It was a fusion nuclear pulse rocket, propelled by thermonuclear bombs detonated inside a small magnetic field.

这是一枚聚变核脉冲火箭，由在小磁场内引爆的热核炸弹推动。

For decades, scientists have been wondering if it's possible to recreate the nuclear fusion happening in the sun here on Earth.

几十年来，科学家们一直在想， 是否有可能在地球上重现发生在太阳中的核聚变。

Could they release enough energy that that would trigger more nuclear fusion that then goes over the entire globe and leaves at a burnt horrible cinder?

它们能否释放出足够的能量来引发更多的核聚变，然后席卷整个地球，变成燃烧的可怕煤渣？

Efforts to achieve controlled nuclear fusion on Earth could provide a near--limitless source of clean energy, minus the harmful byproducts of fossil fuels.

在地球上实现受控核聚变的努力可以提供近乎无限的清洁能源，减去化石燃料的有害副产品。