Test: Click and Play 4 (Two Waves)
Planetary systems outside our own are like distant cities whose lights we can see twinkling, but whose streets we can't walk. By studying those twinkling lights though, we can learn about how stars and planets interact to form their own ecosystem and make habitats that are amenable to life.
Transcript: Mike BiddleI'm a garbage man. And you might find it interesting that I became a garbage man, because I absolutely hate waste. I hope, within the next 10 minutes, to change the way you think about a lot of the stuff in your life. And I'd like to start at the very beginning. Think back when you were just a kid. How did look at the stuff in your life? Perhaps it was like these toddler rules: It's my stuff if I saw it first. The entire pile is my stuff if I'm building something. The more stuff that's mine, the better. And of course, it's your stuff if it's broken.
Planetary systems outside our own are like distant cities whose lights we can see twinkling, but whose streets we can't walk. 在 我們 太陽系 之外 的 行星系 就 好像 遙遠 的 城市 ，我們 可以 看見 有 燈火 在 閃爍 ，但是 卻 有 一 條 難以 踰越 的 街道 。