研究人员发现在北方天穹，精细结构常数在越远的地方就越小，或者说天文学家所看到的过去越久远。
The researchers found that in the northern sky, the fine-structure constant gets smaller with increasing distance, or as astronomers look farther back in time.
这项技术如今更加精确，天文学家称，这样就可以推测更精确的哈勃常数值以及该值的不确定性。
The technique is now more precise, astronomers say, and so more accurate values for Hubble's constant and the uncertainty of the value of that constant can be reliably determined.
为了提高天文潮推算的精度，必须采用最接近推算年份的调和常数进行潮汐推算。
In order to improve the tide prediction, it is necessary to use new tide constants obtained from the nearest tide data.
然而现有物理学理论还无法给出合理的解释，因此宇宙学常数问题成为物理学和天文学上最重大的疑难之一。
However, the small cosmological constant and cosmic coincidence problem cannot be resolved within the known laws of physics, which is the famous cosmological constant problem in physics and astronomy.
天文学家于1998年发现到宇宙正在加速膨胀，但其加速度所对应到的宇宙常数，却是量子理论预测值的10- 120倍。
In 1998 astronomers discovered that the universe's expansion is accelerating at a rate consistent with a cosmological constant 10-120 times the value predicted by quantum theory.
当代天文学的一系列观测事实都支持应该存在一个非零的正的宇宙学常数 。
The physical origin of the cosmological constant is considered to be one of the most difficult and important problems in modern physics.
当代天文学的一系列观测事实都支持应该存在一个非零的正的宇宙学常数 。
The physical origin of the cosmological constant is considered to be one of the most difficult and important problems in modern physics.
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