Far from the sun, in the outer solar system, beyond Jupiter's orbit, temperatures are low enough to permit ices to form out of water and out of gases like methane and carbon dioxide.
在远离太阳的外太阳系，在木星轨道之外，温度低到足以使冰从水以及甲烷和二氧化碳等气体中形成。
Pluto has family in the outer solar system.
冥王星在太阳系外宇宙有着它自己的家族。
There's probably no intelligent life in the outer solar system.
也许在外太阳系根本没有智慧生命的存在。
There's probably no intelligent life in the outer solar system. But it couldn't hurt to check.
也许在外太阳系根本没有智慧生命的存在。不过探索一下总归无妨。
Because the rings are almost pure water ice-and material in the outer solar system is generally an ice-rock mix.
因为土星环几乎纯粹由水冰构成-而外太阳系的物质构成通常是冰岩混合物。
WISE needs to scan the sky twice in order to generate the time-lapsed images astronomers use to detect objects in the outer solar system.
广角红外线探测望远镜需要扫描天域2遍以便生成时间释放图像，天文学家将用这些图像侦测外太阳系的天体。
Notice that just prior to the point at which she states "there is nothing hazardous in the outer solar system, " she makes a very long eye blink.
注意到就在她声称“在外太阳系并没有任何威胁”时，她做了一个很长的眨眼。
Eris is real, but it is a dwarf planet similar to Pluto that will remain in the outer solar system; the closest it can come to Earth is about 4 billion miles.
行星厄里斯是真的，但它是一个和冥王星类似的矮行星，将继续待在太阳系外围；它最接近地球的位置有大约40亿英里。
In the solar system, the theories say that this is large asteroid to lunar size in the inner solar system, and one to fifteen times the Earth's size in the outer solar system.
理论上，在太阳系的内太阳系(innersolar system)中存在一个和月亮一样大的小行星，在外太阳系(outer solar system)还有个15倍地球大小的小行星。
Now that Pluto may have regained its status as the largest object in the outer solar system, should astronomers consider giving it back another former title - that of full-fledged planet?
既然冥王星已能重新扳回太阳系以外宇宙中的老大地位，那么天文学家应不应该把另一个名号——一颗毫无问题的行星，也还给它呢？
Colossal impacts in the outer reaches of the solar system may have bowled over remote, frozen moons, leading to vast cracks across their surfaces, research now suggests.
研究现在认为，太阳系外围的巨大碰撞可能击倒了遥远的冷冻的卫星，导致月球表面的巨大裂缝。
Mars is the fourth rock from the sun and our outer neighbour in the solar system.
火星是太阳外第四个星球，我们在太阳系中的好邻居。
IN the summer of 1977 two American spacecraft were launched on what is arguably the grandest mission ever: the exploration of the outer planets of the solar system and the space that lies beyond.
1977年的夏天，两位美国飞行员被选中投身于可以说是有史以来最伟大的使命：对太阳系及更远空间的外太空探索。
In fact, if Betelgeuse replaced the sun in our solar system, its outer layers would extend past Earth and Mars and to nearly the orbit of Jupiter.
实际上，如果让参宿四来代替我们太阳系的太阳，它的外层将会延伸超过地球和火星，并且几乎接近于木星的轨道。
Astronomers won't have to wait that long to firm up their understanding of the outer solar system, though: Sicardy and his team already have occultations in hand from other Kuiper Belt objects.
但天文学家们不必等那久来证实他们对太阳系外层的理解。斯卡德和他的团队已经掌握了其它柯伊伯带星体的掩星。
In the outer parts of the solar system, the sun's rays are too feeble to provide energy for spacecraft's instruments.
在太阳系的外层空间，太阳光线太弱，无法为宇宙飞船的仪器提供能量。
A telescope would have to be as far away as the planet Jupiter to look for life in outer space, because the dust becomes thinner the further we travel towards the outer edges of our own solar system.
望远镜要放置在木星那样遥远的行星上才有可能在外层空间搜寻生命。因为我们越是接近太阳系的边缘，尘埃就越稀薄。
Comets are rich in volatile material. It suggests that comets should form and keep for a long time in the low temperature region of the outer solar system.
彗星富含挥发物，这表明它们形成并长期保存于太阳系外部低温区。
Still operational, both Voyagers are headed towards the outer boundary of the solar system, in search of the heliopause and the beginning of interstellar space.
目前二艘航行家太空船仍然持续运转，并努力地往太阳系的边界移动，探寻太阳风层的顶部和星际空间的起点。
Still operational, both Voyagers are headed towards the outer boundary of the solar system, in search of the heliopause and the beginning of interstellar space.
目前二艘航行家太空船仍然持续运转，并努力地往太阳系的边界移动，探寻太阳风层的顶部和星际空间的起点。
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