And high-quality space-based observations go back just a decade—not even a full solar cycle.

而高质量的空间探测活动也才有十余年历史—甚至没有达到一个太阳活动周期的时间。

Each carrying a 15kg backpack, Mike and Lorraine hiked along cliffs, explored golden sandy beaches, and even cycled.

迈克和洛林各自背着15公斤的背包，沿着悬崖徒步旅行，探索金色的沙滩，甚至骑自行车旅行。

Relatively speaking, it's not too cold, it's not too hot and there's even a day and night cycle that is actually quite similar to our own.

相对来说，它不太冷，也不太热，甚至有与我们自己的星球十分相似的昼夜循环。

Like there are many ways for you to do that: you can take a plane, you can drive, you can take a train, you can even cycle or walk.

有很多方法可以做到这一点：你可以坐飞机，开车，坐火车，甚至可以骑自行车或步行。