So when we want to learn whether a planet is habitable, whether it might be amenable to life, we want to know not only how much total light it receives and how warm it is, but we want to know about its space weather -- this high-energy radiation, the UV and the X-rays that are created by its star and that bathe it in this bath of high-energy radiation.
当我们想要了解一颗行星是否适宜居住， 是否能承载生命， 我们不仅想要知道它接受到多少阳光， 温度有多高， 我们还想知道它的太空气候。 由恒星所产生的 强力的辐射线， 比如UV射线与X射线。 行星就沐浴在这些强力的射线中。