Posted: Jan 07, 2013 1:38 pm
kennyc wrote:What ignorance. If there were a "dark body" bigger than Jupiter we would have measured its effect.
Do you have a source for this confidence? Do you understand how small the perturbations by a distant body would be? Do you understand that we have only been making precise orbital observations within the solar system for a few years?
The article you cited, in fact, pointed out specifically how orbital eccentricities could affect our capacity to make such measurements within our solar system. Ask 'your son, the astrophysicist'.
Your reaction was completely OTT. What happened? Did someone filch the plastic whistle prize from your box of Corn Flakes?