Physicists are scrambling to understand why dark energy is weakening. In a surprising twist, we must now reconsider the possibility that our reality contains extra dimensions

Putting silicate rocks from mine waste on fields could improve crops and limit global warming, but some researchers question where all that rock is going to come from

This is a New Scientist special package about shock results that have upended cosmology. What do they mean for our models of the universe, and what are the alternative explanations?

Last year, our most detailed map of the universe yet suggested our understanding of dark energy has been wrong for decades. The shock result is reigniting the search for a better cosmic story   

Frailty can typically only be lessened through lifestyle changes, but a stem cell therapy seems to target the underlying causes of the condition, boosting the mobility of frail older people

As it faces yet another set of delays, NASA’s Artemis programme is being shaken up, delaying an actual moon landing in favour of smaller, faster steps forward

Pouring 65,000 litres of sodium hydroxide into the Gulf of Maine removed up to 10 tonnes of carbon dioxide from the atmosphere without harming wildlife, according to the researchers behind an ocean alkalinity

Neuron-powered computer chips can now be easily programmed to play a first-person shooter game, bringing biological computers a step closer to useful applications