Most black holes form when very massive stars die.

大部分的黑洞都由质量非常庞大的恒星死亡而形成。

Massive stars explode and scatter their heavy elements into the Universe, and that takes time.

大质量恒星爆炸并将重元素散布到宇宙中，这需要时间。

And all the young, massive stars have long since exploded, and all that's left are less massive, redder stars.

所有年轻的大质量恒星都已经爆炸很久了，剩下的只有质量较小、更红的恒星。

When a massive star dies, it leaves a smaller, remnant core behind.

在一颗大质量恒星灭亡时，会留下一个坍缩的核。

I would love to know why very massive stars explode in supernovae.

我非常想知道为什么恒星质量 达到一定程度时就会发生超新星爆发。

How long would it take for our planet to orbit this massive star?

我们的星球绕着这颗巨大的恒星运行需要多长时间呢？

The massive star explosion, called a supernova, results in a massive black hole.

大质量恒星爆炸，被称为超新星，会产生一个大质量黑洞。

A pulsar is the rapidly rotating ultra-dense remnant of a collapsed massive star.

脉冲星是一种快速转动的超高密度残骸，来自毁灭的大型恒星。

Neutron stars are the remains of massive stars that have collapsed into themselves.

中子星是大质量恒星坍缩后的残骸。

This massive star called HH 1177 is in a galaxy called Large Magellanic Cloud.

这颗名为HH 1177的大质量恒星位于大麦哲伦星云中。

The problem with exoplanets is they're right next to a big, bright, massive star.

系外行星的问题在于它们紧挨着一颗又大又亮的大质量恒星。

Within the cloudy halls of Carina, Hubble detects the death throes of a massive star.

在船底座星云云雾遮挠的中心，哈勃探测到一个正在死亡的巨型恒星。

But more massive stars do make quite the spectacle.

但更大质量的恒星确实能制造出壮观的景象。

When a massive star explodes, it leaves behind a dense spinning core made entirely of neutrons.

当一个大质量的恒星爆炸时，它会留下一个完全由中子组成的高密度旋转核心。

Supernovae are cataclysmic cosmic explosions that occur when massive stars reach the end of their lives.

超新星是一种灾难性的宇宙爆炸事件，发生在庞大恒星生命周期的末期。

Colliding black holes should not produce such light—but the death of a very massive star could.

碰撞的黑洞不应该产生这样的光芒，但一颗大质量恒星死亡后却可以。

More massive stars like the Sun live shorter lives.

像太阳这样质量更大的恒星寿命更短。

Pulsars, or fast-spinning neutron stars, originate from the imploded cores of massive dying stars through supernova explosions.

脉冲星，或快速旋转的中子星，起源于巨大的垂死恒星通过超新星爆炸的内爆核心。

Eventually only the most massive stars are left, and those tend to blow up.

最终只剩下质量最大的恒星，而这些恒星往往会爆炸。

Eventually, though, the light from the massive stars will win, zapping away at the structures, dissolving them.

不过，大质量恒星发出的光最终会占上风，摧毁这些结构，将它们溶解。