Orange light triggers more activity in brain areas linked to alertness than blue light - bolstering the idea that cells in the eye help reset our body clocks
All the latest on newscientist.com: big bench-top physics, ozone depleter mystery, advance Alzheimer's test, neuroscience of consciousness and more
This dazzling rainbow view of ice melting was captured by a photographer using a simple living room set-up that anyone can recreate
If you haven't got a CERN budget, don't despair: find the magic formula and you can recreate the most exotic cosmic objects in surprisingly humble settings (full text available to subscribers)
From brain-scanning experiments to self-aware robots, two books explain how far we've really come in the quest to crack consciousness
They promise equality of access to higher learning, but online courses will only succeed with better general education in place first, say two educationalists
New Zealand's abandonment of prohibition is a pivotal moment in the global debate over how to control recreational drugs
NASA astrophysicist Steve Howell is confident that a new method of aiming the crippled Kepler space telescope will convince the space agency to keep it alive
A slew of new studies suggest the climate is highly sensitive to carbon dioxide, and explain why some recent work has said the opposite. New Scientist explains
The Montreal Protocol has largely phased out CFCs, chemicals which damage ozone – just who could be releasing the four types now detected is unclear
A blood test can distinguish between people who will get Alzheimer's in the next two to three years and those who won't – but would people want to know?
Climate change is drowning Australia's surf, which could mean that by the end of the century, the number of big waves will be reduced by a third
The World Medical Association has written an open letter to Ugandan President Yoweri Museveni to express concern about the country's new law against homosexuality. The organisation says that the “notions, science, and ethics” behind the law—which punishes gay sex with life imprisonment—are incorrect, and urges the President to reverse the measure.
There are few cities in the world where the first thing you do on waking is check the air quality app on your mobile phone—even before switching off the alarm. Beijing is such a city. On Feb 25, Beijing had been shrouded in heavy smog and hazardous levels of respirable fine particulate matter (PM2·5) for 6 consecutive days. That morning the PM2·5 level read 383 μg/m3, which is 15 times the recommended safe WHO limit (25 μg/m3 for 24-h PM2·5), but not the worst reported in a week when levels soared to 500 μg/m3.
International Women's Day, this year themed Inspiring Change, falls on March 8. For more than a century, this event has marked women's achievements in a world where the sexes are far from equal in many countries. In promoting the education, health, and success of women, the Day has addressed the distressing but key topic of violence against women more than once.
“We can't afford a rogue President”, said one senior officer at the UK's Royal College of Physicians last week. His feeling was understandable. The College is one of the most powerful and influential professional organisations in British medicine. But the election of its President is a strange affair. Partly, it reflects the uncertainties of any democratic process. Candidates stand, they pitch their manifestos, and, based on a mix of rationalism and alchemy, a leader emerges. But the College faces a damaging democratic deficit.
This manifesto for transforming public health calls for a social movement to support collective public health action at all levels of society—personal, community, national, regional, global, and planetary. Our aim is to respond to the threats we face: threats to human health and wellbeing, threats to the sustainability of our civilisation, and threats to the natural and human-made systems that support us. Our vision is for a planet that nourishes and sustains the diversity of life with which we coexist and on which we depend.
Ukraine is once again at a political crossroads. Like many of the world's troubled nations, its present-day borders reflect historical events that paid little attention to the national identities of those involved, such as the westward expansion after World War 2 into what had been Polish territory, and Nikita Khrushchev's unexpected 1954 gift from Russia to Ukraine of Crimea. Just like Russia itself, which at different times has looked to the east or west, the people of Ukraine have struggled to come to terms with two different identities.
In The Lancet, Rebecca Ashby and colleagues report the results of a large pragmatic trial of a treatment for venous leg ulcers, in which they compare new two-layer compression hosiery with four-layer compression bandages, which are regarded as the standard care for venous leg ulcers. The investigators recorded no difference in the number of patients healed, and no difference in the trial's primary endpoint, median time to healing, between the two treatment groups—99 days (95% CI 84–126) with hosiery and 98 days (85–112) with compression bandages.