Highlights

Two witches brewing a spell in a cauldron

From flying ointments to healing herbs: the forgotten chemistry behind historical witchcraft practices

The unusual concoctions of village witches have historically been dismissed as nonsense hocus pocus – but is this the whole story? Victoria Atkinson investigates the chemistry behind the myth and whether there was more to witchcraft than ritual and superstition

Pads and cotton buds with makeup that has been removed

Consumers question safety of parabens and PFAS in personal care products amid health concerns

Growing research into cosmetic ingredients has been raising safety concerns among consumers. Bárbara Pinho explores the future of safer chemistry amid the ‘clean beauty’ trend 

Fossilised skull of  Australopithecus sediba, showing the teeth clearly

How stable isotope analysis reveals what ancient humans and Neanderthals ate

Analytical chemistry can tell us what our ancestors ate thousands – or even millions – of years ago. Rachel Brazil gets her teeth into the evidence

Falling faceless man

The chemistry of fear

Recent advances in measurement techniques have shed light on the different roles of various biomolecules during frightening and stressful situations. Anna Demming looks at how it may lead to new therapeutic interventions for conditions like PTSD

Atomic masses of phosphorus across time

How atomic weights change with scientific understanding

Why do the atomic weights on the periodic table keep changing? Kit Chapman meets the team behind the decimal places

Topics

Anglo-Saxon coins

Tale of Britain’s post-Roman economic crash overturned by ancient metal pollution discovery

2025-09-12T08:28:00+01:00By

Analysis points to metal-working industry continuing long after Romans left

Snuff tube residues push back date of oldest hallucinogen use in Peruvian Andes

Chemical analysis reveals traces of a number of psychoactive compounds thought to have been used to secure leaders’ status

Iron from single meteorite found in ancient Polish artefacts

Discoveries indicate meteoritic iron was falling out of fashion in the late iron age

Ancient Vesuvius victim’s brain contains first natural organic glass ever seen

Extreme heating followed by rapid cooling formed unique material in a Herculaneum man

Bismuth crystals close up, geometric swirls of green yellow and purple

Exploring the frontiers of the periodic table: bismuth catalysis and its applications

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Join us on 16 October to learn about state-of-the-art synthesis coming from one of the world’s leading catalysis research groups

US charity launches $100 million green chemistry initiative

Gordon and Betty Moore Foundation to fund seven year project headed by sustainable chemistry pioneer Paul Anastas

Pitfalls in cytotoxicity studies could be tripping up chemists

Team proposes how to broaden and standardise biological testing in sustainable chemical research

‘Chemistry changed the world before, we just need to do it again’: Stockholm declaration reimagines future

Paul Anastas talks to Chemistry World about organising call for chemistry to transform itself and make the world more sustainable

Chemists urged to build a greener future by Stockholm declaration document

‘Father of green chemistry’ Paul Anastas among those spearheading call to action

Filter paper simplifies squaramide synthesis

Capillary-driven flow distributes reagents evenly

SciHub

Indian court bans Sci-Hub, leaving some researchers worried

Institutes that are not part of government-led subscription schemes worry they cannot afford paywalled research

New UK facility to turbo-charge development of novel RNA therapies

Government to invest £30 million in RNA biofoundry to accelerate therapies for cancer and genetic disorders

Science content on Bluesky attracts more engagement and originality than on X

New social media site is proving better for sharing research findings

Proposal to limit US student visa durations draws criticism

Academic groups warn that the proposed rule will deter talented researchers, harm the economy and add bureaucracy