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 ...

Asking a biologist to define 'life' is a bit like looking-up the word 'definition' in a dictionary — it's as if you're questioning their very existence. Biologists like myself don't agree on what life ...

To successfully look for life beyond our own solar system, astrobiologists desperately need a viable definition of life. Even after a century or so of debate, they lack a viable universal definition ...