实际情况是，冰川底部的冰承受着巨大的压力——这些压力来自于覆盖在上面的冰的重量。
What happens is that the ice at the base of the glacier is under a great deal of pressure—the pressure coming from the weight of the overlying ice.
在这里，水可能以冰的形式储存数百年甚至数十万年，然后再以融水的形式释放到液态水系统中。
Here water may be stored in ice form for hundreds or even hundreds of thousands of years before being released again into the liquid water system as meltwater.
他很有说服力地指出，直到很久以后，当大陆上的冰开始最后消退时，才有了这样一条没有冰的走廊。
He persuasively argued that such an ice-free corridor did not exist until much later, when the continental ice began its final retreat.
这就是为什么我们很难准确预测最早什么时候能看到无冰的北极。
That's what makes it so difficult to predict exactly how rapidly we might see the Arctic go ice-free.
很少有人会反对，本世纪的某一时间，北冰洋将存在完全无冰的夏季。
Few now disagree that, at some point this century, the Arctic will start to see ice-free summers.
在火星上存在冰这并不足以令人惊讶，令人惊讶的是冰的纯度之高和埋藏冰原的范围之广。
The presence of ice on Mars is not a surprise, although the purity and extent of the buried ice sheets is.
例如，北极熊越来越有灭绝的危险，因为冰的消失迫使它们游越来越远的距离去捕捉其主要猎物海豹。
Polar bears, for example, are becoming endangered, as the disappearance of ice obliges them to swim farther and farther to catch seals, their main prey.
然而，现在这些流入该地区的常年厚冰却开始融化，这可能会进一步消耗北极剩余常年厚冰的储存量。
However, the old, thick ice that moved into this region is now beginning to melt out, which could further deplete the Arctic's remaining store of old, thick ice.
这里的关键因素是液态水的供应，虽然南极洲拥有地球大部分淡水，但其中大部分以冰的形式被锁起来。
The key here is the availability of liquid water: Despite the fact that Antarctica is home to most of the Earth's fresh water, most of it is locked up in ice.
这张照片展示了某个极地陨坑，陨坑中还保存着一些夏季冰的痕迹，在风的作用下形成了一些美丽的沙丘。
This image shows part of a polar crater that still holds on to some summer ice, as well as beautiful sand dunes sculpted by the wind.
在昨晚刚结束的男子吊环决赛中，奥运世锦赛冠军、吊环王子陈一冰的这套经典吊环动作近乎大师级完美。
Reigning Olympic and world champion Chen Yibing of China turned in a masterful performance for the gold on rings Tuesday night.
7亿年前地球上还没有植物，浑浊的冰（泥土和冰的混合物）可能是地球表面唯一能够吸收阳光的黑色物质。
Since plants had not yet evolved 700 million years ago, the dirty ice could have been the only dark spots on Earth's surface to absorb the sun's rays.
有理论认为地球上的水可能是由其它小行星以冰的形态运送而来，如今的这一发现为该理论提供了有力佐证。
The find provides support for the theory that Earth's water could have been delivered as ice by an asteroid.
我们的这些数据将帮助科学家们更好地理解北极冰川总量的消融速度有多快，以及我们将在多久之后就会在夏天看到一个无冰的北极。
Our data will help scientists better understand how fast the volume of Arctic ice is decreasing and how soon we might see a nearly ice-free Arctic in summer.
盐分会使得水凝结成冰的温度降低，这也就意味着，尽管在火星上所谓“温暖”的时期里气温也低得吓人，但在这个星球的中纬度地区，可能有含盐的液态水季节性的存在。
Saltiness lowers the temperature at which water freezes. This means seasonal salty liquid water could exist in mid-latitude regions of Mars, despite the chilliness of the planet's ‘warm’ season.
盐分会使得水凝结成冰的温度降低，这也就意味着，尽管在火星上所谓“温暖”的时期里气温也低得吓人，但在这个星球的中纬度地区，可能有含盐的液态水季节性的存在。
Saltiness lowers the temperature at which water freezes. This means seasonal salty liquid water could exist in mid-latitude regions of Mars, despite the chilliness of the planet's 'warm' season.
“我把冥王星与其他柯伊伯带冰态天体归为一类，”纽约海登天文馆的负责人Neil deGrasse Tyson说，“我认为它在那更合适，真的。
"I group Pluto with the other icy bodies in the Kuiper Belt," said Neil deGrasse Tyson, director of New York City's Hayden Planetarium. "I think it's happier there, actually.
随着时间的推移，压力的增加，再加上从上方重新冻结的融水，小冰原颗粒成为相互锁结的大晶体蓝色冰川冰。
With additional time, pressure, and refrozen meltwater from above, the small firn granules become larger, interlocked crystals of blue glacial ice.
哈勃对邻近恒星的观察显示，它们许多都有类似柯伊伯带一样的冰态碎块组成的圆盘环绕。
Hubble observations of nearby stars show that a number of them have Kuiper Belt-like disks of icy debris encircling them.
大部分飞入内太阳系的彗星似乎都来自奥特云的外部区域——奥特云是自太阳系诞生以来剩余的冰尘与残骸形成的区域。
Most comets that fly into the inner solar system seem to come from the outer region of the Oort cloud - a region of icy dust and debris left over from the birth of the solar system.
然而，有爱的心中，从无寒冬霜冰，只有夏之温热。
But the hearts that love will know, never winter's frost and chill, summer's warmth is in them still.
在极昼时期，巨大的冰穹24小时不停地将阳光反射回太空。
That great dome of ice reflects sunlight back into space throughout the 24 hours a day of polar summer sunshine.
它们的生存条件就是雪和冰——改变这些条件，相当于拿走了它们的栖息地和食物。
They're built for the snow and ice - change those conditions, and you take away their habitat and their food supply.
不管是加冰、直接喝、还是混在鸡尾酒里面，伏特加有着“派对血液”的美名。
Whether on the rocks, straight up or mixed in with your favorite cocktail, vodka has a reputation for being the life of the party.
研究人员称，这一项目是为将来人类长时间呆在太空所做的很多准备之一，也许以后宇航员在太空行走后能来杯冰啤酒。
Researchers said the project was part of efforts to prepare for a future in which humans spend extended periods of time in space — and might like a cold beer after a space walk.
这颗行星可能拥有一个“热冰”的表面，由于受到行星引力的压缩，水虽然受热但依然保持固态。
It might have a surface of "hot ice" - water that remains solid despite its heat because it gets compressed by the planet's gravity.
这颗行星可能拥有一个“热冰”的表面，由于受到行星引力的压缩，水虽然受热但依然保持固态。
It might have a surface of "hot ice" - water that remains solid despite its heat because it gets compressed by the planet's gravity.
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