Youtube activity of "Charles Brightman" (@charlesbrightman4237) on "PBS Terra" channel.
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UCWyYYP0wgx9wsKJ4irNwlYw
Commenter youtube id
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Charles Brightman
Commenter name
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@charlesbrightman4237
Commenter name id
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"Can Humans Get to Mars Without Going Insane?"
Comments by video
"Earth was frozen for MILLIONS of years. What does that teach us about today?"
"What Happens When Demographics Change Forever?"