不接近地球的情形,这是地球。
Now we take the situation whereby we are not so close to the Earth.
保护的措施应该是尽量的接近地球的自我循环。
Protective measures should be as close to the Earth's self-cycle.
据说光子带是这个时间接近地球的一条激烈活动的光子光带。
The photon belt is reportedly a band of intense photon light that is near Earth at this time.
这构成了“接近地球的最丰富的反质子源”,PAMELA团队说。
This constitutes "the most abundant source of antiprotons near the Earth", say the PAMELA team.
简单的权利主张上受接近地球的小行星(全美教育同盟)的小行星,做一些翻修。
Simply claim squatter’s rights on a Near Earth Asteroid (NEA) asteroid and do some renovation.
这种被称为“近地点”的月球最大程度接近地球的现象每十八年才发生一次。
This phenomenon of extreme proximity, known as' maximal perigee, 'only occurs once every 18 years.
火星被认为是太阳系中自然环境最接近地球的行星,因此越来越为人类所关注。
Mars among planets in the solar system is considered to be the most closest to earth in natural environment, so the human being are more and more concerned for Mars.
至于那颗在地平线上升起的神秘的星星,原来是火星。现在正是火星最接近地球的时间之一。
As to that mysterious star rising above the horizon, it turns out to be the planet Mars which is currently making one of its closest approaches to Earth.
好了,我的目标是,用通常的方式,为你们评价重力势能,不是用一个特殊的,接近地球的案例。
Okay, my goal was to evaluate for you the gravitational potential energy the way that it is defined in general, not in a special case when we are near the Earth.
行星厄里斯是真的,但它是一个和冥王星类似的矮行星,将继续待在太阳系外围;它最接近地球的位置有大约40亿英里。
Eris is real, but it is a dwarf planet similar to Pluto that will remain in the outer solar system; the closest it can come to Earth is about 4 billion miles.
当地球的轨道更接近椭圆时,地球实际上在一年的一部分时间里更接近太阳。
When Earth's orbit is more elliptical, Earth is actually closer to the sun during part of the year.
它们实际上在落在地球上的陨石物质中占了接近总数。
They actually account for almost all of the meteorite material that falls to earth.
即使我们觉得存在进化上接近我们的地外文明,但是地球上绝对没有它们需要的东西。
Even if we consider there might be civilizations closer to us in evolution, there is absolutely nothing on Earth they need.
试想象当月亮接近地球时,潮汐将会上涨直至覆盖海底的岩浆层!
Imagine the tides a moon that close would raise on an Earth awash with oceans of magma!
最接近它的四颗行星是石质的类地行星——水星、金星、地球和火星。
The four planets nearest it are rocky, terrestrial worlds — Mercury, Venus, Earth and Mars.
自1992年以来,绝大多数已发现的行星都与其恒星较为接近,这更像是木星,因此,在这些行星上面很可能不会存在像地球上一样的智慧生命。
Most of the new planets that have been discovered since 1992 tend to be more like Jupiter and closer to their star, so it's highly unlikely that they support intelligent life like that found on Earth.
举例来说,地球2可以在接近北极星的天空中被看到,就是说它的轨道垂直于太阳系黄道,早就准备着被发现了。
For instance, Earth 2 can be seen hanging in the sky near Polaris, the north star, which would put its orbit perpendicular to the solar system’s ecliptic—and ripe for discovery long ago.
举例来说,地球2可以在接近北极星的天空中被看到,就是说它的轨道垂直于太阳系黄道,早就准备着被发现了。
For instance, Earth 2 can be seen hanging in the sky near Polaris, the north star, which would put its orbit perpendicular to the solar system's ecliptic-and ripe for discovery long ago.
圣彼得堡国立大学教授莱尼德·索科洛夫指出,“2029年4月13日时,“阿波菲斯”将以每小时3700到3800公里的时速接近地球。
Professor Leonid Sokolov of the St Petersburg State University told the RiaNovosti website: ‘Apophis will approach Earth at a distance of 37,000-38,000 kilometres (per hour) on April 13, 2029.
NASA的Swift卫星观察到鹿林彗星,这颗彗星于2009年2月最接近地球。
NASA's Swift satellite views Comet Lulin as it made itclosest approach to Earth in February 2009.
HARPS能检测到到由像地球一样小的行星引起的轻微的引力摇摆,只要它们无限接近运行轨道。
HARPS can detect the slight gravitational wobble caused by planets as small as Earth, if they have incredibly close-in orbits.
在其最接近点,这颗巨大的行星将旋转着靠近地球,而其亮度则会是1963年~ 2022年里最亮的。
At its closest approach, the giant planet will swing closer and shine brighter than at any time between 1963 and 2022.
在每一年的春分点上,太阳横跨着地球上的赤道,使得地球上大部分地区的白天和夜晚的时间接近相等。
At each equinox, the sun crosses the Earth's equator, making night and day of approximately equal length on most of the planet.
这种飞行器能够让任何接近中的彗星或其他可能飞奔至地球而来的太空抛射物体脱轨,并改变它们的运行轨道使其足以偏离地球。
This craft would be able to derail any incoming comets or other outer-space projectiles that might be hurtling towards Earth, and change their trajectory just enough that they miss us.
当这些带电粒子接近地球时,便形成一个很强的磁场区--磁气圈--包围着地球并对地球起一定的保护作用。
When the charged electrical particles approach the Earth, they carve out a highly magnetized region —the magnetosphere —which surrounds and protects the Earth.
约曼斯说:“在那些小行星中,与地球轨道最接近的,对我们的威胁也最大,但是他们也是我们最容易登陆的星球。”
"The asteroids in the most Earth-like orbit are the ones that threaten us most, but they're also the ones that are easiest to get to," Yeomans says.
约曼斯说:“在那些小行星中,与地球轨道最接近的,对我们的威胁也最大,但是他们也是我们最容易登陆的星球。”
"The asteroids in the most Earth-like orbit are the ones that threaten us most, but they're also the ones that are easiest to get to," Yeomans says.
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