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.

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。

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Paradoxically, while the temperatures required for liquid water exist only in the inner solar system, the key building blocks of life, including water itself, occur primarily beyond the asteroid belt.

矛盾的是，虽然液态水所需的温度只存在于太阳系内部，但生命的关键组成部分，包括水本身，却主要存在于小行星带之外。

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Like a frozen asteroid belt, it's littered with chunks of ice and frozen methane and ammonia.

象一个冰冻的小行星带一样，它的上面布满冰柱及凝固的甲烷及氨。

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The American space agency's Dawn spacecraft began circling Vesta, a member of the asteroid belt that orbits the sun.

VOA: special.2011.07.27

"We will use the tremendous capabilities of this ion propulsion system to climb out of orbit around Vesta, travel for almost another three years through the asteroid belt to dwarf planet Ceres and then go into orbit around Ceres and undertake the same kind of measurements there that we'll be doing at Vesta.

VOA: special.2011.07.27

Early on, Moskovitz says the entire solar system probably resembled one giant asteroid belt.

FORBES: Main Asteroid Belt No Remnant Of Exploded Planet

Vesta and Ceres are the two most massive objects in the main asteroid belt.

CNN: While you were working: An asteroid just flew by

One scientist said it could have been a "random small piece of rock, probably from the asteroid belt".

BBC: Meteor spotted in night sky in England and Wales