首先，人们发现这种难以捉摸的粒子具有质量。理论家相信它和光子一样，在宇宙中含量丰富，但是几乎从不与任何物质发生反应。

First the elusive particles, which theorists believe to be as abundant in the universe as photons, but which almost never interact with anything, turned out to have mass.

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但是艾姆斯研究中心的理论家杰克·利索尔称，如果没有可以观察的凌日现象，要想确定这些行星的轨道情况和质量就会难得多。

But Ames theorist Jack Lissauer says that if no transits are observable, it will be much harder to pin down the orbits and masses of these planets.

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但是只有在设置希格斯色子的质量到一个特别精准值的情况下，理论家才能够从它们的方程组中消除波动。分量变重或者变轻，都会导致整个理论结构体系土崩瓦解。

Theorists can eliminate the fluctuations from their equations, but only by setting the Higgs mass to a very precise value — a fraction heavier or lighter and the whole theoretical edifice collapses.

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