建造冰天的目的是阻挡地球受到太阳射线和其他穿越太阳系的危险的宇宙射线。
This was done to protect planet Earth from the radiation of the Sun and other dangerous cosmic radiation that regularly come through the solar system.
奥尔特云是一个由粉尘和冰组成的庞大云带，据信它距离太阳约一光年，许多穿越我们太阳系的彗星都来自那里。
The Oort cloud is a vast belt of dust and ice that is believed to lie around one light year from the Sun and is the origin of many of the comets that pass through our solar system.
机遇号和她的同胞机器人勇气号自从2004年初就开始探索这颗红色的星球了，找到了古老的水的证据，并且穿越内太阳系发送除了令人窒息的图片。
Opportunity and sister robot Spirit have been probing the red planet since early 2004, finding evidence of ancient water, and sending breathtaking images across the inner Solar System.
如今的天文学者可以穿越时空，观测到太阳系外的星球，能够追溯到宇宙的起源。
Our astronomers now observe planets round alien SUNS and peer across vast chasms of space and time, back to the beginning of the universe itself.
这取决于几个因素，包括（从地球附近经过的运动轨迹类似于彗星的太阳系第十二行星所携带的）红色尘埃用多少时间穿越地球大气层沉淀到它被第一次近距离观察并报告的地方。
This depends upon a number of factors, including how well the dust drops through the atmosphere to be deposited on land where the very first evidence will be closely watched for and thus observed.
凯西称，每个太阳系就像一个有许多东西可学和我们必须穿越的多维宇宙。
Cayce stated that each solar system is like a university with many dimensions of learning available and through which we must travel through.
奥尔特云是一个由粉尘和冰组成的庞大云带，据信它距离太阳约一光年，许多穿越我们太阳系的彗星都来自那里。
Thee Oort cloud is a vast belt of dust and ice that is believed to lie around one light year from the Sun and is the origin of many of the comets that pass through our solar system.
《宇宙连环画》中变来变去的主人公Qfwfq巧妙的穿越时间，空间，太阳系和地质年代，在这些新的故事中又以崭新的面目出现。
Qfwfq, the protean hero of Cosmicomics dexterously moving through time and space, solar systems and geological eras, takes on a new dimension in these tales.
一张足够大的帆，通过经年累月的积累，可以达到数十万英里的时速，足以在5年内穿越整个太阳系。
Over days and years a big enough sail, say a mile on a side, could reach speeds of hundreds of thousands of miles an hour, fast enough to traverse the solar system in 5 years.
一张足够大的帆，通过经年累月的积累，可以达到数十万英里的时速，足以在5年内穿越整个太阳系。
Over days and years a big enough sail, say a mile on a side, could reach speeds of hundreds of thousands of miles an hour, fast enough to traverse the solar system in 5 years.
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