Admin Administrator Staff member Mar 18, 2008 18,379 2,555 23,560 Visit site Nov 8, 2023 #1 Kelly and Zach Weinersmith discuss important unanswered questions about human space settlement in their new book, A City on Mars. Book excerpt: 'A City on Mars' : Read more
Kelly and Zach Weinersmith discuss important unanswered questions about human space settlement in their new book, A City on Mars. Book excerpt: 'A City on Mars' : Read more