Omega_lambda, Omega_m ! We know you're in there. We've got you   surrounded. Come out with your hands up
  Recent cosmic microwave background measurements combined with recent supernovae limits and other observational data have ambushed Omega_lambda and Omega_m. These cosmological culprits are trapped in a small pocket of parameter space: Omega_lambda = 0.62 +/- 0.16 and Omega_m = 0.24 +/- 0.10. If this is correct then an unknown 2/3 of the Universe has been identified. 
Charles H. Lineweaver (University of New South Wales, Sydney,   Australia)