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.
As an ongoing feature of my blog, here is my Science Book roundup for April and May of 2019. I will occasionally publish full reviews of titles that I consider particularly important. My usual caveat: For my Roundups, I don’t read all of the books in detail, but they are published by reputable publishers and … Read more