But spiral galaxies are those that look like giant pinwheel.

但是旋系就像巨大风车一样。

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

但是他能在1889年就旋系吗？

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·鲁宾一直在观察旋系。

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

如果这两个旋系相撞，它们会结合成新椭圆系。

Spiral galaxies are a common galaxy type.

旋系是一种常见系类型。

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

这使得它们类似于旋系中央凸起恒。

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

旋状系旋臂运行速度似乎比用物理法则算出速度快。

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

它也包括很多发系，包括狮子座Triplet，由三个旋系组成一组。

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，也是个漩涡系，它有两支旋臂，围绕着四溢中心旋转。

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

大约一半旋系有一个直结构，称为棒，从中心出来。

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

我们见过旋系——我们就生活在这样一个系中！

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旋系。

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一样旋状系兴起。

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

大多数旋系都有充满活力蓝色圆盘，由大质量炽热发恒控制着它们芒散射。

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，银河系呈旋状。

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

另一个是旋系，有时被称为“隐藏系”，它看起来很像我们家乡银河系。

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

这使它成为一个棒旋系，就像可观测宇宙中大多数系一样。

Seafoot Galaxy A spiral galaxy with a bright, compact nucleus.

海脚系 一个拥有明亮、紧凑核心旋系。

The Milky Way is spiral disc galaxy.

银河系是旋盘系。

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旋系之间，偶尔系之间会发生碰撞和相互作用。