Ars Technica has compiled a list of the biggest science stories of 2011, with added analysis of how they’ll return in 2012. Even if you’re not planted squarely in the STEM disciplines, it does hint at a couple of broader innovation opportunities for the coming year. Specifically: Now that the sun has set on the space shuttle program, private enterprise is stepping in, with new technologies that are finally reaching the testing stages. This interactive timeline from Nature is also well worth a look.