At 200,000 kilometers down, we hit the radiative zone.

在 200，000 公里的地方，我们到达了射区。

First, a photon enters the 185,000 mile-thick radiative zone.

首先，光子进入185000英里厚的射区。

It's made possible by a phenomenon called radiative sky cooling.

这是由“天空射冷却”现象实现的可能性。

As heat leaves an object, it becomes cooler, a process known as radiative cooling.

热量离开物体时，物体会变冷，这一过程射冷却。

His team built their device using an aluminum disk that acts as a radiative cooler.

他的团队用铝盘当作射冷却器，制作出他们的设备。

So SkyCool designed a new material with radiative cooling properties that work 24 hours a day.

因此，SkyCool设计了一种具有射冷却特性的新材料，可以24小时工作。

The radiative cooling, in the sense that we're doing, has really never been out there before.

射冷却技术，像我们现在做的这样，以前从未有做过。

Surrounding that is the radiative zone, followed by the convective zone, which extends all the way to the surface.

周围是射区，然后是对流区， 一直延伸到地表。

Instead of traveling across the radiative zone and hitting your eye, the light waves slam into electrons and other particles in the plasma.

光波不会穿越射区然后击中你的眼睛，而会撞上电子和等离子体中的其他颗粒。

You can see there's just a really stark contrast in -- in temperature between the surfaces that are -- these radiative cooling found and the roof of the building.

面板表面和建筑物房顶的温度之间对比非常鲜明。