多其他类型的不可见光：无线电、微波、紫外线、X射线和伽玛射线。

All of this other light that we can't see, this invisible light, also has a pollution problem.

所有这些我们看不见的其他光， 这种不可见光，也有污染问题。

So for astronomers like me, who use invisible light to study the universe, it's going to be like staring at the Sun and trying to see a birthday candle behind it.

所以对于像我这样使用不可见光研究宇宙的天文学家来说，这就像凝视太阳并试图看到它背后的生日蜡烛一样。

A host of private companies have plans to deploy tens of thousands of satellites into Earth orbit, where they will not only outnumber, literally outnumber the visible stars in the sky, while also beaming invisible light back to Earth.

许多私营公司计划将数万颗卫星部署到地球轨道， 在那里它们不仅数量超过， 实际上超过天空中可见星星的数量，同时还将不可见光发射回地球。