Globular clusters were a good clue that there was more going on.

球状星团是一个很好的线索，说明还有更多的秘密等待着我们去发掘。

Open, or galactic clusters, and globular clusters.

开放星团或疏散星团，以及球状星团。

In addition, Scott included another layer of signposts: pulsars in globular clusters orbiting the Milky Way.

此外，斯考特还查了另一层路标：绕行银河系的球状星团里的脉冲星。

We know this because in most globulars, the MOST massive stars are LESS massive than the Sun.

我们之所以知道这一点，是因为在大多数球状星团中，质量最大的恒星质量都比太阳的质量小。

“We don't know everything, but that doesn't mean we know nothing, ” reminds a globular character on a few occasions.

“我们不是什么都懂，但这不意味着我们什么都不懂。”

Because globular stars lack heavy metals, it's unlikely they would've formed planets like Earth.

因为球状恒星缺乏重金属，它们不太可能形成像地球这样的行星。

Globular clusters are larger, have hundreds of thousands of stars, and are more spherical.

球状星团更大，有几十万颗恒星，而且更像球状。

The stars in globular clusters tend to have less heavy elements in them too, which you expect if they're old.

球状星团中的恒星往往也含有较少的重元素，如果它们很老的话，这也是你所期望的。

First of all, the stars in a globular cluster aren't exactly like our good old Sun.

首先，球状星团中的恒星并不像我们善良的老太阳。

Ancient clumps of stars that predate the Milky Way, globular clusters are gorgeous and mysterious, and they are veritable millisecond pulsar factories.

球状星团是比银河系更古老的恒星团，既美丽又神秘，而且简直是制造毫秒脉冲星的工厂。