The orion nebula is a special kind of nebula called a stellar nursery.

猎座星云是一种特殊星云，叫做恒星摇篮。

Those elements will spread out to become a nebula, a rich chemical cloud drifting through space.

这些物质最后会扩散开来，形成新星云，即一大团富含化学物质云团飘逸在宇宙之中。

Orion's sword is home to the great orion nebula, a cloud of dust, hydrogen, helium, and other gases.

猎位置有猎座星云，是一种由尘埃、氢气、氦气及其他气体组成云。

He saw clusters of stars, brightly colored nebulas, even entire galaxies!

他看到了数星团，明亮星云，甚至还看到了整个银河！

That's a very common shape for planetary nebulae.

这是行星状星云很常见形状。

However, this nebula started off more or less as a big shapeless blob.

是一开始这星云或多或少更像个不成形水滴。

In a lot of nebulae there's no sharp edge; they just kinda fade away.

在很多星云中并没有尖锐边缘；它们只是会慢慢消失。

Gas inside a nebula can be in turmoil, too.

星云内气体也可能处于混乱状态。

It is a nebula: a star-forming region where new stars are being born.

一个正在诞生新恒星恒星形成区域。

The Orion nebula is one of the wonders of the universe.

猎座星云是宇宙中奇迹之一。

This object is what we call a planetary nebula.

这个物体就是我们所说行星状星云。

These can create lovely sheets, tendrils, and filaments in nebulae as well.

这些也可以在星云中创造出可爱片状、卷须和丝状物。

Among the other four images were two that showed huge clouds of gas and dust – called nebulas.

在其他四张照片中，有两张展示了巨大气体和尘埃云——也就是星云。

That usually happens when a gas cloud is expanding, like in a planetary nebula or supernova.

这通常发生在气体云膨胀时，比如行星状星云或超新星。

Everything we find on the Earth today also originated in that nebula.

我们地球上一切也都来源于那片星云。

Nebulae are clouds of gas and dust in space.

星云是太空中由气体和尘埃组成云。

The glow in a planetary nebula is due to the hot central white dwarf exciting the gas.

行星状星云中光芒是由中央炽热白矮星激发气体产生。

At the centre of the nebula lies the remnant of the star, its core, crushed by the force of gravity.

在星云中心处，这颗恒星星核依然存在着，在引力作用下它已是面目全非。

When Pan Gu broke the nebula apart, The dense and pure defined, did clearing start.

当盘古破开星云， 稠密分明， 清净始。

The gas glows, and we call this an emission nebula.

气体会发光，我们称之为发射星云。