He joined researchers from 15 universities and COLDEX to find the oldest ice on the planet and study the prehistoric dust particles trapped inside.

他与来自 15 所大学和 COLDEX 的研究人员一起寻找地球上最古老的冰，并研究其中捕获的史前尘埃颗粒。

Further  radiation from galactic cosmic rays and charged particles trapped in the Van Allen Belts may  endanger the occupants of any space colony.

来自银河宇宙射线和范艾伦带中带电粒子的进一步辐射可能危及任何太空殖民地的居民。