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6 articles from Guardian Unlimited Science

‘Beaver moon’ will feature longest partial lunar eclipse in centuries

Stargazers across all of North America can witness the phenomenon from Thursday night into Friday morningStargazers across North America can expect to be dazzled by a red-hued “beaver” full moon on Thursday night and into Friday morning, during the longest partial lunar eclipse in almost six centuries.Lunar eclipses happen when Earth blocks the sun’s light, which usually illuminates the...

Moonwatch: Nasa resumes work on lunar lander

Agency says human landing will not be possible until 2025 at the earliest after lawsuit delays projectNasa has resumed work on the lunar lander needed to return humans to the moon. The space agency voluntarily paused work on the Human Landing System (HLS) for several months after a lawsuit over the spacecraft’s development and manufacture.In April, Nasa awarded the $2.9bn HLS contract solely to...

Inside Delhi’s air pollution crisis

Over the past few weeks, a thick brown smog has enveloped Delhi. The pollution is so bad that the capital and surrounding states have shut schools and imposed work-from-home orders. Toxic air at levels 20 times higher than those deemed healthy by the World Health Organization has become a seasonal occurrence in India, causing about 1.6 million premature deaths every year. Madeleine Finlay speaks...

Poorer nations still lack access to world’s key antibiotics

Only 54 of 166 assessed treatments have policies aiding use by low-income countries, says non-profit groupThe world’s biggest drugs makers have pressed on in the fight against superbugs despite the pandemic, but millions of people in poorer countries, where the risk of drug-resistant infections is highest, are still missing out on key antibiotics.A report from the Access to Medicine Foundation,...

New HIV jabs taken two months apart hailed as huge step forward

Safe injectable antiretroviral drugs, approved by health bodies, ‘could lift burden of daily oral therapy’Thousands of people living with HIV in Britain are to be freed from the burden of taking daily pills, after health chiefs gave the green light for a revolutionary treatment by injection every two months.Draft guidance from the National Institute for Health and Care Excellence (Nice)...

Wearing masks ‘single most effective’ way to tackle Covid, study finds

Researchers said face coverings shown to reduce incidence of coronavirus by 53%Coronavirus – latest updatesSee all our coronavirus coverageMask-wearing is the single most effective public health measure at tackling Covid, reducing incidence by 53%, the first global study of its kind shows.Vaccines are safe and effective and saving lives around the world. But most do not confer 100% protection,...