Six years of observations revealed the presence of five planets between 13 and 25 times the mass of Earth.
经过长达六年的观测，发现有五颗行星的质量是地球的13-25倍。
The exoplanet is a few times the mass of Earth, but it should still be small enough to be rocky rather than a gas giant like Jupiter.
这个系外行星的质量是地球的几倍，但是它足够小，能够由岩石构成，而不是像木星是一团巨大的气体。
Its mass is about 55 times the mass of Earth.
它的质量大约是地球质量的55倍。
A huge mass of earth was shifted during the landslide.
一个大土块在山崩中移位了。
The team also said they found a planet 7.5 times the mass of Earth orbiting the star HD 181433 in 9.5 days.
该小组还说他们发现了一颗质量是地球的7.5倍的行星，以9.5天为一个公转周期，绕着HD 181433号恒星转动。
It is about 8 times the mass of Earth, and located in an orbit just right for liquid water to exist on the surface.
它大概是地球质量的8倍而且它所在的轨道恰好有益于在其表面有液态水的存在。
Geocenter motion is the relative displacement from the center of mass of Earth to the origin of the Terrestrial Reference Frame.
地球质心(简称地心)是指包括海洋大气等的整个地球的质量中心，地心运动是地球质量中心相对于地球参考框架原点的位移。
Another solar system has a planet 22 times the mass of Earth, orbiting every four days, and a Saturn-like planet with a 3-year period.
另一个太阳系有一颗质量是地球22倍的行星(译者：可怜的小地球)，公转周期为4天，还有一颗公转周期为3年的类木星行星。
The planet, referred to as HD85512b, is about 3.5 times the mass of Earth and may be close enough to its primary star to contain water.
这颗编号为HD 85512b的行星是地球质量的3.5倍，离其主恒星距离较近，足以容纳水分。
So God called professors from the Earth to see only the volume increases, while ignoring the mass of Earth is also growing problems.
所以神召教授从中看到的只是地球体积的增大，而忽略了地球质量是否也在增大的问题。
Lissauer posits an upper limit of about 17 times the mass of Earth, though that is subject to revision as more measurements are made.
利绍尔假定它的质量上限是地球质量的约17倍，虽然后期的测量会作出修正。
A fourth object, which has more than ten times the mass of Earth and is the nearest to the star yet found, was noticed by another team in 2004.
第四颗行星被另一个科研小组于2004年发现，它有着地球十倍的质量，而且是与那颗已知恒星距离最近的。
The biggest planet of the new batch is HD 85512 b, which is 3.6 times the mass of Earth and can be found 36 light-years away in the Vela constellation.
在这一批最新发现的行星中，最大的是HD 85512b。其质量是地球的3.6倍，离船帆座36光年远。
From the size of the wobbles, the astronomers determined that Proxima bis at least 1.3 times the mass of Earth, although it could be several times larger.
通过这种移动的大小，天文学家们确定Proxima b的质量至少是地球的1.3倍，尽管它也可能要大上好几倍。
If a rocky planet is big enough - say, 10 times the mass of Earth - it can vacuum up so much hydrogen that its atmosphere ends up constituting most of the planet.
如果一个由岩石组成的行星足够的大——比方说，质量是地球的10倍——它可以吸收如此多的氢，以至于他的大气层最终会形成大部分的行星。
Konstantin Batygin and Mike Brown, two CalTech scientists, say the new planet is about 10 times the mass of Earth and has an atmosphere of hydrogen and helium.
两名来自加利福尼亚理工学院的科学家康斯坦丁·巴特金和迈克·布朗，称新行星的质量大约是地球的十倍，其大气中有含有氢和氦。
None of those planets are like Gliese 581 g, a rocky world about three times the mass of Earth orbiting — along with five sibling planets — a red dwarf star 20 light-year from Earth.
以上说到的行星没有一个像Gliese 581g——一个轨道是地球三倍的满是岩石的世界——还有五个姊妹行星——一个距地球20光年的红矮星。
Six years of observations revealed the presence of five planets between 13 and 25 times the mass of Earth, or about the mass of Neptune, that orbit the parent star once every 6 to 600 days.
经过长达六年的观察，科学家发现有五颗行星的质量是地球的13-25倍，或者说，与海王星的质量差不多，它们围绕恒星的旋转周期在6到600天之间。
Airborne soot and dirt from the impact blanketed Earth, inhibiting photosynthesis and triggering mass extinction of species.
撞击产生的烟尘和灰尘覆盖了地球，抑制了光合作用，引发了物种的大规模灭绝。
The largest terrestrial planet, Earth has a diameter only one quarter as great as the diameter of the smallest Jovian planet, Neptune, and its mass is only one seventeenth as great.
最大的类地行星地球的直径仅仅是最小的类木行星海王星的四分之一，而且地球的质量仅仅是其质量的十七分之一。
The first is a pair of planets, each about the mass of Jupiter, that whirl around their home star 15 light years from Earth in perfect lockstep.
第一个是一对质量与木星差不多的行星，这对行星步调一致地围绕距离地球15光年的母恒星旋转。
Scientists have linked the mass extinction at the end of the Cretaceous with a meteorite impact on Earth.
科学家将白垩纪末期的大灭绝与地球上的陨石撞击联系起来。
So now I will put in the mass of the Earth here.
这样我就又考虑，到了地球的质量。
They estimated the planet's mass as 5.9 to 7.5 times that of Earth.
他们估计这颗行星的质量大约是地球的5.9到7.5倍。
But you could have said "Well, let's not take the acceleration of the Earth, but let's take the mass of the Earth itself Very reasonable, right?
我还可以这样说,“不取地球的,加速度，取地球的质量会怎么样,也很合理，是吧？
If you take the Earth itself around the sun because we can use all these equations replace the mass of the Earth by the mass of the sun, and then we can do this for planets.
如果你算地球绕太阳，因为我们用所有这些，等式，以太阳质量，代替地球质量，然后我们再用行星做。
Well, the earth is going to fall towards the apple — So the force on the earth is the mass of the earth times the acceleration of the earth.
地球也会坠向苹果-，因此地球上的力与地球的质量相等，再乘以地球的加速度。
Mars is nearly half the size of Earth but around one tenth the mass.
火星大小几乎是地球的一半质量是地球的1/10.
Scientists think Earth started off as a waterless mass of rock.
科学家认为，地球最开始只是一团无水的岩石。
Scientists think Earth started off as a waterless mass of rock.
科学家认为，地球最开始只是一团无水的岩石。
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