Fortunately, Congress rejected NASA's first operating plan (partly in thanks to the one thousand messages sent by supporters of the Planetary Society). The final number is still less than an even application of the sequester cut, but it's far better than the alternative.
NASA / Casey Dreier
Chart: Planetary Science Budget Uncertainty in 2013
The budget for NASA's Planetary Science Division faces real uncertainty. Notice the large discrepancy between the President's budget requests and the actual budgets passed by Congress. The 2013 operating plan is the final number for Planetary Science this year and includes the sequester cut as well as additional reductions imposed internally by NASA. The Europa spending in 2013 is an estimate.
Even though NASA relented a bit and provided $75 million more than originally proposed, the Planetary Science Division still sees a cut of $229 million from last year. Fortunately, we have strong advocates in Congress, and though the White House again requested sharp cuts to the program for 2014, we're working towards reversing those as well.
Overall this is good-but-not-great news. We now know that the highest levels of NASA do not particularly value planetary exploration. Congress does have relatively strong support, but larger partisan issues have overturned the normal flow of the budgeting process, resulting in extended periods without Congressional guidance, leaving internal budgets under the direction of White House and NASA policy, which does not help us.
We hope that NASA and the White House gets the hint about providing additional resources to the popular and productive planetary program. We'll keep following this closely, but from now on we're looking to the future.