Quest to create viable human sex cells in lab progressing rapidly, with huge implications for reproduction

Scientists are just a few years from creating viable human sex cells in the lab, according to an internationally renowned pioneer of the field, who says the advance could open up biology-defying possibilities for reproduction.

Speaking to the Guardian, Prof Katsuhiko Hayashi, a developmental geneticist at the University of Osaka, said rapid progress is being made towards being able to transform adult skin or blood cells into eggs and sperm, a feat of genetic conjury known as in-vitro gametogenesis (IVG).

Owning dog or cat could preserve some brain functions as we age, study says

The Guardian

2025-07-05 05:00

Fish or bird ownership showed no significant link to slower cognitive decline in study with implications for ageing societies

As global population ages and dementia rates climb, scientists may have found an unexpected ally in the fight against cognitive decline.

Cats and dogs may be exercising more than just your patience: they could be keeping parts of your brain ticking over too. In a potential breakthrough for preventive health, researchers have found that owning a four-pawed friend is linked to slower cognitive decline by potentially preserving specific brain functions as we grow older.

‘The vehicle suddenly accelerated with our baby in it’: the terrifying truth about why Tesla’s cars keep crashing

The Guardian

2025-07-05 05:00

Elon Musk is obsessive about the design of his supercars, right down to the disappearing door handles. But a series of shocking incidents – from drivers trapped in burning vehicles to dramatic stops on the highway – have led to questions about the safety of the brand. Why won’t Tesla give any answers?

It was a Monday afternoon in June 2023 when Rita Meier, 45, joined us for a video call. Meier told us about the last time she said goodbye to her husband, Stefan, five years earlier. He had been leaving their home near Lake Constance, Germany, heading for a trade fair in Milan.

Meier recalled how he hesitated between taking his Tesla Model S or her BMW. He had never driven the Tesla that far before. He checked the route for charging stations along the way and ultimately decided to try it. Rita had a bad feeling. She stayed home with their three children, the youngest less than a year old.

The Guardian view on the public’s dinomania: passion for palaeontology endures through the ages | Editorial

The Guardian

2025-07-04 16:53

From blockbuster movies like Jurassic World Rebirth to documentary series, the appetite for these ancient creatures appears inexhaustible

On-screen discussions of DNA and off-screen scientific consultants notwithstanding, no one goes to see a Jurassic Park movie for its realism. Yet one of the less convincing moments in Jurassic World Rebirth, the latest in the franchise, is unrelated to oversized velociraptors. It’s the palaeontologist Dr Henry Loomis complaining of shrinking public interest in his field.

This spring, the BBC revived its 1999 hit series Walking With Dinosaurs. Not a week goes by without headlines announcing the discovery of a new species or new theories on how they behaved. Publishers produce an endless stream of dino-related fact and fiction, particularly for children. Palaeontology – at least when focused on the dinosaurs of the Mesozoic, or our hominin forebears – has long exerted an extraordinary hold on the public imagination.

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‘Close to perfect’: readers’ favourite games of 2025 so far

The Guardian

2025-07-04 15:21

Whether Nazi-punching your way through an Indiana Jones sequel or losing yourself in a beautiful fantasy world, you told us your best video game experiences of the first half of the year
• The best video games of 2025 so far

Enshrouded is a beautiful combination of Minecraft, Skyrim and resource gathering that makes it at least three games in one. My daughter told me I would love it and I ignored her for too long. I’ve tackled Elden Ring, but much prefer the often gentler combat of Enshrouded. It sometimes makes me feel like an elite fighter, then other times kicks my arse in precisely the right measures.

Text therapy: study finds couples who use emojis in text messages feel closer

The Guardian

2025-07-04 15:00

Using emojis in text messages enhances connection and fun in close personal relationships, US study finds

The secret to a good relationship may be staring smartphone users in the face.

A new study published in the journal Plos One found that using emojis in text messages makes people feel closer and more satisfied in their personal lives.

[$] Python audio processing with pedalboard

LWN

2025-07-04 13:18

The pedalboard library for Python is aimed at audio processing of various sorts, from converting between formats to adding audio effects. The maintainer of pedalboard, Peter Sobot, gave a talk about audio in Python at PyCon US 2025, which was held in Pittsburgh, Pennsylvania in May. He started from the basics of digital audio and then moved into working with pedalboard. There were, as might be guessed, audio examples in the talk, along with some visual information; interested readers may want to view the YouTube video of the presentation.

Security updates for Friday

LWN

2025-07-04 13:17

Security updates have been issued by AlmaLinux (.NET 9.0, container-tools:rhel8, ghostscript, git-lfs, grafana-pcp, pandoc, perl-FCGI:0.78, ruby:2.5, ruby:3.3, tigervnc, and varnish:6), Debian (jpeg-xl and mediawiki), Fedora (darktable, guacamole-server, mingw-gdk-pixbuf, and yarnpkg), Oracle (gimp, kernel, libsoup, python-tornado, python3.12, and thunderbird), Slackware (php), SUSE (libgepub), and Ubuntu (libtpms, linux-aws-5.15, linux-intel-iot-realtime, and linux-bluefield).