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Brain scans reveal the areas that light up when we look at food

Lun, 19/09/2022 - 03:00
Two regions in the ventral visual cortex of the brain are selectively activated by images of food, reflecting the importance of food for human survival and culture

Covid-19 pandemic linked to early onset of puberty in some girls

Sáb, 17/09/2022 - 03:30
Several studies suggest that the number of girls starting puberty early has more than doubled amid the coronavirus outbreak - and experts are unsure exactly why

Liquid robot can split into tiny droplets and reform into a blob

Vie, 16/09/2022 - 14:00
A robot made from magnetic fluid can be made smaller, thinner, or directed to break up with special magnets, which could be useful for delivering drugs into the body

Closest black hole to Earth is just 1500 light years away

Vie, 16/09/2022 - 12:11
A black hole with a mass about 10 times that of the sun is thought to be the closest to Earth discovered so far. It is orbited by a star that could host planets, from which the black hole would be visible in the sky

Tiny static electricity generators could produce power from waves

Vie, 16/09/2022 - 11:00
A smart way of putting together lots of nanogenerators that exploit static electricity to generate a current could open up a new kind of wave power

Astronomy Photographer of the Year photos are out of this world

Vie, 16/09/2022 - 07:08
These images are some of the winning and shortlisted entries for this year’s competition, organised by the Royal Observatory in London

100-year-olds with signs of Alzheimer's in the brain are still sharp

Vie, 16/09/2022 - 07:00
Amyloid plaques and tau tangles tend to accumulate in the brain as we get older, but at the most advanced ages they don't correlate with cognitive symptoms

Female emission at orgasm confirmed to release fluid from the bladder

Vie, 16/09/2022 - 06:00
Some women release a large amount of clear liquid from the urethra at orgasm, a process that is distinct from female ejaculation, which involves the release of a small amount of milky liquid. Now the source of both liquids has been identified

Major fireball seen over UK was caused by chunk of space rock

Vie, 16/09/2022 - 05:02
Planetary scientists have been racing to establish the origin of a bright fireball seen over parts of the UK on 14 September – the evidence now points to it being a meteor rather than re-entering space debris

Ig Nobel prizes 2022: The unlikely science that won this year's awards

Jue, 15/09/2022 - 18:01
From how constipation affects the mating prospects of scorpions to an analysis of what makes legal documents unnecessarily difficult to understand, this year's Ig Nobel prizes, for “achievements that first make people laugh, then make them think”, are unveiled

Bubbles in water have been caught doing backflips for the first time

Jue, 15/09/2022 - 16:55
After colliding with a tilted wall, air bubbles in water execute a backflip and hit the wall for a second time because they get caught in their own wake. These acrobatics could be harnessed for cleaning

The Perseverance rover is finding more and more organic matter on Mars

Jue, 15/09/2022 - 16:50
NASA’s Perseverance rover has found a glut of organic molecules on Mars, as well as other materials that make the dry river delta it is now exploring perfect for hunting for signs of life

Does squishing invasive lanternflies really help stop their spread?

Jue, 15/09/2022 - 15:44
Several states in the eastern US encourage residents to stomp on spotted lanternflies that threaten grapevines and other crops. But smooshing isn't a long-term solution

Farmers in Bangladesh pump so much water it may help reduce floods

Jue, 15/09/2022 - 14:00
Thanks to millions of farmers’ irrigation systems in Bangladesh, there is more space for monsoon water to go straight into aquifers, possibly mitigating flooding

Infections that need hospital treatment may increase Alzheimer’s risk

Jue, 15/09/2022 - 14:00
An analysis of Swedish health records shows that people diagnosed with Alzheimer’s before age 60 are more likely to have been treated for an infection in hospital more than five years earlier

Saturn's rings could have come from a destroyed moon named Chrysalis

Jue, 15/09/2022 - 14:00
The origins of Saturn’s rings, its unusual tilt and the strange tie between the planet and Neptune have been mysteries for years. They could all be solved by the destruction of a moon

Radical lupus treatment uses CAR T-cell therapy developed for cancer

Jue, 15/09/2022 - 11:00
A sophisticated technique that involves genetically modifying a person’s immune cells has put five people with severe systemic lupus erythrematosus (SLE) into remission

DNA clocks suggest ageing is pre-programmed in our cells

Jue, 15/09/2022 - 09:47
Looking at DNA in a tissue sample is now all you need to accurately work out the age of almost any mammal, and this reveals something fundamental about ageing

Major fireball seen over UK was probably space junk returning to Earth

Jue, 15/09/2022 - 08:08
Planetary scientists are racing to establish the origin of a bright fireball seen over parts of the UK on 14 September – the evidence so far points to it being space junk rather than a meteor

Wound dressing made of 3D-printed skin could help people with diabetes

Jue, 15/09/2022 - 03:00
People with diabetes often find that cuts and bigger wounds heal very slowly, but a biodegradable dressing made using 3D-printed skin could help