超级地球与生命

Super-Earths And Life

本课的主题是外星生命,我们如何寻找它们,以及由此而知我们在宇宙中的位置。

哈佛大学

edX

环境与地球

普通(中级)

15 周

  • 英语
  • 622

课程概况

Super-Earths And Life is a course about life on Earth, alien life, how we search for life outside of Earth, and what this teaches us about our place in the universe.

In the past decade astronomers have made incredible advances in the discovery of planets outside our solar system. Thirty years ago, we knew only of the planets in our own solar system. Now we know of thousands circling nearby stars.

Meanwhile, biologists have gained a strong understanding of how life evolved on our own planet, all the way back to the earliest cells. We can describe how simple molecules can assemble themselves into the building blocks of life, and how those building blocks might have become the cells that make up our bodies today.

Super-Earths And Life is all about how these fields, astronomy and biology, together with geology, can help answer one of our most powerful and primal questions: are we alone in the universe?

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你将学到什么

How life may have arisen on Earth

How we discover planets around other stars

What makes a planet favorable for life

How we search for life in our universe

课程大纲

What is life? How did it arise? How does it change over time?
What is a planet?
How do we find and learn about planets outside our solar system?
How has the Earth changed over time? What do these changes mean for the evolution and survival of living things?
How do geological processes shape planets? How do these processes contribute to life?
How many habitable planets are there?
How can we search for life?

预备知识

Basic algebra

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