Kissing feels instinctive and intimate, yet scientists now argue it is a surprisingly recent and uneven addition to human behavior. Instead of a single romantic origin story, the evidence points to a ...

For years, people taking one of the world’s most common heart drugs have described the same nagging side effect: sore, aching muscles that can be bad enough to make them stop treatment. Now ...

Long before it became a familiar sign of romance or affection, kissing appears to have taken shape among the earliest ancestors of humans and other great apes. A new study led by the University of ...

Scientists detect a lithium plume 100km above Earth and trace it to a returning SpaceX Falcon 9 rocket stage, raising new questions about atmospheric pollution.