The lecture was on cosmic gas clouds. That's funny!

那个演讲是关于宇宙气体云的。多有趣啊!

Space is weird. Gas clouds, though, are huge, and they DO collide.

太空是很奇怪的。然而，气体云是巨大的，它们确实会发生碰撞。

It was discovered in the Tarantula Nebula, a huge gas cloud in the Large Magellanic Cloud galaxy.

它是在狼蛛星云中发现的，这是大麦哲伦星系中的一个巨大的气体云。

They would either be hit by the large chunks of rock or suffocated by the massive gas clouds.

他们要么被大块的岩石击中，要么被巨大的气体云窒息而死。

There are less dense objects in space, too, like gas clouds, and the way they emit light is different.

太空中也有密度较小的物体，比如气体云，它们发光的方式也不同。

For example, it can increase the amount of gas in a galaxy or cause gas clouds to come together.

例如，可以增加星系内的气体含量，或促使气云聚集到一起。

And here's a funny thing about Orion: What you're seeing is not just a gas cloud in space.

你看到的不仅仅是太空中的气体云。

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。

Only weird and amazing giant stars and smaller heavenly bodies, whirling among the gas clouds in an infinite, infinite universe.

只有奇怪而惊人的巨星和较小的天体在无边无际的宇宙中的气云间旋转。

Binary stars almost certainly form together, near each other in the gas cloud that was their original stellar nursery.

物理双星几乎可以肯定是一起形成的，在气体云中互相靠近，那是它们最初的星球摇篮。

This process is aided by collisions with gas clouds and the tidal forces of the collected stars in the galaxy itself.

这一过程是由气体云的碰撞和星系中收集的恒星的潮汐力所辅助的。

Stars and gas clouds in space are mostly hydrogen, with some helium and heavier elements thrown in.

太空中的恒星和气体云主要由氢组成，还有一些氦和较重的元素。

And so, the scientists right now, are looking at this gas cloud near a black hole, and inferring what elements are in it.

所以，科学家们现在正在观察黑洞附近的气体云，并推断其中有什么元素。

In the case of thin gas clouds in space, the atoms are basically floating free, rarely bumping into one another.

至于天空中稀薄的气体云，其原子基本上是自由漂浮的，很少相互碰撞。

The Large Cloud sports the biggest and most active star forming gas cloud in any nearby galaxy: the Tarantula Nebula.

大麦哲伦星云促成了附近星系中最大、最活跃的气体云：狼蛛星云。

Once that cloud hits the air, it expands, breaking up into snotty strings, then a series of different-sized droplets all trapped in a turbulent gas cloud.

云状物进入空气之后，它就开始扩大，分裂成鼻涕状的细丝，接着变成不同尺寸的小液滴，全都包含在一个骚动的气团中。

When we look at gas clouds in space, we see stars forming, we see protoplanetary disks around them, we see the planets themselves getting their start.

当我们看着太空中的一团气体云时，我们能观察到恒星的形成，观察到它们周围的原行星盘，以及行星本身的形成。

This created a toxic gas cloud that killed fifty percent of all animal life on Iceland, which caused a famine that killed twenty five percent of the human population on the island.

形成的毒气云杀死了冰岛 50% 的动物，这引起了一场饥荒，导致岛上 25% 的人口死亡。

Not only that, the germ-infested gas cloud is less dense than the air around it, so it rises upwards right to where ventilation systems and other people's unsuspecting noses and mouths await.

不仅如此，这个含有大量病菌的气团比周围空气的密度要小，所以它会慢慢上升，升至通风系统中，和其他没有提防这一病菌的人的口鼻中。

Every now and again we'll see a flare from it as it swallows down a gas cloud or something like that, but nowhere near what's needed to switch it fully on.

不时地，我们会看到它吞下气体云或类似的东西时发出的耀斑，但远不及完全启动它所需要的。