But out in space, there are entire exoplanets made of the stuff.

但在太空中，存在整个由这种物质构成的系外行星。

Now that we've found over 4,100 exoplanets, we've learned something rather disappointing.

至今我们已发现了 4100 多颗系外行星，亦认识到一些令人失望的事实。

The Kepler space telescope has discovered more than 130 exoplanets in our galaxy.

开普勒望远镜已经发现了银河中超过130颗行星。

" For this decade, our highest priority is a telescope for observing habitable exoplanets."

“在这十年中，我们的首要任务是用望远镜观测可居住的系外行星。”

I actually told you how diverse exoplanets are.

我已经告诉过你们系外行星的 种类有多么繁杂了。

In March 2022, we reached a major milestone in space exploration: 5,000 known exoplanets.

2022 年 3 月，我们达成了太空探索的一个重要成就：5000 个已知系外行星。

Not all bots are bad. Some are just geeky, like a bot that describes imaginary exoplanets.

不过并不是所有机器人都是不好的。有一些机器人只是比较呆，比如有的机器人账号描绘虚构的系外行星。

NASA says it has so far confirmed more than 5,000 exoplanets.

NASA表示，到目前为止，已经确认了5000多颗系外行星。

And they realized that lava wasn't reflective enough to explain these bright exoplanets they were seeing.

他们发现，熔岩的反射性不足以解释他们所看到的这些明亮的系外行星。

Scientists have discovered more than 4300 exoplanets like 486b but don't pack your bags just yet.

科学家们已经发现了4300多颗系外行星，比如486 b，但现在还结束。

And the highlighted stars are those with known exoplanets.

那些被突出标注的恒星 都有已知的系外行星。

The planets examined in the study are called exoplanets.

这项研究中检测的行星被称为系外行星。

In the last two years, astronomers have found seven exoplanets around the star TRAPPIST-1, only 40 light-years away.

在过去的两年中，天文学家在TRAPPIST-1行星周围发现了7颗系外行星，那里距地球仅有40光年。

And these colorful dots mark the position of stars with known " exoplanets" .

这些彩色圆点标记了环绕着已知" 系外行星" 的恒星的位置。

So NASA's asking for a citizen scientist to help identify exoplanets.

因此，美国宇航局正在寻求一名民间科学家来帮助识别系外行星。

And that poetic description holds true for a lot of exoplanets, too.

而这种诗意般的描述对很多太阳系外行星也同样适用。

A NASA spacecraft called Kepler has found thousands of exoplanets this way.

美国宇航局一艘名为开普勒的宇宙飞船以这种方式发现了数千颗系外行星。

For all we knew, these so-called " exoplanets" could only be found in fiction.

据我们所知，所谓的" 系外行星" 只存在于小说中。

Not all exoplanets are good for humans to live on.

并不是所有的系外行星都适合人类居住。

In the last few decades, astronomers have discovered thousands of exoplanets orbiting other stars.

在过去几十年的时间里，天文学家发现了数千颗围绕其他恒星运转的系外行星。