Patrick Hughes delves into the molecule at the centre of a decades-old cancer treatment conspiracy theory

Georgia Mills tackles the feel-good neurotransmitter and hormone behind thrill seeking, addiction and mobile gaming

Mike Freemantle finds the connection between Land of Hope and Glory and the noxious, corrosive, flammable gas that stinks of rotten eggs

One doctor's battle with alcoholism and self-experimentation with baclofen led to a rush of people desperate to try the drug to curb their addictions. But are we simply replacing one problem with another, asks Enna Guadalupe 

Microplastics, including polypropylene, are present in our oceans, on our beaches and even in bottled water. Ian Robertson from PerkinElmer investigates the scale and some solutions

Lay back in the chair and say 'Ahh', as Mike Freemantle introduces zinc polycarboxylate dental cement

The versatile gemstones that give scientists insights into the chemistry of the early Earth, introduced by Brian Clegg

Chemistry’s tastiest bonds for an explosive anaesthetic that was as useful as it was dangerous

Ben Valsler introduces a class of hallucinogenic phenethylamines, explored by the 'godfather of psychedelics' Alexander Shulgin and sadly implicated in a tragedy at a 2017 music festival

The first drug approved in the US to treat Aids required a completely new approach to clinical trials – Frances Addison explores the history of azidothymidine