Men who do not produce sperm can’t be helped by existing fertility treatments, but a start-up is now claiming it can grow their sperm in the lab. Columnist Michael Le Page suspects this technique will have to be combined with gene editing if it is to help many men

Airstrikes on Tehran earlier this year emitted a plume containing almost 30,000 tonnes of sulphur dioxide that reached Asian countries

A rewrite of quantum mechanics that includes the force of gravity could finally achieve one of physicists’ biggest goals and reveal the ultimate fuzziness of time

There is currently no good way for astronauts in space to do laundry, but researchers may have finally come up with one: a bright purple jet of microbe-killing plasma

In the age of AI, instant answers to our questions are readily available. But columnist Helen Thomson finds that continuing to encourage those delicious flashes of insight that come from your own thoughts may be beneficial both for your everyday life and your long-term brain health

Despite being the closest planet to the sun, Mercury has thick deposits of ice at its poles, and now we may understand the events that formed them over just one Mercurian day

Tests with rodents suggest an mRNA vaccine in development offers protection against three strains of Ebola virus, including the one behind the current crisis

We all feel emotions like anger and disgust from time to time, but they seem to cause stronger bodily sensations when they're politically induced

Vaccine misinformation, nurse and doctor shortages and crowded living arrangements may be behind soaring rates of diphtheria in remote Indigenous communities in Australia

Life on the International Space Station may feel distant, but columnist Graham Lawton finds that studying how astronauts experience accelerated ageing could help us fight similar effects on Earth related to sedentary lifestyles, disrupted circadian rhythms and social isolation

Artificial intelligence built by OpenAI has cracked a decades-old conjecture by Paul Erdős, which mathematicians have hailed as a monumental moment for AI in mathematics

Some people experience vivid, incessant dreams that leave them feeling exhausted the next day, with researchers calling for this "epic dreaming" to be classed as a sleep disorder

Women appear cognitively normal for almost three years longer than men after their brains start to develop Alzheimer’s disease, making it harder to diagnose and preventing early treatment

Women experience a steady rise in body temperature from their teens to midlife, which may be useful for monitoring ageing and overall health

Previously classified photos and documents show the scientific work that went into the world's first atomic test in 1945 – a test that, just weeks later, would see nuclear bombs dropped in Japan

On a visit to the UK, Sydney-based reporter James Woodford visited an archaeological site that was on his bucket list – and experienced a very special moment as the sun set

Experiments hint that quantum mechanisms are vital to the machinery of life. Now researchers are exploring if these effects help to explain the success of an array of puzzling health treatments

Like covid-19 and mpox before it, the decision to relabel PCOS as polyendocrine metabolic ovarian syndrome is a welcome one – and reveals why a name is never just a name

There’s unexpected news of a fifth movie for one of the most underrated sci-fi reboots. Hurray, says New Scientist film columnist Bethan Ackerley

Feedback goes down a "moon warfare" rabbit hole and discovers that some forward-thinkers are making plans to counteract as-yet-hypothetical pirates in space