the last two paragraphs sum this up nicely:
A decade ago, Anderson and other researchers reported that the two Pioneer spacecraft seemed to be heading out of the solar system at speeds too high to be explained by the standard theory of gravity, but that claim remains controversial. Anderson says that because the new findings include a multitude of craft in the easier-to-measure near-Earth environment, the results appear to be on firmer footing.
With other, more mundane explanations, such as errors in software tracking, still to be explored, "it's way too early to get excited about this," says Ron Hellings of Montana State University in Bozeman.
it looks like it's still way too early for us to give up on einstein
