What they do: Astronomers use their physics and math skills to study the universe and its origin, which includes galaxies, solar systems and the planets within.
他们的工作：天文学家利用他们在物理学和数学方面的能力来研究宇宙和它的起源，包括银河第、太阳系以及其中的行星。
An estimated 99.85 percent of the mass of our solar system is contained within the Sun, while the planets collectively make up most of the remaining 0.15 percent.
太阳占据了太阳系总质量的大约99.85%，而在剩余的0.15%中，行星占据了大部分。
Swarms of giant chunks of debris form within the disc, collide and merge - forming the Earth, moon and other planets.
这些巨大的碎石不断的挤压碰撞合并，最后形成了地球、月亮和其它行星。
Other more complex issues regarding where the moon falls in relation to the planets, and within the zodiac, can also come in to play.
其它一些更为复杂的争议则围绕着月球与行星以及黄道带之间的关系而展开。即便是最明辨是非的美食家也会认为这不过是在赶时髦。
We could have a base on the moon within 30 years, reach Mars in 50 years, and explore the moons of the outer planets in 200 years.
我们可以在三十年内建立在月基地，五十年后到达火星，200年后探索外行星的卫星。
It is quite possible that, within our lifetimes, atmospheric studies of these extrasolar planets will provide the first evidence of biological life beyond Earth.
在我们的有生之年，对于这些外太阳系行星大气层的研究，很有可能提供地球外存在生命的首个证据。
The unusual bacterium was found deep within a Greenland ice sheet and scientists believe it holds clues to how life might survive on other planets.
这不同寻常的细菌是在格陵兰冰原深处找到的，科学家们相信其中蕴含着生命如何在其它星球上生存的线索。
Lockheed's plan involves using the combined gravity of the Earth and the Moon to ensure that its craft hovers on the same spot, within sight of both planets.
洛克希德公司的计划中包括利用地球和月球引力相结合，以保证两个星球看到的飞行器是在同一个点上。
In fact, two of the 56 stars within 15 light-years are already known to have planets.
实际上，在15光年内的56颗恒星中有两颗已经确知带有行星了。
Other particles within the disk collided and stuck together to form asteroid-sized objects named as planetesimals, some of which combined to become the asteroids, comets, moons and planets.
其它在盘状星云中的物质相互碰撞合并，形成小行星尺寸的星体，称为“星子”，一些星子相互结合，形成小行星、彗星、卫星和行星。
"Life exists on other planets and we will find it within 20 years," the scientist Andrei Finkelstein said, according to the Interfax News Agency.
国际文传通讯社报道，“有生命生活在别的星球上，20年内我们一定能够找到它们的所在，”科学家AndreiFinkelstein说。
One of the several planets within the Gliese 581 star system, called Gliese 581 d, may be one of the most potentially habitable alien worlds known.
一颗在格利泽581恒星系统内的叫做格利泽581d行星，可能是已知的最适于居住的外行星。
And they expect to be able to identify around 60 of these habitable Earth-like planets within the next two years.
他们希望在今后的2年里确定出大约60多个像地球一样适宜人类居住的行星。
About every 15 years the two planets will form mutual aspects by solar arc within a year of each other.
大约每过15年，这两颗行星会在年度内太阳弧推运中相互间形成相位。
They argued that, as on Earth, a great deal of water will be locked up within such planets' mantles, forced there by the very gravity that others worry will drown their surfaces.
他们争辩道，就像在地球上，大量的谁会被锁在行星的地幔中，由重力所导致，而其他人担心同样是这个重力会导致水淹地表。
Planetary alignment within your solar system has considerable effects on behavior and attitudes, especially when the juxtaposition of the planets and sol is ripe for energy surges.
在你们太阳系统的行星校准已经在人类行为和看法上造成相当大的影响，特别当行星并列的时候，太阳为能量大潮做好了准备。
It sounds very far-fetched, but a Russian scientist claims there is a possibility that colonies of aliens may be living on planets within certain black holes, the Times of India reported.
据《印度时报》报道，一位俄罗斯科学家称，虽然听起来不可思议，但某些黑洞中的星球上可能生活着外星人。
In 2007, scientists discovered the first two Earth-like planets outside our solar system that appear to be located near or within their star's habitable zone.
2007年，科学家们在太阳系以外首次发现两颗类似地球，可能位于适居带附近的行星，而之前发现的行星更类似于木星。
The exploration of the planets and their satellites within the solar system is one of the important fields in space science and aerospace technology.
探测太阳系的行星及其卫星是空间科学和航天技术的重要领域之一。
The genesis of life is as inevitable as the formation of atoms... life exists on other planets and we will find it within 20 years.
生命起源犹如原子的形成一样不可避免……其他星球上也存在生命，我们会在20年内找到它。
The genesis of life is as inevitable as the formation of atoms... life exists on other planets and we will find it within 20 years.
生命起源犹如原子的形成一样不可避免……其他星球上也存在生命，我们会在20年内找到它。
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