If spaceships that can fly faster than the speed of light were built, a day on board would be equivalent to a year on Earth.

如果太空飞船的速度能超过光速，船上的一天将相当于地球上的一年。

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This New year I will make a difference in saving the earth. This year I will contemplate on what is green and how I can make a smaller carbon footprint.

每年这时候，人们立下新年的决心，这个新年我将要在拯救地球方面有所作为，这一年我将琢磨绿色环保是什么，以及我如何能够造成一个更小的碳足迹。

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The space shuttle Atlantis is on its way back to earth from the International space Station on its last voyage after a 25-year career.

经过25年的职业生涯之后，亚特兰蒂斯后航天飞机正在从国际空间站返回地球，这是其最后一次航行。

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In May, a thirteen-year-old American boy became the youngest person to climb the tallest mountain on Earth.

VOA: special.2010.06.30

The "Defiance" world is set in the year 2046 on a transformed Earth ravaged by conflict and alien attacks.

CNN: 'Defiance' merges TV, video-gaming worlds

According to a report focused on rare earth elements performance for the upcoming year from A.L. Waters Capital, the firm highlighted some specific rare earths and their current prices compared to their peak prices.

FORBES: 2012 Outlook: Uncertainty Continues For Rare Earths Prices, China Still Major Player

True, a year on this planet lasts just two Earth days, but NASA's Jack Lissauer says the planet feels quite a bit like home.

NPR: Astronomers Find Planet with Similarities to Earth