https://dothemath.ucsd.edu/2011/10/why-not-space/
http://www.antipope.org/charlie/blog-static/2007/06/the_high...
$15,000/kg, to the Moon.
https://dothemath.ucsd.edu/2011/10/why-not-space/
http://www.antipope.org/charlie/blog-static/2007/06/the_high...
$15,000/kg, to the Moon.