View Single Post
Old 12-15-2016, 04:50 PM   #4 (permalink)
[MERIT]
Account Disabled
 
[MERIT]'s Avatar
 
Join Date: Nov 2004
Location: Missouri, USA
Posts: 4,820
Default

A model like this seems ridiculous:



They most likely use artificial sources of light or even natural sources, as many plants can give off light. Being such an old / advanced civilization, the possibilities are virtually endless. But a sun inside of the planet? No. The core is solid.
[MERIT] is offline   Reply With Quote