"I think all of us really believe that rocky planets, like Earth, are going to be found at some point," said Baross.

巴诺斯博士表示：“像地球这样的岩质行星迟早会被发现，我认为所有人都对此深信不疑。”

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Earth's orbit is not a perfect circle, but is rather an oval-shaped ellipse, like that of the orbits of all the other planets.

地球轨道不是完美的圆形，而是像其它行星的轨道一样，呈椭圆形。

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Yes. All the people travel by spaceship in the movie, and they can visit planets like Mars.

是的。在电影里所有的人都乘宇宙飞船旅行，他们还能访问像火星一样的星球。

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This raises the possibility that planets like ours orbiting in habitable zones could be covered in oceans - providing all the key constituents required for life.

BBC: NEWS | Science/Nature | Earth-like planets may be common

Like phone books, we used to have immutable facts all compiled in Encyclopedia Britannica: 9 planets in our solar system, the Soviet Union, and avoid alcohol.

FORBES: When facts change fast, what should our kids be learning?

Small, rocky planets are the hardest of all to detect, but they are also the ones astrobiologists would most like to find.

ECONOMIST: A roadmap for planet-hunting