An intriguing correlation between the masses and periods of the   transiting planets
  We point out an intriguing relation between the masses of the transiting planets and their orbital periods. For the six currently known transiting planets, the data are consistent with a decreasing linear relation. The other known short-period planets, discovered through radial-velocity techniques, seem to agree with this relation. We briefly speculate about a tentative physical model to explain such a dependence. 
Tsevi Mazeh (1), Shay Zucker (2) and Frederic Pont (2) (Wise   Observatory, Tel Aviv, Israel, (2) Geneva Observatory, Geneva...