Assume for a moment that you are going to be leaving earth on a spaceship, never to return.

现在假设你即将乘坐太空飞船离开地球，永远不回来了。

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It's one of the brightest and biggest stars in our galactic neighborhood - if you dropped it in our Solar System, it would extend all the way out to Jupiter, leaving Earth completely engulfed.

它是之一的最亮和最大的星星在银河系-如果你把它扔在我们的太阳系中它将延伸所有出路到木星，离开地球完全包围。

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After leaving the earth last summer, Zhu Rong circled Mars for several months and landed on it in May.

去年夏天离开地球后，祝融号围绕火星飞行了几个月，并于今年5月登陆火星。

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"This valley of history has seen mankind complete its first evolutionary steps into the universe: leaving the planet Earth and going forward into the universe.

VOA: special.2010.04.28

"We are leaving Earth permanently, " he said with zeal.

BBC: Chris Hadfield says Nasa's job is not to 'titillate'

Mr. GLEN FOUNTAIN (Johns Hopkins Applied Physics Lab): Leaving Earth, the New Horizons will be traveling at eight miles per second, and eight hours later, the spacecraft will pass the orbit of the moon.

NPR: NASA Sends Spacecraft to Pluto

Garan, a NASA spaceflyer on his second spaceflight, is the creator of the blog Fragile Oasis, which he launched before leaving Earth as a way to share his experiences (and the experiences of other astronauts) to inspire people to cherish the beauty and wonder of the Earth.

MSN: Earth From Space: An Astronaut's Quest to Protect Our 'Fragile Oasis' - Technology & science - Space - Space.com | NBC News