a theorem most proved被证明最多次的定理 distances and light years距离与光年 sherlock holmes solves a math problem 夏洛克·福尔摩斯解出的一个数学题 ..
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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。
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.
“这颗白矮星距离太阳63光年，与银河系中大多数星球相比，它距离我们的太阳系非常近。”卢迈说。
"The distance of this White Dwarf from the Sun is 63 light-years, which is very near our solar system compared with most stars in our galaxy", Luhman said.
心与灵星云离地球有大约6千光年的距离，形成一个其大无比的星辰制造场，构成了我们银河系英仙座螺旋星云的部分螺旋腕。
Located about 6, 000 light-years from Earth, the Heart and Soul nebulae form a vast star-forming complex that makes up part of the Perseus spiral arm of our Milky Way galaxy.
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