In a major editorial decision, the journal Science has officially retracted a famous and fiercely debated 2011 paper that proposed the existence of an “arsenic-based” life-form. The original study ...

A body of water surrounded by craggy rocks. The “arsenic life” microbe came from Mono Lake, a highly alkaline, arsenic-rich body of water in California. Credit: Al Ungar/Shutterstock In the retraction ...