Aviation Week has a short article on the benefits of the Mars Science Laboratory slip -- more time for testing. Given the complexity of the mission, this benefit may be important.
There have been several articles about a recent research report that Ceres could be the abode of life. While the speculation that Ceres could have been the source of life on Earth seems a bit far fetched (but, hey, it's a strange and wonderful universe, so who knows), it does give hints about what a fascinating world Ceres may present to the Dawn spacecraft when it arrives in 2015. Between now and then, we'll have an extended visit at the asteroid Vesta, which is fascinating in its own right.