The global failure to push PrEP is hindering the fight against HIV
1 January 2020
The UN set a target of 3 million people on the HIV prevention drug PrEP by 2020 – but lingering prejudice and sheer ignorance of its existence mean we're nowhere near
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Premium
Our Veganuary study is just the latest self-experiment
1 January 2020
When you want to investigate the impact of giving up alcohol or meat and dairy, you sometimes need to become a lab rat. New Scientist staff are always happy to oblige
Are dark matter and dark energy related in anything apart from name?
1 January 2020
There is no law of physics dictating that dark matter and dark energy can’t be connected, and it is natural to wonder about it, writes Chanda Prescod-Weinstein
Misunderstanding the vulva may be leading to pain after labiaplasties
30 December 2019
A more detailed understanding of genital nerves may explain why some people experience pain and loss of sensation after having vulval surgery
Four great waves of animals have spread out from the tropics
29 December 2019
The tropics are the most biodiverse regions on Earth. Now there is evidence that they are also the main source of evolutionary innovation and diversity
Some types of endometriosis may be present from birth
29 December 2019
A new understanding of the origins of endometriosis suggests that there may be different subtypes of the condition that could benefit from different treatments
Wearing shoes from a young age makes your ankles less flexible
28 December 2019
People who habitually wear shoes have longer ankle bones, giving them less flexible ankle joints, compared with people who mostly go barefoot
![NNT/LASOLV [Science and Core Technology Laboratory Group]](https://images.newscientistbeta.com/wp-content/uploads/2019/12/18143630/reworkedcomputer.jpg)
A massive optical computer being built could outpace quantum computers
28 December 2019
A machine made of a 5 kilometre-long coil of fibre optic cable squeezed into a box a few metres across could give quantum computers a run for their money on certain tasks
Conservationists are ignoring climate change, risking mass extinctions
27 December 2019
Efforts to save many endangered animals from extinction are doomed to fail as conservationists are not taking climate change into account
Oil spills could be cleaned up by giving local microbes extra genes
24 December 2019
Equipping local bacteria with enzymes for breaking down hydrocarbons could be a much-needed cheap and eco-friendly way to tackle oil spills
