Astronomers have just found a brand-new planet in the neighborhood galaxy that resembles Earth. It’s just 186 trillion miles, or 31 light-years, away.
This barely seems like a small distance by human standards. In actuality, the trip would take a jet 40 million years to complete.
天文学家刚刚在邻近星系中发现了一颗与地球相似的全新行星。 距离只有 186 万亿英里，即 31 光年。
以人类的标准来看，这似乎只是一个很小的距离。 事实上，喷气式飞机需要 4000 万年才能完成这次旅行。
