Consider the case of Proxima Centauri, the closest star after the Sun.

以比邻星为例，它是离太阳最近的恒星。

Especially when you consider that there is a planet that orbits inside the habitable zone of Proxima-Centauri named Proxima-Centauri b.

尤其是当你考虑到有一颗行星在比邻星宜居区内部绕轨运行，名叫比邻星b。

That, right there, is Proxima Centauri b, or just Proxima b.

这儿就是目的地，这是比邻星B，也可以简称为比邻B。

But in fact, as Klein later admitted, the picture was not of Proxima Centauri.

但事实上，正如克莱恩后来承认的那样，这张照片并不是半人马座比邻星。

Is Proxima Centauri REALLY the closest star, or will we find one even closer?

比邻星真的是离我们最近的恒星吗，或者我们会找到更近距离的恒星吗？

That and the fact that its orbit lies in Proxima Centauri's habitable zone.

况且由于比邻星 B 在比邻星的宜居带运行。

It takes stars like Proxima Centauri much longer to burn through all of their hydrogen supply.

所以比邻星要过更久，才会耗尽它所有氢供应。

The nearest star to the sun we know of, Proxima Centauri, is about 4.2 light years away.

据我们所知，距离太阳最近的恒星是比邻星(Proxima Centauri)，距离我们大约4.2光年。

As well as a planet called Proxima b, orbiting Proxima Centauri, a mere 4.2 light-years from us.

同时，他们还发现了围绕半人马座比邻星运行的比邻星b，而那里距我们仅有4.2光年。

It orbits a red dwarf star called Proxima Centauri in a system with three stars in it.

它在一个三星系统里围绕着一颗名为比邻星的红矮星运动。

The nearest star to the Sun is a red dwarf called Proxima Centauri, which orbits the binary star Alpha Centauri.

距离太阳最近的恒星是一颗被称为比邻星的红矮星，它围绕着半人马座阿尔法双星运行。

Klein wrote on Twitter that the object was a Webb-captured image of Proxima Centauri, the nearest star to the sun.

克莱恩在推特上写道，该天体是韦伯拍摄的半人马座比邻星的图像——比邻星是距离太阳最近的恒星。

Proxima Centauri is a red dwarf much cooler than our sun so you've gotta be really close to stay warm.

比邻星属于红矮星，比我们的太阳温度低很多，所以你必须离得很近才能保暖。

While there we'll visit the Proxima-Centauri B planet, which has a good chance of housing alien life.

当我们在那里时，会到访比邻星 B 行星，那里很有可能存在外星生命。

Because the red dwarf Proxima Centauri is so much smaller than our yellow dwarf Sun, it burns at a lower temperature.

因为红矮星比邻星远，比我们的黄矮星太阳小，它以较低的温度燃烧。

Because of that, Proxima Centauri has a lifetime of trillions of years, while our Sun has a 10-billion-year expiration term.

因此，太阳只有 100 亿年寿命，而比邻星则有数万亿年的寿命。

After the Sun, the star closest to our solar system is Proxima Centauri, it is located 4.3 light-years from our planet.

继太阳之后，离我们太阳系最近的恒星是比邻星，它距离地球4.3光年。

All the way until four trillion years from now, the closest star to earth named Proxima Centauri B will have survived.

直到四万亿年后，离地球最近的恒星——半人马座比邻星B将会存活下来。

The nearest other star to our Sun Proxima Centauri is 4.24 light-years away from the earth.

离我们太阳最近的另一颗恒星，比邻星，距离地球有 4.24 光年。

Once all 1,000 ships are on their way, they should be able to reach Proxima Centauri in about 20 years.

一旦1000艘飞船全部入轨，他们应该能够在大约20年内到达比邻星。