The Parker solar probe is on a $1.5 billion mission and will fly through the sun's atmosphere.

帕克太阳探测器正在执行一项耗资15亿美元的任务，它将穿越太阳大气层。

But outside of the sun's surface, the sun's upper atmosphere can reach an unbelievable 1 million degrees.

但在太阳表面之外，太阳的上层大气可以达到令人难以置信的 100 万度。

But this total darkness can also be kind of cool for scientists who study the sun's atmosphere called the corona.

但这种完全的黑暗对研究太阳大气日冕的科学家来说也很酷。

As parker flies through the corona that's the sun's atmosphere it makes new discoveries that were impossible to study from afar.

当帕克飞过日冕(太阳的大气层)时，它有了一些新的发现，这些发现是无法从远处进行研究的。

This spectrum subtraction is what happens as sunlight interacts with the elements in the sun's atmosphere and in earth's atmosphere too.

当太阳光与太阳大气中的元素以及地球大气中的元素相互作用时，就会发生频谱相减。

NASA is planning to send a spacecraft there on the first mission to fly into the sun's atmosphere.

NASA 正计划向那里发射一艘航天器，执行首次飞入太阳大气层的任务。

In 2012, Voyager 1 was the first spacecraft to reach beyond the region of space made up of charged particles from the sun's upper atmosphere.

2012年“旅行者1号”发射升空，它是第一艘到达由太阳高层大气带电粒子组成的空间区域外的航天器。

Together these make up the sun’s outer atmosphere, and a total solar eclipse is the only occasion you have to lay eyes on it.

这些共同构成了太阳的外层大气，而日全食是唯一你必须关注它的场合。

As I'll cover in more detail in a future episode, the corona is the sun's atmosphere, an ethereally thin envelope of gas that stretches from the Sun's surface into space for millions of kilometers.

日冕是太阳的大气层，我将在以后的章节中更详细地介绍，日冕是一层空气般稀薄的气体，从太阳表面延伸到几百千米外的太空中。