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A 500-kilometre-wide object in a similar orbit to Pluto challenges our assumptions about small bodies in the outer solar system

An update to an experiment run by Henry Cavendish in 1773 could be a cheaper and faster way to spot a potential dark matter particle – and may be 10,000 times more sensitive

To mark David Attenborough turning 100, New Scientist staff have been set a tricky task: pick your favourite of his many amazing documentaries...

A small trial found that chewing gum containing nitrate can ease the symptoms of gum disease by favouring the growth of beneficial mouth bacteria

A device you attach to your underwear reveals how often you really break wind – and it’s probably more frequently than you think

The second half of this year will almost certainly see the start of an El Niño phase that could lead to extreme heat across much of the globe, and James Hansen expects that to make this year surpass 2024 as the hottest on record

National Health Service rules state that all software created with public money should be publicly available, but fears of computer-hacking AI models like Mythos have prompted a change in policy

Should you really be drinking eight glasses of water a day? What about reaching for a sports drink after exercise? Physiologist Tamara Hew-Butler is here to bust these hydration myths and more.

An infestation of caterpillars can make an oak tree postpone when it opens its leaves next year by three days, wrong-footing the insects when they attack again

With progress at COP climate meetings stalling, 57 countries took part in the first of a new series of conferences aiming to develop roadmaps away from fossil fuels, but big emitters like China and the US were absent

Silvia Park, author of the May read for the New Scientist Book Club, reveals how a book that was originally intended to be for children took a darker route following a death in the family

In this extract from Luminous, the May read for the New Scientist Book Club, we meet a mysterious robot discovered in a salvage yard in Seoul, in a future reunified Korea

Uranus’s outermost two rings are surprisingly dissimilar, which opens up a mystery about the tiny moons and moonlets that form them

The implications of quantum mechanics suggest reality isn't as solid as we think it is, but physicist David Bohm had a spin on the theory that restores reality. Columnist Karmela Padavic-Callaghan explores how we could test Bohmian mechanics – and if it will ever become more widely accepted

A cryptocurrency that aims to avoid the disastrous energy consumption of bitcoin is actually using 18 times more energy than its makers claim – but it promises improvements are on the way

An ambitious study has explored how the oral microbiome may affect our metabolic health, raising hopes that conditions like pre-diabetes could one day be screened for via a simple mouth swab

Since the early 20th century, people’s skulls have got rounder and their jaws have got wider, probably because of changes in health, diet and environment

Researchers in South Korea say they have made a major advance by turning on genes with an electromagnetic signal, but critics say the claims are implausible and the paper is flawed

New science fiction from big names including Ann Leckie, Alan Moore and Martha Wells are just some of the exciting crop of titles out this month

Craig Venter has died aged 79. He was at the forefront of sequencing the human genome and of synthetic biology, but divided opinion in how he went about it