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New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

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Health

We failed to prevent omicron – can we stop future variants evolving?

There is a lot more that countries could be doing to reduce the risk of new coronavirus variants arising, but it won't be easy

Analysis

James Leidner spent three nights in a high-tech sleeping bag that unloads pressure in the brain by suctioning fluids into the lower body. NASA hopes the sack can be used by astronauts in space to alleviate the vision problems they commonly endure during longer missions.

Space

High-tech space sleeping bag could stop vision problems in astronauts

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$A healthcare worker performs laboratory tests which detect immunoglobulin class G (IgG) antibodies to SARS-CoV-2 virus in blood at a medical centre of the INVITRO private healthcare company. Peter Kovalev/TASS (Photo by Peter Kovalev\TASS via Getty Images)$

Health

How likely are you to get reinfected now that omicron is spreading?

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Women at the gym

Health

Paying people to return to the gym is best way to incentivise exercise

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World Health Organization's technical lead on the coronavirus pandemic, Maria van Kerkhove gestures during an interview with AFP in Geneva on October 13, 2020. (Photo by Richard Juilliart / AFP) (Photo by RICHARD JUILLIART/AFP via Getty Images)

Health

Maria Van Kerkhove interview: What we know about omicron so far

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Margaret Keenan was vaccinated at University Hospital, Coventry, on 8 December, 2020

Health

2021 in review: Billions of covid vaccinations given unequally

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Omicron may spread much more easily at social functions than other variants

Health

Omicron variant may make Christmas party infection risk much higher

Analysis

A technician prepares a sample

Health

Investigation fails to replicate most cancer biology lab findings

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A health worker speaks with a driver in the drive-thru area of the Testaro Covid-19 mobile testing site outside Richmond Corner shopping center in the Milnerton district of Cape Town, South Africa, on Thursday, Dec. 2, 2021. South Africa announced the discovery of a new variant, later christened omicron, on Nov. 25 as cases began to spike and the strain spread across the globe. Photographer: Dwayne Senior/Bloomberg via Getty Images

Health

Omicron looks set to cause a huge wave of covid-19 around the world

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Cataract surgery

Health

Older people who get cataracts removed have lower dementia risk

People who have cataracts can reduce their risk of developing dementia by about 30 per cent by undergoing surgery to restore their sight, although it’s not clear why

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Health

Grape seed chemical allows mice to live longer by killing aged cells

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Health

Night-shift workers who eat only in the day may cut diabetes risk

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Health

Multigenerational households a factor in covid-19 ethnic disparities

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Health

Why has the UK been so slow to vaccinate children against covid-19?

Insight