But Saturn's fellow gas giant planet Jupiter has four big moons.

而和土星同样是巨大气质行星的木星却有4颗大卫星。

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Tyche is the nickname given to a hypothesized gas giant planet located in the Solar System's Oort cloud.

幸神星是太阳系奥尔特云内的一颗假设的气态巨行星的昵称。

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As one example, a gas giant planet called HD 209458b has been found to contain oxygen, carbon and water.

举个例子，人们发现一颗被称为HD 209458b的巨大的气体行星含有氧、碳和水。

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About one-fifth of them are home to a gas giant like Jupiter or a still more massive planet.

WSJ: Galaxy Hosts 100 Billion Planets, in New Estimate

On the plus side, the ability to directly detect light from a planet closer to the size of Earth than a Jupiter-sized gas giant is a positive step forward in our ability to learn more about planets that might be habitable.

FORBES: NASA Detects The Light Of A 'Super-Earth'

Professor Roxburgh told BBC News there appeared to be another planet orbiting the same "sun" - a Neptune-sized gas giant.

BBC: Telescope sees smallest exoplanet