Astronomers studying the rare supernova SN 2021yfj discovered material from one of the deepest layers of a dying star, providing a rare look at its hidden interior. The finding confirms key theories about how massive stars forge the elements that help build planets, worlds, and life.

Astronomers have glimpsed the inner structure of a dying star in a rare kind of cosmic explosion called an “extremely stripped supernova.”

In a paper published in Nature, Steve Schulze of Northwestern University in the United States and colleagues describe the supernova 2021yfj and a thick shell of gas surrounding it.

Their findings support our existing theories of what happens inside massive ...

Eating your greens could be the secret to breathing easier, with a new study from Edith Cowan University (ECU) revealing that people who eat more vitamin K1-rich foods such as leafy green vegetables may lower their risk of chronic lung disease. The paper is published in The American Journal of Clinical Nutrition.

Researchers from ECU’s Nutrition and Health Innovation Research Institute looked at the two main forms of vitamin K in our diet: K1, found in foods like spinach, kale and broccoli, and K2, found in meat, eggs and dairy.

They discovered that those who ate the most vitamin K1 were less likely to develop chronic obstructive pulmonary disease (COPD).

Almost half a million Australians have COPD, a life-threatening, worsening lung condition that makes it hard to breathe.

Agentic workflows are artificial intelligence-powered software systems that chain together multiple models and external tools to tackle complicated tasks, like analyzing a video and answering questions about it. But the way these highly fragmented systems are designed and deployed often causes inefficiencies that can lead to wasted computation, energy and cost.

To improve efficiency, researchers from MIT and Microsoft developed an intelligent system that streamlines the process of designing agentic workflows and automatically optimizes how those workflows are implemented. With this new method, a developer can describe what they want the agentic workflow to do in plain language, without needing to specify all the details of their application in advance.

The system automatically f...

A bizarre wobbling asteroid revealed by NASA’s Lucy mission is exposing hidden clues about ancient water, cosmic collisions, and the origins of the solar system. NASA’s Lucy spacecraft discovered that asteroid Donaldjohanson is a wobbling, peanut-shaped relic born from a violent collision and slowly reshaped by the subtle force of sunlight...