At the American Geophysical Union meeting, the Curiosity mission announced that an instrument had finally definitively detected methane in Mars' atmosphere. It exists at a low background level, but there was a spike to about ten times that, which lasted for a couple of months before disappearing. What that means is unclear.
There have been tons and tons of HiRISE images of the Curiosity landing region, and it has taken quite a lot of work for me to find, locate, and catalogue them. This post is a summary of what I've found; after four revisions and updates, it's now version 2.0 of the list.
A new camera is improving the efficiency of the Near-Earth Asteroid Program at the Center for Solar System Studies. This update from Shoemaker NEO Grant winner Bob Stephens reveals amazing recent progress using his 2013 Planetary Society grant.