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Feedback, always on the hunt for absurd units of measurement, is delighted by recent attempts to convey the 406,771 kilometres that the Artemis II crew travelled from Earth

Discovering he is getting old before his time, David Cox tries to lower his biological age by changing his diet in a helpful new book, The Age Code, says Graham Lawton

The rise of a new generation of radiotherapies means we will soon need much greater quantities of radioactive atoms. That's why companies are scrambling to refine them from all manner of radioactive waste

A robot built by Sony AI is rapidly learning how to beat the world's very best table tennis players

Exercise has been touted as a tool for managing and treating long covid, but much of the evidence has neglected one of its most debilitating symptoms: post-exertional malaise

Simon Singh's exploration of mathematical proof – in particular Pierre de Fermat's last theorem – remains an absolute treasure, almost three decades after it was first published

A final-stage trial has started of an mRNA vaccine against the bird flu strain infecting many animals – and occasionally people – worldwide

Most of Titan’s surface is oddly flat and smooth, and it may be because it is coated by as much as a metre of fluffy organic material that snowed down from the icy moon’s thick atmosphere

Some seemingly simple sequences of multiplication and addition grow so quickly that they question the very foundations of mathematics. In doing so, they demand a whole new level of logic

Some seemingly simple sequences of multiplication and addition grow so quickly that they question the very foundations of mathematics. In doing so, they demand a whole new level of logic

The ongoing conflict around the Strait of Hormuz has become a situation in game theory known as a war of attrition. The maths behind it can help explain what's going on, says Petros Sekeris

Experiment with nanodiamonds reveals that they are less rigid than other diamonds, adding to our understanding of how they could be used in new technologies

Filtering a protein that may cause sepsis out from the blood has shown promising signs for improving survival

An injured kea with just half a beak has used what's left as a weapon that gives him dominance over a captive colony of the birds

A traditional vaccine primes the immune system to build better defences. Researchers think we can do something similar to increase our resilience to the pressures and worries of life

Stress is linked to many of our biggest killers, but a growing body of research suggests that certain types can sharpen the mind and strengthen the body. Here’s how to find your perfect dose

“I’m stressed” is a phrase that many of us use, but now there are ways to shed light on how stressed you actually are

Pushing against years of scepticism, an analysis suggests quantum computers may offer real advantages for running machine learning and similar algorithms in the near future

Most hospital patients don't brush their teeth regularly, but doing so could cut their risk of developing pneumonia during their stay

Most hospital patients don't brush their teeth regularly, but doing so could cut their risk of developing pneumonia during their stay