by Crash Course
Video Lecture 14 of 47
Not yet rated
Views: 614
Date Added: August 11, 2016

Lecture Description

Venus is a gorgeous naked-eye planet, hanging like a diamond in the twilight -- but it’s beauty is best looked at from afar. Even though Mercury is closer to the sun, Venus is the hottest planet in the solar system, due to a runaway greenhouse effect, and has the most volcanic activity in the solar system. Its north and south poles were flipped, causing it to rotate backwards and making for very strange days on this beautiful but inhospitable world.

This episode is brought to you by Squarespace


Table of Contents
Venus’s Size and Atmosphere 3:09
Hottest Planet in the Solar System 4:04
Slow Clockwise Rotation 6:02
Tremendous Volcanic Activity 8:31


PBS Digital Studios:

Follow Phil on Twitter:

Want to find Crash Course elsewhere on the internet?
Facebook -
Twitter -
Tumblr -
Support CrashCourse on Patreon:


Naked-eye Venus photo taken by Phil Plait
Phases of Venus [credit: Wikimedia Commons]
2012 Venus Transit [credit: NASA]
Black drop effect in 2004 [credit: Vesta]
Venus Transit [credit: JAXA/NASA/Lockheed Martin]
Venus in real colors [credit: NASA]
Earth [credit: NASA Goddard Space Flight Center, Image by Reto Stöckli]
Venus [credit: NASA/JPL-Caltech/Magellan Project]
Atmospheric Drag on Venus [credit: NASA]
Lakshmi Planum and Maxwell Montes [credit: NASA/JPL]
Artist's impression of the surface of Venus [credit: ESA]
Venera Images [credit: Ted Stryk]
Venus Globe [credit: NASA]
Impact craters on the surface of Venus [credit: Wikimedia Commons]
Idunn Mons [credit: NASA/JPL-Caltech/ESA]
Pancake Volcanoes [credit: NASA/Jet Propulsion Laboratory]

Course Index

Course Description

In this Crash Course series, marvel at the wonders of astronomy with your host for this intergalactic adventure, the Bad Astronomer himself -- Phil Plait. In just 40 short lessons, you will learn the basics of the oldest science known to humanity.

Be sure to check out links to relevant Photos in the description for each video.


There are no comments. Be the first to post one.
  Post comment as a guest user.
Click to login or register:
Your name:
Your email:
(will not appear)
Your comment:
(max. 1000 characters)
Are you human? (Sorry)