NASA announced Wednesday that its Perseverance rover discovered what scientists are calling a "potential biosignature" in a rock on Mars last year. This signature, which may have a biological origin ...

A biosignature is any characteristic, element, molecule, substance or feature that serves as evidence for past or present life. It must be something that cannot be produced without life. Some examples ...

Recent headlines warning of concerns such as heart risks or danger to teenagers have put a new spotlight on a diet trend that ...

Whether intermittent fasting helps anyone is unclear, but it does have known health risks. Who can try the dieting trend, and ...

The oil industry touts Texas as a success story in controlling climate-warming methane emissions. The state’s regulator, ...