Breakthrough in Cosmology?
Observing and measuring are not enough though in science. Observational data are needed to validate theories and guide future theoretical research. The 5 year WMAP data that have just been released reveal interesting facts about Universe's composition and its evolution.
There is or not primordial non-Gaussianity (f_NL)?
This is the question that a group of physicists debated during a recent PI workshop on the Origins and Observations of Primordial Non-Gaussianity.
Eiichiro Komatsu thinks (video stream) that f_NL detection in the WMAP data will be a major breakthrough in cosmology since it will give us clues of what happened at the beginning of the Universe.
We cannot claim yet the f_NL existence. The 9 year WMAP data could confirm local f_NL detection.
His presentation in PDF format is available here.