1·First, a climate conducive to life on Earth depends upon the extraordinarily narrow orbital parameters that define a continuously habitable zone where water can exist in a liquid state.
首先，地球上适宜生命存在的气候取决于极其狭窄的轨道参数，这些参数定义了一个持续可居住的地带，在那里水可以以液态存在。
2·New simulations of extrasolar planetary systems may mean the definition of "habitable" planets needs to be completely overhauled.
针对系外行星系统的最新模拟可能意味着“可居住”行星的定义需彻底颠覆。
3·This newest planet, No. 5, resides in the habitable zone, about 0.8 Earth-sun distances from its star.
最新发现的这颗5号恒星，位于可居住区内，距离它的恒星距离为地-日距离的0.8倍。
4·But the find bolstered astronomers' hopes that dozens of habitable worlds will show up as more and more exoplanets are discovered.
但该发现给天文学家带来希望，随着越来越多太阳系外行星的发现，我们可在其中找到数十个可居住星球。
5·During the centuries of Ottoman-Christendom confrontation, European explorers visited most of the habitable regions of the globe, and nearly all those accessible by sea.
在奥斯曼—基督教世界对峙的数个世纪间，欧洲探险者走遍了全球的大部分人类可居住地区，而且几乎都是通过海路。
1·The habitable zones of the cosmos are vast, it seems, and they may be teeming with life.
宇宙中的宜居地带似乎非常辽阔，宇宙中可能充满了生命。
2·We now know that the planet's orbit is slightly outside of the habitable zone and that, as a result, Gliese 581 c's surface is likely too warm to have liquid water.
我们现在知道这颗行星的轨道超出了宜居带一点，因此，格利泽 581 c 的表面很可能太热而无法存在液态水。
3·Gliese 581g, located around 123trillion miles away, orbits a star at a distance that places it squarely in the habitable - or Goldilocks - zone, Nasa said.
美国宇航局宣称：“位于123百万亿英里之外的，Gliese 581g恰好位于一颗恒星的宜居带量程内。”
4·While some astronomers still think planet d may be habitable if it has a thick atmosphere, others are skeptical.
一些天文学家认为行星d也可宜居因其拥有浓密的大气圈，其他人对此持怀疑态度。
5·Related: "First Truly Habitable Planet Discovered, Experts Say."
相关资料：《专家说，发现了第一个真正的宜居星球》。
1·However, as one planet exists around this star, it is possible that others will be discovered — perhaps in more habitable orbits — as observations continue.
但是，既然恒星周围存在一颗行星，那随着观测的进展，很可能会发现其他的行星——也许位于更适宜居住的轨道上。
2·Although some moons in our own solar system have been flagged as possible havens for extraterrestrial life, none is as plainly habitable as Earth.
虽然我们太阳系内的一些卫星被视为外星生命潜在的庇护所，但却没有任何一颗卫星像地球这么适宜居住。
3·We either cut the population by a significant amount, or we find some secret habitable planet with resources.
我们或许大规模的削减人口，或者我们发现一些秘密的有资源的适宜居住的行星。
4·The more habitable environment, a better quality of life is the human dream in the new century.
更适宜居住的环境，更高质量的生活是人类新世纪的梦想。