Tech breakthroughs to watch in 2012

From invisibility cloaks to virtual atom smashing, 2011 was a year for advancing our knowledge, both on Earth and in space. ZDNet presents this guide to the accomplishments and discoveries from researchers at Cern, Nasa, Manchester University and more, all of which will be ones to watch in 2012.

You can read this free guide on any screen, from tablet to e-reader, desktop to mobile device -- or even print it out.