Originally posted this in May 2015. Want to put it here so it's easier to find, just a sampling of what's out there:
Here are some fairly recent articles I found about the latest science behind mindful meditation:
1. This is a nice article (from the Harvard Business Review of all places), short & sweet, has links to other academic papers: hbr.org/2015/01/mindfulness-can-literally-change-your-brain
2. Hard-Science papers by Britt Holzel (and others) on meditation science: