An idea to put a "twist" into radio and light waves to vastly boost the amount of data they can carry is called into question by a number of scientists.

Thick-skinned crocodilians are more touch-sensitive than humans, scientists say.

Astronomers find that what looked like a three-planet system 42 light-years away is in fact a set of six planets - one a "super-Earth" in the habitable zone.

Climate change could lead to the extinction of wild Arabica coffee before the end of the century, a study suggests.

A tennis ball-shaped device with cameras could help emergency services and police verify whether a potentially dangerous place is safe to enter.