Scientists say NASA's 'new form of life' was untrue
Two scientific papers published Sunday disproved a controversial claim made by NASA-funded scientists in 2010 that a new form of bacterial life had been discovered that could thrive on arsenic.
Crunch time looms in quest for 'God particle'
A nearly 50-year bid to explain a riddle of fundamental matter faces a key moment on Wednesday when physicists unveil fresh data in their search for a particle called the Higgs boson.