Phys.org news

Phys.org / DNA origami vaccine rivals mRNA shots while being easier to store and manufacture

The COVID-19 pandemic brought messenger RNA (mRNA) vaccines to the forefront of global health care. After their clinical trial stages, the first COVID-19 mRNA vaccine was administered on 8 December 2020 and mathematical models ...

1 hour ago
Phys.org / Dolphin mass strandings in Patagonia linked to killer whales

In 2021 and 2023, hundreds of dolphins were stranded in shallow waters in San Antonio Bay in northern Patagonia. Some died, but many were returned safely to the sea. But what remained a mystery until now was how they ended ...

6 hours ago
Phys.org / Despite their contrasting reputations, bonobos and chimpanzees show similar levels of aggression in zoos

Chimpanzees have a reputation for being aggressive, while bonobos are often seen as their peaceful counterparts. This contrast has frequently been used to explain different sides of human nature. However, a new study by Utrecht ...

7 hours ago
Phys.org / Plants pause, play and fast-forward their growth depending on types of climate stress

Plants pause their growth during stress, then press play when conditions improve, helping them recover and live on to produce food, according to a new study published in New Phytologist. UBC researchers have pinpointed the ...

2 hours ago
Phys.org / Astronomers capture birth of a magnetar, confirming link to some of universe's brightest exploding stars

Astronomers have for the first time seen the birth of a magnetar—a highly magnetized, spinning neutron star—and confirmed that it's the power source behind some of the brightest exploding stars in the cosmos. The finding ...

9 hours ago
Phys.org / AI weather models show promise for hurricane forecasts, but new study finds key physical limitations

Artificial intelligence is rapidly transforming weather prediction, enabling forecasts that once required hours of supercomputing time to run in just minutes. But as AI tools play an expanding role in high-stakes hazard modeling, ...

2 hours ago
Phys.org / Golden lancehead genome reveals how genes responsible for venom toxins evolved

A research team led by scientists at the Butantan Institute in São Paulo, Brazil, has completed the most extensive genetic sequencing of a jararaca viper to date. The focus of the study was the genome of the golden lancehead ...

4 hours ago
Phys.org / Galaxy-group motion suggests slower expansion in our cosmic neighborhood

Two new studies have measured the expansion of the universe in our immediate cosmic neighborhood using a novel method that analyzes the motion of two nearby galaxy groups within their surrounding cosmic flow. The results ...

5 hours ago
Phys.org / Researchers use AI to develop RNA-based synthetic NAND switch in living cells

An interdisciplinary research team from two working groups at the Center for Synthetic Biology at TU Darmstadt has developed the first RNA-based genetic switch that precisely replicates the logical behavior of a NAND gate, ...

2 hours ago
Phys.org / Centuries of net-negative emissions are required to secure a safe climate future, two studies suggest

Two new studies conclude that stabilizing long-term climate risks will require sustained net-negative carbon dioxide (CO₂) emissions for centuries. Approaching the problem from distinct perspectives—legal and technological ...

4 hours ago
Phys.org / Titanium complexes cleanly edit the core skeleton of highly stable organic compounds

Multi-titanium hydrides can selectively snip the strong structural bonds of stable organic molecules called pyridines, RIKEN researchers have shown. This discovery could guide designing catalysts for applications in multiple ...

5 hours ago
Phys.org / Astronomers collect rare evidence of two planets colliding

Anastasios (Andy) Tzanidakis was combing through old telescope data from 2020 when he found an otherwise boring star acting very strangely. The star, named Gaia20ehk, was about 11,000 light-years from Earth near the constellation ...

5 hours ago