穿过小行星带继续前进，我们进入了气体巨行星区域：木星、土星、天王星、海王星，所有这些都使地球看起来像个侏儒。
Moving on through the asteroid belt we enter the realms of the gas giant planets: Jupiter, Saturn, Uranus, and Neptune, all of which dwarf the Earth.
它们是迄今为止科学家探测到的最大、最遥远的物体：一条巨大的宇宙云带，距离地球约150亿光年。
They were, by far, the largest and most distant objects that scientists had ever detected: a strip of enormous cosmic clouds some 15 billion light-years from earth.
环太平洋地地震带是地球上地质活动最频繁的地区。
The Pacific Ring of Fire is the most geologically active region of Earth.
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