Towards a new test of general relativity?
esa.int
esa.int
That's a factor of 10^20. Such a huge discrepancy with GR beggars belief, so I'd bet there's something else (and probably more banal) going on. On the other hand, if their measurements and interpretation are right, this smells like a Prize.
Link to a pertinent paper: http://www.arxiv.org/abs/gr-qc/0603033v1