99% Invisible-09X-99% Doomed

<p>99% Invisible Extra! NASA is figuring out how to take the next great leap into space. The difficulty is, if we leap to Mars, we might not make it back. This is a story I produced last year (Summer 2009) … <a href="http://99percentinvisible.prx.org/2010/11/13/99-invisible-09x-99-doomed/" rel="nofollow" target="_blank">Continue reading →</a></p>