太阳一类的恒星在其核心将氢聚变成氦。
Stars like our sun fuse hydrogen in their cores into helium.
从12月到3月，太阳一直不会升起。
后来提出的另一个解决方案是，也许早期的太阳一点也不暗，也许它很亮。
Another solution, which is proposed much later, was that perhaps the young Sun wasn't faint at all, perhaps it was bright.
比如说，我们怎么知道恒星真的是像太阳一样巨大的火球，而且离我们很远呢？
How do we know, for example, that the stars are really huge balls of fire like the Sun and very far away?
但是它仍然与我们相似，因为它应该也与它的同伴交流，对宇宙感兴趣，生活在一个行星上，这个行星也绕着像是太阳一样的恒星运转。
It will nevertheless resemble us in that it should communicate with its fellows, be interested in the Universe, live on a planet orbiting a star like our Sun.
太阳一升起来，你就会看到水汽从地面和树林中蒸腾起来。
As soon as the sun rises, you see wisps of condensation rising from the ground and trees.
太阳一升，纳米比亚的雾气迅速消散，因此甲虫仅有一点儿时间集水。
The Namibian mist rapidly dissipates once the sun rises, so the beetle has just a brief opportunity to collect water.
称母亲为“kakasama”，意思是像太阳一亲明亮地燃烧着的人。
And a mother is sometimes called, kakasama, referring to someone who shines brightly like the Sun.
太阳从云层里露了一下脸。
我无论什么时候都用防晒霜，哪怕是有一点点晒到太阳的可能。
I use sunscreen whenever there is even a remote possibility that I will be in the sun.
当彗星更接近太阳时，一股单独的风将云朵吹到彗星后面，它的尾巴就是这样形成的。
As the comet gets even nearer to the sun, a solo wind blows the cloud behind the comet, thus forming its tail.
在任何一年中，大约有十几颗已知的彗星在其轨道中接近太阳。当然，一般人看不到所有的彗星。
In any given year, about a dozen known comets come close to the sun in their orbits, the average person can't see them all, of course.
太空船使得科学家可以研究太阳系中一些不为人知的角落。
The spacecraft will enable scientists to study some dark corners of the solar system.
这是119颗太阳系外行星中的一颗。这些行星围绕除太阳外的其他星体运行。
The planet is one of 119 known extra-solar planets, objects that orbit stars other than the sun.
这是第一次，我这样一个皮肤白皙、有雀斑的人，顶着太阳航海而没有晒伤。
It's the first time I, a fair-skinned, freckly type, have sailed in the sun without burning.
要是没有太阳的辐射热，地球将会是一个冰冻的球体。
The earth would be a frozen ball if it were not for the radiant heat of the sun.
他提出了一个描述各行星与太阳之间距离的数学公式。
He developed a mathematical formula describing the distances of the planets from the Sun.
太阳、月亮和这些星球形成于倒塌进一个旋转盘状物的一团巨大旋转汽云。
The Sun, Moon, and the planets formed from a huge spinning gas cloud that collapsed into a gyrating disc.
一种防护系数为30的防晒霜使你能够待在太阳底下而不被晒伤。
A sunscreen with a protection factor of 30 allows you to stay in the sun without burning.
有几年它的亮度一度达到了现在的太阳亮度的一万倍左右。
For a few years its luminosity flared up to about 10,000 times the present-day luminosity of the Sun.
他们开发了一种太阳能飞机。
也许每个家庭都将有一个太阳能发电机来提供照明和取暖的电力。
Perhaps each home will have a solar generator to provide power for lighting and heating.
事实上，在太阳风——一股不断从太阳上吹落的带电粒子流——的影响下，太阳的质量一直在下降。
Actually, the Sun is constantly losing mass through the solar wind, a stream of charged particles constantly blowing off the Sun.
所以他根据事实推断，认为太阳中有一种元素在地球上还没有被发现。
So he put two and two together, and decided there was an element in the sun that hadn't been discovered here on the earth yet.
当彗星接近太阳时，其中的一些气体开始解冻。
As a comet gets closer to the sun, some gases in it begin to unfreeze.
时不时地，这些“脏雪球”会像行星一样绕着太阳公转。
Now and then these "dirty snow balls" begin to orbit the sun just as the planets do.
现在，先去清洗一下，因为太阳公公看到你这么脏，会笑你的。
Go now, and wash yourself first, for the sun will laugh at you if he sees how dirty you are.
我们得到了一束太阳光的光谱，它看起来像是颜色在互相渗透。
So we've got a spectrum of a beam of sunlight and it looks like the colors bleed into each other.
海蒂翻着书，发现了一首关于太阳的歌，于是她决定大声读出来。
Turning the pages, Heidi found a song about the sun, and decided to read that aloud.
另一方面，《太阳报》一片贫瘠，除了小小的消遣之外，没有什么可提供的；如今几乎没有人会管它叫报纸。
On the other hand, the Sun was a scanty sheet providing little more than minor diversions; few today would call it a newspaper at all.
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