91av

News

Explore the most exciting new ideas and emerging concepts in science, health, technology and the environment with 91av’s exclusive in-depth articles, interviews and long reads.

Health

Resuscitated human retinas respond to light 10 hours after death

Perfusing donor human retinas with blood and oxygen meant they continued to respond to light for up to 10 hours after death, marking a significant step towards eye transplants that restore vision

News
Close-up of marbles

Physics

Mathematics of thermodynamics is being rewritten after 200 years

News
Fluorescence in situ hybridisation (FISH) micrograph of Down's syndrome chromosomes (red) in a foetus' cell nuclei (blue). The FISH technique enables individual chromosomes within the nuclei to be tagged with a fluorescent dye. Here, three copies of chromosome 21 are seen in each nucleus, the cause of Down's syndrome. In a healthy human, each nucleus contains only two copies of chromosome 21. Chromosomes are the parts of a nucleus responsible for carrying the genetic code. Down's syndrome is a genetic disease which causes mental retardation and typically flattened features. It affects around 1 in every 650 babies.

Health

Injection halves risk of chromosome error common in older human eggs

News

Life

A worm that lived half a billion years ago preferred turning right

News

Environment

Seeding clouds with seawater could prevent a super El Niño

News
Physics

The physicist trying to solve the gravity question

Video
Light micrograph of a section through follicles in an ovary. The immature eggs (orange) are surrounded by a fluid-filled cavities (light pink) and granulosa cells (dark pink), which provide immature eggs with nutrients and hormones

Health

Our fertility window could be extended by making ovaries softer

News

Secrets of the Superagers

Video

Health

Lambs born via IVF using highly immature eggs in major breakthrough

News
Polarised light micrograph of crystals of the chemical histamine

Mind

The allergy culprit histamine also boosts our memory

A drug that raises levels of histamine – the chemical that causes allergy symptoms – in the brain boosts our memory by around 10 per cent

News

Environment

How extreme heat affects the body – and the best ways to cope

News

Technology

Peter Shor’s algorithm could break the internet – but he’s not worried

News

Technology

Salt batteries are about to shake up EVs and grid storage

News

Environment

5 graphs that show how heatwaves are getting more dangerous

News