Pluto is mainly made up of rock and ice.

冥王星主要由岩石和冰组成。

Pluto and its satellite systems are far more complex than astronomers had expected.

冥王星及其卫星系统的复杂性大大超出了天文学家之前的预测。

Hades is the Pluto of ancient Greek mythology.

哈迪斯是古希腊神话中的冥王。

The space telescope has taken the clearest pictures ever of Pluto.

太空望远镜拍下了有史以来最清晰的冥王星的照片。

Astronomers know that Pluto and Triton have nearly the same size, mass, and density.

天文学家们知道冥王星和海王卫一拥有几乎相同的体积、质量和密度。

The next breath you take could have come from beyond Pluto.

你吸入的下一口空气有可能来自比冥王星更遥远的地方。

Pluto may be a dwarf planet now, Clyde baby, but you're still the first American to discover a planet in my book.

现在，冥王星可能是个矮行星，但是，亲爱的克莱德，在我书中你仍然是第一个发现行星的美国人。

This transformed our view not only of the solar system but also of the importance of sending a spacecraft to Pluto.

这不仅改变了我们对太阳系的认识，也使我们意识到向冥王星发射飞船的重要性。