New Scientist Space - Cosmology

Interest in the anti-parasitic drug ivermectin skyrocketed during the covid-19 pandemic, but evidence for many of its supposed health claims are lacking

The “One Big Beautiful Bill” just signed by President Trump will slash support for clean energy, leaving the US far short of its Paris Agreement pledge

Ancient humans in Africa changed their behaviour in a major way 70,000 years ago, which could explain how their descendants managed to people the rest of the world

Putting aerosols in the stratosphere to reflect sunlight could prevent the shutdown of key ocean currents, but only if it is done soon, a computer model suggests

Ordering takeaway food, writing emails, reworking presentations: AI assistants are promoted as a way of outsourcing mundane tasks to free up your time for more interesting pursuits. So, what are they actually good for – and what are the risks?

The loss of snow cover in temperate forests is set to slow their growth and reduce their ability to remove carbon from the atmosphere, an overlooked consequence of climate change

Some numbers are so unimaginably large that they defy the bounds of modern mathematics, and now mathematicians are closing in on a number that may mark the edge of this bizarre abyss

Suddenly feeling old? Evidence now suggests that rather than a long, steady decline, we dramatically age around three specific times in our lives. Might it be possible to stay younger for longer?

Around seven asteroids or comets are thought to hit Saturn every year, but we have never spotted one in the act. Now, it seems one astronomer may have caught the moment of impact and the hunt is on for other images to verify the discovery

Drugs and explosive chemicals are difficult to detect, but a device more sensitive than a dog’s nose can pick up their traces in seconds

Computers can help ensure that mathematical proofs are correct, but translating traditional maths into a machine-readable format is an arduous task. Now, the latest generation of artificial intelligence models is taking on the job, and could change the face of maths research

The skull of a 5-year-old girl who lived 140,000 years ago has similarities with modern Homo sapiens and Neanderthals, suggesting her parents might have belonged to different species

Some carbon dioxide absorbed by fig trees gets turned into calcium carbonate within the wood and the surrounding soil, ensuring that the carbon is kept out of the air for longer

A study of fossils from the Permian-Triassic extinction event 252 million years ago shows that forests in many parts of the world were wiped out, disrupting the carbon cycle and ensuring that Earth remained hot for millions of years

The growth of domestic solar installations opens the possibility of hackers targeting their smart inverter devices as a way to cause widespread power-system failures

Not quite crystals and not quite a glass, quasicrystals are an oddity whose properties are not well understood – but now we know how they can remain stable

Working in tandem, a quantum computer and a supercomputer modelled the behaviour of several molecules, paving the way for useful applications in chemistry and pharmaceutical research

Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the asteroid belt, but now a meteorite from the outer solar system is rewriting that view

Forest-based carbon-offset projects need a buffer to guarantee their climate benefits will last – but they may not have nearly enough in reserve

From David Attenborough to Hannah Fry via Bryan Johnson, our TV columnist Bethan Ackerley selects her favourite science and technology documentaries of the year to date