N a planet that orbits a star in a solar system other than that of Earth (太阳系以外的)外部行星
The exoplanet is a few times the mass of Earth, but it should still be small enough to be rocky rather than a gas giant like Jupiter.
这个系外行星的质量是地球的几倍,但是它足够小,能够由岩石构成,而不是像木星是一团巨大的气体。
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The first habitable exoplanet?
人类发现了第一个宜居外星球?
"Golden Age" of Exoplanet discovery.
发现系外行星的“黄金时代”。
This year, Dr Madhusudhan and colleagues published the first measurements of the exoplanet's radius.
BBC: Oddballs: The strange worlds beyond our Solar System
Nevertheless, exoplanet surveys are providing real data to a field long starved of them.
ECONOMIST: Extra-terrestrial life
P-1 is the second exoplanet that is much bigger and less dense than theory predicts.
ECONOMIST: Planetary science: When a world is born | The
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