There's not one hardest math problem, but there are many difficult, unsolved problems that mathematicians are eager to solve. One organization has offered a $1 million reward to anyone who solves ...

May 22, 2025 — A modeling study shows that global warming will make it harder to reduce ground-level ozone, a respiratory irritant that is a key component of smog, by cutting greenhouse gas ...

For more audio journalism and storytelling, download New York Times Audio, a new iOS app available for news subscribers. transcript This transcript was created using speech recognition software ...

The true essence of math is not solving math problems, especially not those made by others, but requiring us to develop good research direction and good problems and to make our way through." Here are ...

In this study, CAUTIs were marginally associated with catheter blockage but other catheter-related problems reported included blockage (34%), accidental dislodgment (28%), sediment (87%), bladder ...