Title text:
'Beyond that lies a vale of fire through which my vision cannot penetrate' is the kind of fun thing geologists, heliophysicists, and early universe cosmologists have a lot of opportunities to say.
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3243/
Definitely TTS, maybe AI text source. Google came up with lengthy texts or elsevier-links. The 3min video didn't feel too bad to provide the gist of it in 3minutes. I didn't think of wiki.
Thanks for the link.