But spiral galaxies are those that look like giant pinwheel.

但是螺旋星系就像巨大的风车一样。

But could he have known about spiral galaxies back in 1889?

但是他能在1889年就知道螺旋星系吗？

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

两个螺旋星系相撞，它们会结合成新的椭星系。

Spiral galaxies are a common galaxy type.

螺旋星系是一种常见的星系类型。

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，星云失去了它垂直于旋转平面上的粒子高度变成扁平状（大概是二维的盘）旋转，就像太阳系或螺旋星系。

The Milky Way is a spiral galaxy that both the Sun and solar system are a part, along with a bunch of stars clustered together that create a brightly lit center.

银河系是一个螺旋星系，太阳和太阳系都是它的一部分。除此以外，还有一群恒星聚集在一起，形成了一个明亮的中心。

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——大附近一个螺旋星系 50000 光年，一个较小星系 15000 光年。

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

通过观察其他星系，我们可以了解自己之外的世界，那就是为什么我们断定，银河系呈螺旋状。

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

大多数螺旋星系都有充满活力的蓝色盘，由大质量的炽热发光恒星控制着它们光芒的散射。

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

从宇宙诞生的初期到像银河系一样的旋状星系的兴起。

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星系，包括狮子座Triplet，由三个螺旋星系组成的一组。

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，也是个漩涡星系，它有两支旋臂，围绕着星光四溢的中心旋转。

It doesn't have the beauty of a spiral galaxy or a nebula but to a scientist, to a cosmologist, it is the most beautiful picture ever taken, because it contains a vast amount of information about the very earliest history of our universe.

上面没有漂亮的螺旋星系，或是星云什么的，但对于研究宇宙的科学家来说，张照片意义非凡，因为它详尽地记载着宇宙最早期的样貌。

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19个螺旋星系，突显了星星和发光尘埃的细节，是天文学家以前从未见过的。

Another was a spiral galaxy, sometimes called the " Hidden Galaxy, " which looks much like our home galaxy, the Milky Way.

另一个是螺旋星系，有时被称为“隐藏星系”，它看起来很像我们的家乡银河系。

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

我们见过螺旋星系的——我们就生活在样一个星系中！

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

使得它们类似于螺旋星系中央凸起的恒星。

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

旋状星系的旋臂运行的速度似乎比用物理法则算出的速度快。

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

大一半的螺旋星系有一个直的结构，称为棒，从中心出来。

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·鲁宾一直在观察螺旋星系。