课程信息
4.8
271 个评分
66 个审阅
100% 在线

100% 在线

立即开始,按照自己的计划学习。
可灵活调整截止日期

可灵活调整截止日期

根据您的日程表重置截止日期。
完成时间(小时)

完成时间大约为55 小时

建议:20 hours of videos and peer assessments...
可选语言

英语(English)

字幕:英语(English)
100% 在线

100% 在线

立即开始,按照自己的计划学习。
可灵活调整截止日期

可灵活调整截止日期

根据您的日程表重置截止日期。
完成时间(小时)

完成时间大约为55 小时

建议:20 hours of videos and peer assessments...
可选语言

英语(English)

字幕:英语(English)

教学大纲 - 您将从这门课程中学到什么

1
完成时间(小时)
完成时间为 28 分钟

Introduction

This short lecture introduces Professor Spergel, the basic outline of the course and its goals....
Reading
1 个视频 (总计 8 分钟), 2 个阅读材料
Video1 个视频
Welcome8分钟
Reading2 个阅读材料
Course Overview10分钟
Keep in Touch10分钟
完成时间(小时)
完成时间为 1 小时

The Universe is Big!

One of the most striking features of the universe is its enormous size. The lecture discusses the structure of our Solar System, the new dwarf planets, and the distance to the nearest stars. The lecture then moves outwards to the scales of our galaxy and the visible universe....
Reading
3 个视频 (总计 36 分钟)
Video3 个视频
Planets, Stars and the Milky Way11分钟
From Galaxies to the Big Bang7分钟
完成时间(小时)
完成时间为 29 分钟

What is Life?

This lecture introduces different approaches to defining life, a necessary step if we are going to search for life. We then introduce the basic building blocks of biochemistry. One potential way of detecting life is through its byproducts like Methane. We discuss efforts to discuss life on Mars....
Reading
3 个视频 (总计 29 分钟)
Video3 个视频
Introduction11分钟
The Main Components10分钟
How Do We Know it When We See it?7分钟
2
完成时间(小时)
完成时间为 1 小时

Why is Mercury Hot?

This lecture uses energy balance to determine the effective temperature of planets. The lecture introduces the idea of temperature, black body spectrum and luminosity. We then calculate the location of the habitable zone, the range of distances where planets are likely to have liquid water....
Reading
3 个视频 (总计 43 分钟)
Video3 个视频
Energy Conservation and the Temperature of Planets11分钟
Habitable Zone and Goldilocks16分钟
完成时间(小时)
完成时间为 1 小时

Snowball Earth

Planet temperatures depend on the albedo of the planet (its reflectivity) and the transparency of its atmosphere. This lecture introduces the basic physics behind global warming, discusses how non-linear feedbacks can exacerbate its effects, and describes how variations in the Earth’s albedo (mostly due to snow) can produce “Snowball Earth” episodes, extended epochs during which the Earth was mostly covered with ice....
Reading
3 个视频 (总计 44 分钟)
Video3 个视频
Feedbacks and Stability10分钟
Snowball Earth17分钟
完成时间(小时)
完成时间为 1 小时

Planetary Atmospheres

This lecture begins by introducing the basic physics of gases, liquid and solids. The lecture then describes how the balance between gas pressure and gravity shapes the structure of planetary atmospheres....
Reading
3 个视频 (总计 33 分钟)
Video3 个视频
Kinetic Theory11分钟
Hydrostatic Equilibrium12分钟
3
完成时间(小时)
完成时间为 1 小时

Mercury and Venus

This lecture discusses some of the remarkable properties of the two innermost planets, Mercury and Venus. We discuss how Mercury, a very hot planet, can have ice at its poles. We describe its surprisingly strong magnetic field. We discuss the structure of Venus’s atmosphere and how a “runaway greenhouse effect” made its surface uninhabitable....
Reading
4 个视频 (总计 71 分钟)
Video4 个视频
Mercury13分钟
Magnetic Fields12分钟
Venus17分钟
Interview with Sean Solomon27分钟
完成时间(小时)
完成时间为 1 小时

Mars

Mars may be the other planet in the Solar System that hosts life. This lecture introduces the basic properties of Mars, Mars’ atmosphere and its seasons. We discuss Martian exploration, the search for water and methane on Mars and potential signature of life. Seasons....
Reading
3 个视频 (总计 41 分钟)
Video3 个视频
Basics14分钟
Mars and Water13分钟
Our Past and Our Future?12分钟
完成时间(小时)
完成时间为 3 小时

The Moon

By studying the properties of the Moon, we learn not only about its history but about the formation history of the Earth. This lecture discusses the physics of craters and the tidal interactions between the Earth and the Moon. We then apply the physics of tides to see how it shapes the properties of planets around M stars....
Reading
3 个视频 (总计 52 分钟), 1 个测验
Video3 个视频
Basics11分钟
Craters8分钟
Tides31分钟
4
完成时间(小时)
完成时间为 1 小时

Small Bodies of the Solar System

This lecture begins by discussing comets and asteroids, remnants of the formation of our Solar System. We discuss how collisions of comets and asteroids with Earth have shaped its history. The lecture then discusses the moons of Jupiter and Saturn—these moons have complex geologies and atmospheres. Some of the moons may be potentially habitable by life forms....
Reading
3 个视频 (总计 46 分钟)
Video3 个视频
Solar System Moons14分钟
Saturn16分钟
完成时间(小时)
完成时间为 1 小时

Kepler’s Law and Search for Extrasolar Planets

This lecture shows how Kepler’s Law, the relation between a planet’s Period and the radius of its orbit, can be understood in terms of the physics of gravity. We then see how we can use observations of star’s motions (and Kepler’s Law) to detect extrasolar planets and determine their basic properties....
Reading
5 个视频 (总计 87 分钟)
Video5 个视频
Kepler’s Laws and Search for Extrasolar Planets Part II11分钟
Kepler’s Laws and Search for Extrasolar Planets Part III15分钟
Interview with Debra Fischer30分钟
Interview with Freeman Dyson21分钟
完成时间(小时)
完成时间为 1 小时

Kepler and Transits

Transits have been an important event for astronomy for over 400 years. This lecture describes the transit of Venus and how it was used to measure the size of our Solar System. This lecture then discusses how NASA’s Kepler mission observes planetary transits and how its observations have shaped our understanding of the properties of extrasolar planetary systems....
Reading
3 个视频 (总计 45 分钟)
Video3 个视频
Extrasolar Transits 19分钟
Exoplanet Zoo 13分钟

讲师

Avatar

David Spergel

Charles Young Professor of Astronomy on the Class of 1897 Foundation and Chair
Department of Astrophysics

关于 Princeton University

Princeton University is a private research university located in Princeton, New Jersey, United States. It is one of the eight universities of the Ivy League, and one of the nine Colonial Colleges founded before the American Revolution....

常见问题

  • 注册以便获得证书后,您将有权访问所有视频、测验和编程作业(如果适用)。只有在您的班次开课之后,才可以提交和审阅同学互评作业。如果您选择在不购买的情况下浏览课程,可能无法访问某些作业。

还有其他问题吗?请访问 学生帮助中心