One day, a little boy was walking on the planet.
有一天，一个小男孩在这个星球上行走。
Maybe the story is telling us if we don't look after the planet, a day will come when flowers can only grow on the moon.
也许这个故事告诉我们，如果我们不爱护这个星球，总有一天，花就只能在月球上生长。
One day, a little boy Jim was walking on the planet, when he passed a cave and noticed a small red flower inside.
一天，一个小男孩吉姆在这个星球上行走，当他经过一个洞穴时，他注意到里面有一朵小红花。
We have an opera going on there, 24 hours a day, right off the greatest city in the planet.
就在这个天下最棒的城市旁边，一天到晚24小时不停，都可以听到它们唱大戏！
But after 45 minutes of daylight, a dark line appears on the planet, dividing Earth into night and day.
但在45分钟的日光照射之后，一道黑暗线就出现在地球上了，它将地球分割为白天和黑夜两个地区。
Traveling on a nearly circular, 229-day orbit around both host stars, the planet lies outside the system's habitable zone—the region where liquid water, and thus life as we know it, could exist.
它的运行轨道为近似的圆形，以229天为周期，围绕着两个恒星作轨道运行，这个行星位于这个系统的可居住区之外——所谓可居住区，那里有液体水，正像我们所知道的那样，那里可能会有生命的存在。
Break out the flashlights. When a full lunar eclipse takes place on the shortest day of the year, the planet may just get awfully dark.
拿出手电筒吧。当一年里最短的一天发生月全食，地球可能会变得一片漆黑。
When a full lunar eclipse takes place on the shortest day of the year, the planet may just get awfully dark.
当一年里最短的一天发生月全食，地球可能会变得一片漆黑。
The Spirit and Opportunity rovers landed on the Red Planet in January 2004 for what was to be a 90-day mission, but which has lasted 6 Earth years, or 3.2 Mars years.
勇气号与机遇号探测器在2004年1月登上这红色星球，计划执行一项为期90天的任务，结果这任务持续了地球历6年，或者说3.2个火星年。
If every person on the planet simultaneously made 200, 000 phone calls, there would be the same total number of connections as in a single human brain in a day.
如果地球上每个人同时打200 000个电话，这样的通讯连接总数会和一个人的大脑在一天内发生的相当。
From 3 June, the Mars 500 project will send a "crew" of six on a simulated 520-day round trip to the Red Planet and back.
从6月3日起，火星500计划将派遣6名“船员”进行一场环游红色星球并返回的520天模拟旅行。
I'll keep my home base right there near the Dial-a-Style, so I can remember every day why I'm on this planet.
我会在‘呼叫美丽’安家，所以我会记住我在这世界上的每一天的。
You never want to schedule anything too close to the day a planet turns retrograde or even on the days when it turns direct.
你千万不要在一个行星正行或逆行的那天做什么计划。
Now when they're on the space station, they're circling the planet every 90 minutes. So they've gone from a 24 hour day to a 90mints day.
但现在他们是在空间站，那里每90分钟绕地球一圈，所以他们一天时间不再是24小时而是90分钟。
The "flight" includes a 250-day "outward trip, " a 30-day "stay on the planet, " and a 240-day "return flight.
这项试验将用250天模拟飞往火星，30天模拟驻留火星，240天模拟返回地球。
Detecting organic compounds that can be a by-product of life processes on an Earth-like body could one day "provide the first evidence of life beyond our planet," NASA said in a statement.
探测有机化合物作为研究一个类地球星体的生命过程的副产品，或许有一天将“首次为我们星球之外存在生命体提供依据。”美国航天局在一份声明中说。
Detecting organic compounds that can be a by-product of life processes on an Earth-like body could one day "provide the first evidence of life beyond our planet," NASA said in a statement.
探测有机化合物作为研究一个类地球星体的生命过程的副产品，或许有一天将“首次为我们星球之外存在生命体提供依据。”美国航天局在一份声明中说。
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