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One in three adults have non-alcoholic fatty liver disease – often without knowing. Now we understand what causes this stealthy condition and how to reverse it

A modern butchery experiment using replicas of Stone Age tools raises new questions about how often prehistoric peoples hunted large animals such as bison or mammoths

The next time a total solar eclipse will be visible from the UK is decades away, but there are other places nearby that will experience one sooner

A study of more than 220,000 people found that cannabis use during pregnancy was associated with their children having roughly twice the risk of ADHD, autism and intellectual disability

The eclipse is about to begin. Totality will arrive at Mexico’s west coast around 11.07am local time, moving east until it leaves Newfoundland, Canada, around 5.16pm there

From building an eclipse viewer to using the sun to pop balloons, here's a child-friendly activity guide for April's eclipse

Stephen Hawking and Jacob Bekenstein calculated the entropy of a black hole in the 1970s, but it took physicists until now to figure out the quantum effects that make the formula work

California’s rare sequoias rely on high heat to disperse their seeds, and efforts to reduce the size of wildfires may be damaging their ability to reproduce

One total solar eclipse changed physics forever – and even to this day these celestial phenomena are astonishing viewers and teaching us crucial lessons about the universe

A popular idea links primates living on the ground with a tendency for right-handedness, but findings from urban langurs in India cast doubt on the idea

Mathematics suggested that time travel is physically possible – and Kurt Gödel proved it. Mathematician Karl Sigmund explains how the polymath did it

Diving at One Tree Island in one of the most highly protected parts of the Great Barrier Reef reveals the shocking extent of the latest mass bleaching event

Can cultivating positive behaviours and tweaking our lifestyles lead to healthier, happier lives – even longer lives? Discover the daily choices that may make the difference in a fascinating new book

Combining PSA blood tests with MRI scans is making the screening less harmful, but it still should be targeted only at high-risk groups, such as men who are Black or have a family history of prostate cancer, says a new report

One person in the US has contracted bird flu after being exposed to dairy cows that have the virus, but experts say there is no immediate threat of a wider outbreak in people

The standard model of cosmology says that the strength of dark energy should be constant, but tentative hints are emerging that it may have weakened recently

Where in our body we feel the physical sensation of hearing music seems to depend on how surprising the piece's chords are

When asked to imagine a hypothetical sexual encounter, bisexual women anticipated that they would be more likely to orgasm with another woman than with a man

A network of sensors stretching from San Francisco to Sonoma county’s vineyards shows that electric vehicles have helped lower carbon emissions by almost 2 per cent per year within the Bay Area

Protected zones are meant to let adult fish populations recover from overfishing, but an analysis of 111 sites in the Caribbean finds that this is not happening in most cases