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A reanalysis of twin data from Denmark and Sweden suggests that how long we live now depends roughly equally on the genes we inherit, and on where we live and what we do

Shrinking sea ice has made life harder for polar bears in many parts of the Arctic, but the population in Svalbard seems to be thriving

Adults with kidney cancer who received faecal microbiota transplants on top of their existing drugs did better than those who had placebo transplants as their add-on intervention

Even given a set of possible quantum states for our cosmos, it's impossible for us to determine which one of them is correct

Many countries are debating whether to follow Australia and ban social media for younger teenagers. But with more robust evidence on its harms coming, we shouldn't be too hasty

While snakes and ladders is purely a game of chance, there is a way to add some strategy, says mathematician Peter Rowlett

Where is physics headed? No one knows for sure, but Beyond the Quantum by Antony Valentini is a striking new book that reminds us what a big idea really looks like, finds Jon Cartwright

The books, TV, games and more that New Scientist staff have enjoyed this week

Susan Wise Bauer's The Great Shadow investigates the effects of illness on individual lives and collective beliefs. It's a mixed bag, says Peter Hoskin

From health tech developers to influencers, our health is being monetised – and we need to be aware of what's going on, says Deborah Cohen

How much do you know about friction? Jennifer R. Vail's charming, if sometimes technical, "biography" of the force showcases its amazing and largely overlooked role in everything from climate change to dark matter, says Karmela Padavic-Callaghan

Feedback has been informed about a "global telepathy study" which is currently taking place, but isn't entirely convinced about its merits

The ubiquitous Epstein-Barr virus is increasingly being linked to conditions like multiple sclerosis and lupus. But why do only some people who catch it develop these complications? The answer may lie in our genetics

Thousands of years before the invention of compasses or sails, prehistoric peoples crossed oceans to reach remote lands like Malta and Australia. Doing so meant striking out in unknowable conditions. What do such crossings tell us about ancient minds?

A treasure trove of Cambrian fossils has been discovered in southern China, providing a window on marine life shortly after Earth’s first mass extinction event

Clumps of cells known as organoids are helping us to understand the brain, and the latest version comes equipped with realistic blood vessels to help the organoids live longer

Using a superconducting quantum computer, physicists created a large and complex version of an odd quantum material that has a repeating structure in time

The amount of rainfall in the southern Amazon basin has declined by 8 to 11 per cent since 1980, largely due to the impact of deforestation

The measles vaccine has prevented 60 million deaths since 2000. So why are so many children around the world missing out on it?

A newly discovered collection of neurons suggests the brain and heart communicate to trigger a neuroimmune response after a heart attack, which may pave the way for new therapies