Spiral galaxies are a common galaxy type.

系是一种常见的系类型。

But spiral galaxies are those that look like giant pinwheel.

但是系就像巨大的风车一样。

In the 1960s and 1970s, astronomer Vera Rubin was observing spiral galaxies.

在20世纪60年代和70年代，天文学家维拉·鲁宾一直在观察系。

Spiral galaxies we've seen: We live in one!

我见过系的——我就活在这样一个系中！

This makes them similar to the stars in the central bulges of spiral galaxies.

这使得它类似于系中央凸起的恒。

If these two spiral galaxies collided, they would merge into one new elliptical galaxy.

如果这两个系相撞，它会结合成新的椭圆系。

The arms of spiral galaxies seem to move faster than the laws of physics would allow.

状系的臂运行的速度似乎比用物理法则算出的速度快。

It also contains many bright galaxies, including the Leo Triplet, a group of three spiral galaxies.

它也包括很多发光的系，包括狮子座Triplet，由三个系组成的一组。

This is Andromeda, a spiral galaxy roughly the same size and mass as the Milky Way.

这是仙女座，一个大小和质量都跟银河系相差无几的系。

About half of spiral galaxies have a straight structure, called a bar, coming out from the center.

大约一半的系有一个直的结构，称为棒，从中心出来。

Like the Milky Way, Andromeda is a spiral galaxy, two ringed arms circling a light-filled centre.

仙女座和银河系一样，也是个漩涡系，它有两支臂，围绕着光四溢的中心转。

From a time near the birth of the cosmos to the rise of spiral galaxies like our own Milky Way.

从宇宙诞的初期到像银河系一样的状系的兴起。

Most spiral galaxies have disks that are a vibrant blue in color, the massive hot luminous stars dominating their emission.

大多数系都有充满活力的蓝色圆盘，由大质量的炽热发光恒控制着它光芒的散射。

Based on other galaxies we see outside of our own is why we conclude that our galaxy's spiraled as I'm shown.

通过观察其他系，我可以了解自己之外的世界，那就是为什么我断定，银河系呈状。

Even spiral galaxies abide by this ratio, right?

甚至漩涡系也遵循这个比例 对吧?

That makes it a barred spiral galaxy, just like most galaxies in the observable universe.

这使它成为一个棒系，就像可观测宇宙中的大多数系一样。

Lenticular galaxies fall somewhere in between elliptical and spiral galaxies Occasionally galaxies collide and interact.

透镜状系位于椭圆系和系之间，偶尔系之间会发碰撞和相互作用。

But only Hubble was able to accurately pinpoint its location — about 50,000 light-years from a nearby spiral galaxy and roughly 15,000 light-years from a smaller galaxy.

但是只有哈勃望远镜能够准确地确定它的位置——大约距离附近一个系约 50000 光年，距离一个较小系约 15000 光年。

It captured these 19 spiral galaxies using near and mid-infrared technology that highlights stars and glowing dust in a level of detail astronomers have never seen before.

它利用近红外和中红外技术捕捉了这19个系，突显了和发光尘埃的细节，这是天文学家以前从未见过的。

So over time, through collisions and crashes, the cloud loses its loft and flattens into a spinning, roughly 2 dimensional disk shape, like a solar system or a spiral galaxy.

所以，随着时间的推移，通过碰撞和崩解，云失去了它垂直于转平面上的粒子高度变成扁平状（大概是二维的圆盘）转，就像太阳系或系。