New Scientist Space - Cosmology

There is no evidence a herbal drink promoted by the president of Madagascar as a cure for covid-19 is effective, according to the head of the World Health Organization in Africa

An extinct Hawaiian volcano called Pūhāhonu is the largest on Earth, with a volume twice that of Mauna Loa, the next largest contender

The latest coronavirus news updated every day including coronavirus cases, the latest news, features and interviews from New Scientist and essential information about the covid-19 pandemic

Ventilation must be improved in buildings and aeroplanes to reduce the risk of covid-19 spreading via the air, according to scientists and safety experts

Tracing the shape of letters on the surface of the brain using an implant that electrically stimulates neurons enabled people who have lost their sight to “see” the letters

Imagining how four-dimensional objects would behave in our 3D world is hard, but an interactive simulation of how those objects move and interact could help

A woman who is colour-blind says she could see red berries in a green bush for the first time after receiving electroconvulsive therapy for depression

Mouse embryos injected with human stem cells grew for 17 days, creating chimeras with up to 4 per cent human cells, a step towards growing human organs for transplant

Heat-resistant algae made in a lab seem to protect coral from bleaching. They could help to save reefs if we fail to tackle global warming fast enough

The Ivanpah Solar Energy Facility is one of the largest solar thermal energy plants in the world. It is spread out over 14 square kilometres and can power 140,000 homes every year

The coronavirus pandemic may be the biggest crisis most of us have faced, but we can’t afford to tackle our crises one at a time and let politicians off the hook on climate change

From providing a green alternative to plastics to reducing methane emissions and sucking carbon dioxide out of the atmosphere, seaweed could be the secret ingredient we need to clean up our planet

Increasing carbon dioxide levels in the atmosphere may be boosting vegetation for now, but climate change is set to more than wipe out any gains, says James Wong

Hypertension affects one in four adults and is usually treated with medication, even though lifestyle changes can reduce blood pressure. Here's what you need to know

The latest coronavirus news updated every day including coronavirus cases, the latest news, features and interviews from New Scientist and essential information about the covid-19 pandemic

The European Space Agency's Solar Orbiter spacecraft was launched earlier this year to study the sun, but it could soon be flying through the tail of comet ATLAS and may be able to study the icy object

A growing number of case studies suggest that covid-19 is linked to a higher rate of preterm births, and the virus may be able to cross the placenta to a fetus

Trials of a $1 covid-19 testing kit that produces results in under 10 minutes are under way in Senegal. If it works, it could be a vital tool in the surrounding region

Countries are increasingly sending out home coronavirus self-testing kits. But can the results from swabbing your own nose and throat be trusted?

Anyone can learn to solve cryptic crosswords. For beginners, we've put together a handy guide to how cryptic clues work and the types of wordplay that might be involved