Various media articles on today's story (but basically the same):
https://www.livescience.com/lava-tubes-mars-and-moon-habitable.html https://www.sciencedirect.com/science/article/abs/pii/S0012825220303342?via%3Dihub https://www.sciencedaily.com/releases/2020/08/200805110118.htm https://scitechdaily.com/lava-tubes-on-mars-and-the-moon-may-be-suitable-for-planetary-bases-up-to-1000-times-wider-than-those-on-earth/ https://www.newser.com/story/294977/the-moons-lava-tubes-can-fit-entire-cities.html Lee _______________________________________________ Texascavers mailing list | http://texascavers.com Texascavers@texascavers.com | Archives: http://www.mail-archive.com/texascavers@texascavers.com/ http://lists.texascavers.com/listinfo/texascavers