It's that time of year when tornado alley swings into action. But is it moving?
The US is introducing new environmental protections aimed at limiting long-lived PFAS chemicals in tap water, but these are only the tip of a very persistent iceberg.
Amid reports of a mysterious respiratory illness spreading among children in China, an expert explains how regularly unexplained outbreaks turn up.
Aspartame is expected to join aloe vera and bracken ferns on the WHO's list as a "possible human carcinogen". But what does it all mean?
The loss of the submersible Titan during a visit to the wreck of the Titanic has raised questions about just what risks are involved in such an expedition to the deep.
A group of Iberian orcas have a risky new hobby: chasing sailboats and breaking their rudders. Now scientists are finding out what's really behind the fad.
Above the Atlantic, various aircraft and surveillance technologies are being deployed to search for the missing Titan submersible. How do they work?
This week UNESCO announced it has found three new shipwrecks, including two that are thousands of years old. But just how many more are out there?
Scientists have announced that a potentially strong El Niño climate pattern began in June 2023. What effect might that have on our lives?
