Scientists have debated the definition of life for decades, but they still lack a consensus on the answer. Experts believe that "edge cases" make life difficult to define and blur boundaries across ...

The term life sciences usually comes up whenever Philly’s innovation economy is discussed. There’s excitement in the long-term potential of areas like cell therapy and its implications for cancer ...

Last week, I sat for an exam that induced more perspiration than was necessary. My previous exam had been more than a year ago and although the one last week was more of an informal affair (there were ...

People often feel that they can intuitively recognize whether something is alive, but nature is filled with entities that flout easy categorization as life or non-life — and the challenge may ...