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It is one of the most infectious diseases around, and can cause blindness and hearing loss - and can also be fatal. Why are cases now soaring and what can be done about it?

Monogamy may be held up as an ideal, but evolution has other ideas ...

Tablets could make treatment more mainstream, with sector predicted to be worth $200bn by end of the decade ...

Epibatidine is about 100 times more potent than morphine, and derived from frogs native to South America ...

ISS now fully crewed after a medical issue forced the evacuation of four astronauts in January ...

Pressure, frictional heating and a disordered layer of molecules on top of the ice make skating possible ...

Doubling of fish biomass and rebounding of endangered species shows government measures starting to work, biologists say ...

Letters: Physics research drives technological innovation, from medical imaging to data processing, write Dr Phil Bull and Prof Chris Clarkson; plus letters from Tim Gershon and Vincenzo Vagnoni, and Prof Paul Howarth ...

Doyne Farmer says a super-simulator of the global economy would accelerate the transition to a green, clean world ...

Madeleine Finlay hears from Aisha Down about what Moltbook, a social network for bots, tells us about AI and about us ...