Evidence for this explanation has been around for a number of years though this appears to be the final nail in the coffin for nay sayers. Some very precise mod

Evidence for this explanation has been around for a number of years though this appears to be the final nail in the coffin for nay sayers. Some very precise modelling of the pioneer spacecraft and its thermal properties was done a couple of years ago and this bore out the thermal radiation theory. http://blogs.discovermagazine.com/cosmicvariance/2010/12/15/farewell-pioneer-anomaly/ http://blogs.discovermagazine.com/cosmicvariance/2010/12/15/...