Scientists discover first algae that can fix nitrogen — thanks to a tiny cell structure

A Braarudosphaera bigelowii cell magnified 1,000-fold.Credit: Tyler Coale Researchers have discovered a type of organelle, a fundamental cellular structure, that can turn nitrogen gas into a form that is useful for cell growth. The discovery of the structure, called a nitroplast, in algae could bolster efforts to genetically engineer plants to convert, or ‘fix’, their … Read more

scientists wake up to the mental-health toll of climate change

Every year for six years, Laureen Wamaitha hoped that her fields in Kenya would flourish. Every year, she’d see drought wither the crops and then floods wash them away. The cycle of optimism and loss left her constantly anxious, and she blamed climate change. “You get to a situation where you have panic attacks because … Read more

Bird flu outbreak in US cows: why scientists are concerned

A dairy worker in Texas has become infected with a strain of avian influenza similar to that infecting dairy cattle in several US states.Credit: Adam Davis/EPA-EFE/Shutterstock Researchers are closely monitoring the spread of a worrisome strain of avian influenza to cattle — and one person — at farms in six US states. These infections represent … Read more

what scientists are learning from Rwanda

Kigali, Rwanda The church at Ntarama, a 45-minute drive south of Rwanda’s capital, Kigali, is a red-brick building about 20 metres long by 5 metres wide. Inside are features seen in Catholic churches around the world: pews for congregation members, an altar, stained-glass windows and a cross adorning the entrance. Then there are the scars … Read more

Is IVF at risk in the US? Scientists fear for the fertility treatment’s future

A fertility treatment that has been used for 45 years is once again available in Alabama. In vitro fertilization (IVF) procedures in the state were halted after the Alabama Supreme Court ruled in February that embryos created using the technique have the same rights as children. A new state law protecting clinics from legal fallout … Read more

Japanese scientists close in on petabit-class submarine cable tech set to revolutionize Internet speeds — NEC and NTT managed to shuttle hundreds of terabits over thousands of kilometers thanks to a clever algorithm

To cope with the demand for international bandwidth almost doubling every two years, Japanese corporations NEC and NTT have successfully trialed a revolutionary submarine cable technology set to drastically enhance internet speeds under the sea.  The transoceanic-class experiment transmitted hundreds of terabits across a staggering 7,280km, a feat made possible through a sophisticated algorithm. NEC … Read more

How scientists are making the most of Reddit

Reddit’s many ‘subreddit’ communities offer channels for discussing science and are of interest to social-media scholars.Credit: Amy Lombard/New York Times/Redux/eyevine It has been almost 18 months since Elon Musk purchased Twitter, now known as X. Since the tech mogul took ownership, in October 2022, the number of daily active users of the platform’s mobile app … Read more

Scientists made a six-legged mouse embryo — here’s why

This six-legged animal isn’t an insect: it’s a mouse with two extra limbs where its genitals should be. Research on this genetically engineered rodent, which was published on 20 March in Nature Communications1, has revealed a way in which changes in DNA’s 3D structure can affect how embryos develop. Developmental biologist Moisés Mallo, at the … Read more