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Physics

Swirly lasers can control an ungovernable cousin of magnetism

Short pulses of light that impart rotation on a material's atoms can be used to switch a property called ferroaxiality, which could let us build very stable and efficient memory devices

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A network of nerves (white) throughout the ovary of a mouse (left) and in a fragment of human ovary (right), alongside eggs (green). A growing follicle containing an egg is shown in magenta in the human ovary

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Hidden ecosystem of the ovaries plays a surprising role in fertility

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Environment

Top 250 oil and gas firms own just 1.5% of the world's renewable power

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The skull of King Richard III

Humans

King Richard III's oral microbiome hints he had severe gum disease

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Surgeons carrying out the pig liver transplant at the First Affiliated Hospital of Anhui Medical University, China, in May 2024

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Pig liver transplant into a living person edges it closer to the norm

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Perched on a narrow passage, ESA astronaut Marco Sieber stops for a moment to admire the heart of the cave he is set to explore. His journey into the deep is part of ESA?s CAVES training that prepares astronauts for the challenges of spaceflight both as individuals and as a team. Just like in space, the cave imposes isolation, confinement and limited supplies. For four days, an international crew of astronauts descended underground to live and work together, cut off from the outside world. Marco shared the expedition with NASA?s Jasmin ?Jaws? Moghbeli, Makoto Suwa from Japan?s space agency JAXA and Mohammad Al Mulla from MBRSC, the Emirati space agency. Marco?s role for the first two days and nights was to scout the 3.5 km long cave in the Italian Apennines, staying focused for hours on end under real exploration conditions. He was the first one into the unknown. The use of artificial light in constant darkness alters the perception of time and of colour. Beyond his skills as a medical doctor, his fellow explorers describe him as adventurous and humble, always curious to learn new things. Together with Jasmin, he was in charge of mapping the cave, choosing the best path and reporting their progress to the ground. All roles were swapped halfway through the expedition. The team of ?cavenauts? navigated sloping and uneven terrain, keeping situational awareness at all times. They overcame vertical drops of 20 metres using newly acquired rope climbing skills and organised the campsite that became their home. Over four dark days, they discovered a new world and new things about themselves and each other.

Space

See an astronaut prepare for spaceflight by journeying through a cave

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Physics

Electrons inside graphene have been pushed to supersonic speeds

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Technology

Memory chips just 10 atoms thick could vastly increase capacity

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Space

The moon's largest crater didn't form in the way we thought

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Selfish sperm see older fathers pass on more disease-causing mutations

Older men are more likely to pass on disease-causing mutations to their children because of the faster growth of mutant cells in the testes with age

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Chemistry

Nobel prize in chemistry awarded for work on molecular architecture

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There are five types of sleep – here's what that means for your health

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Chemistry

Biodegradable plastic made from bamboo is strong and easy to recycle

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Physics

Nobel prize for physics goes to trio behind quantum computing chips

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