Dental problems often arise or get worse during pregnancy, and a new study hints that rapid changes to the oral microbiome at this time could be at least partly to blame
Supermassive dark matter stars may be lurking in the early universe
Stars powered by dark matter instead of nuclear fusion could solve several mysteries of the early universe, and we may have spotted the first hints that they are real
Origin story of domestic cats rewritten by genetic analysis
Domestic cats originated in North Africa and spread to Europe in the past 2000 years, according to DNA evidence, while in China a different species of cat lived alongside people much earlier
Physicists have worked out a universal law for how objects shatter
Whether it is a cube of sugar or a chunk of a mineral, a mathematical analysis can identify how many fragments of each size any brittle object will break into
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Deadly fungus makes sick frogs jump far, possibly to find mates
Chytrid fungus is a scourge to global amphibian populations, but before it kills some frogs, it can produce symptoms that may help the infected animals find mates and spread the fungus further
Why dark matter is still one of the biggest open problems in science
We can’t see dark matter directly, so studying it pushes the boundaries of our creativity as scientists. How exciting, says Chanda Prescod-Weinstein
Why memory manipulation could be one of humanity’s healthiest ideas
It might sound like dystopian science fiction, but discovering how to reshape memories responsibly is helping us to heal the brain from within, says Steve Ramirez
The 13 best popular science books of 2025
Women’s hidden extra work, positive tipping points and new thinking on autism – there’s much to chew on in this year’s best reads, says Liz Else
Monthly injection could replace daily steroid pills for severe asthma
Daily steroid pills are often necessary for severe cases of asthma, but they raise the risk of several serious conditions. Now, scientists have shown that a monthly antibody injection can eliminate the need for the pills
Easter Island statues may have been built by small independent groups
Mapping of the main quarry on Easter Island where giant statues were carved has uncovered evidence that the monuments may not have been created under the direction of a single chief