But spiral galaxies are those that look like giant pinwheel.

但是螺旋星系就像巨大风车样。

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.

如果这两个螺旋星系相撞，它们会结合成新椭星系。

Spiral galaxies are a common galaxy type.

螺旋星系是种常见星系类型。

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，随推移，通过碰撞和崩解，星云失去了它垂直于旋转平面上粒子高度变成扁平状（大概是二维盘）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.

银河系是个螺旋星系，太阳和太阳系都是它分。除此以外，还有群恒星聚集在起，形成了个明亮中心。

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位置——大约距离附近个螺旋星系约 50000 光年，距离个较小星系约 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蓝色盘，由大质量炽热发光恒星控制它们光芒散射。

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

从宇宙诞生初期到像银河系样旋状星系兴起。

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

它也包括很多发光星系，包括狮子座Triplet，由三个螺旋星系组成组。

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

仙女座和银河系样，也是个漩涡星系，它有两支旋臂，围绕星光四溢中心旋转。

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.

上面没有漂亮螺旋星系，或是星云什么，但对于研究宇宙科学家来说，这张照片意义非凡，因为它详尽地记载宇宙最早期样貌。

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这19个螺旋星系，突显了星星和发光尘埃细节，这是天文学家以前从未见过。

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

另个是螺旋星系，有被称为“隐藏星系”，它看起来很像我们家乡银河系。

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

我们见过螺旋星系——我们就生活在这样个星系中！

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

这使得它们类似于螺旋星系中央凸起恒星。

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

旋状星系旋臂运行速度似乎比用物理法则算出速度快。

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

大约半螺旋星系有个直结构，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·鲁宾直在观察螺旋星系。