NASA has discovered a bacteria that can use arsenic -- which is toxic to most forms of life -- as a building block of its DNA. Scientists say the discovery may broaden our definition of what constitutes life and may revolutionize how we search for life beyond Earth.
The Gopher State will be a happier place for babies come Jan. 1. That's when it enacts the first-ever ban on plastic sippy cups and baby bottles containing Bisphenol-A. The Federal government has yet to act on BPA, a controversial chemical feared to harm fetuses and children.