Other planets in our solar system lack the oxygen atmosphere that helps explain why life exists on Earth.

我们太阳系的其他行星缺乏氧气大气层，这有助于解释为什么地球上存在生命。

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'The Gliese system is particularly exciting to us as it's very close to Earth, relatively speaking. So with future generations of telescopes, we'll be able to search for life on Gliese 581d directly.

格利泽的系统尤为使我们感到兴奋，因为它距离地球很近，在将来利用天文望远镜，我们或许就能直接关发到这个星球上是否有生命的存在。

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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。

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In that case, he calculates, the chance of life having crossed to the earth from another solar system, or vice versa, is about 1%.

ECONOMIST: Panspermia: Interplanetary migration | The

An even more intriguing question and the one that the original theory of panspermia tried to address is whether life might have arrived on earth from another solar system.

ECONOMIST: Panspermia: Interplanetary migration | The

Abell says these fragments may also provide planetary scientists with new windows onto details about how the solar system formed and how life evolved here on Earth.

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