Summary of Everything, The Universe...And Life: Crash Course Astronomy #46

00:00:00 - 00:10:00

This video discusses the possibility of alien life and the recent discovery of thousands of exoplanets. The presenter explains that although we don't have any evidence that suggests aliens exist, the numbers suggest that it's likely that they do. He also points out that life on Earth arose relatively soon after it formed and that it's likely easy for alien life to form in similar environments.

• 00:00:00 In this Crash Course Astronomy video, Phil Plait discusses the possibility of alien life and the recent discovery of thousands of exoplanets. He explains that although we don't have any evidence that suggests aliens exist, the numbers suggest that it's likely that they do. He also points out that life on Earth arose relatively soon after it formed and that it's likely easy for alien life to form in similar environments.
• 00:05:00 In this Crash Course Astronomy video, the presenter explains that alien life is unlikely because there is no evidence of it, and advanced life on Earth is a relatively recent development. He also notes that radio waves are a better way to communicate with aliens than through space travel, and that if aliens do exist, they are probably listening to us right now.
• 00:10:00 This video discusses the importance of astronomy, and how it has helped scientists learn about the universe. It also features a discussion of Crash Course Astronomy, which is produced by PBS Digital Studios.