This new information makes it pretty clear that the cause of the Pioneer Anomaly, that is the deviation of the Pioneer spacecraft from the trajectories dictated by gravity alone, is due to thermal sources internal to the spacecraft. A satisfying result, though it produces no new physics.
The Physics Nobel Prize will be awarded tomorrow. I would be surprised if it is not for the Higgs Boson discovery. Here’s a ScienceBlog review of a book that names the key figures who are in the running for the award. Too bad it can only go to three of them. I blogged about the … Read more