After the discovery of a new elementary particle 10 years ago by Fermilab's CDF and DZero detector collaborations, a group from DZero threw a party. Between bottles of bubbly celebrating the top quark's detection, a contest of brains was in full-swing.
Nature provides three kinds of neutrinos. In the last ten years, physicists have gathered increasingly strong evidence for neutrino oscillations, the transformation of one kind of neutrino into another one.
In November, the Pierre Auger Observatory outside Malargüe, Argentina, celebrates its scientific launch. The observatory will record high-energy cosmic-ray showers with ground-based water tank detectors and air-shower cameras.
