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Phys.org / Researchers identify class of 'oddball' meteorite that killed the dinosaurs

A rare CO chondrite meteorite was the probable impacter that struck Earth 66 million years ago, wiping out 75% of Earth's species, including nonavian dinosaurs. These findings are published in Science Advances. Researchers ...

Jul 17, 2026
Medical Xpress / Blood vessels guide immune cells to metastases

It has long been suspected that endothelial cells, the specialized cells lining the inner walls of blood vessels, play a key role in determining how the body's immune system responds to tumors. Researchers at the German Cancer ...

Jul 20, 2026
Tech Xplore / Study highlights how micro-transfer printing can lead to advanced silicon photonics

The rapid growth of artificial intelligence and related computing infrastructure has exposed the limited bandwidth of conventional electrical interconnects in integrated circuits as a major bottleneck to system performance. ...

Jul 20, 2026
Medical Xpress / Drug-resistant gonorrhea on the rise in Europe, ECDC warns

Alongside growing evidence of the domestic spread of such resistant strains in Europe over the past two years, this poses a significant challenge for future treatment options for one of the most common sexually transmitted ...

Jul 20, 2026
Phys.org / Q&A: How do federal taxes impact local schools and services?

Increases to the standard federal tax deduction implemented in 2018 were made permanent a year ago, and researchers are beginning to understand the downstream effects on state and local governments. The increased deduction ...

Jul 20, 2026
Medical Xpress / Pandemic treaty talks roll on into September

Countries failed to find a breakthrough after a seventh round of talks aimed at finalizing the missing piece of a pandemic treaty, the World Health Organization said Monday.

Jul 20, 2026
Medical Xpress / New research identifies challenges to human rights for people with disabilities during lockdown

Australia's health care system aims to protect society's most vulnerable and hidden people, including those with disabilities.

Jul 20, 2026
Medical Xpress / Second death reported in Legionnaires' disease outbreak in New York City

A second person has died in connection with an outbreak of Legionnaires' disease in New York, the New York City Health Department announced Saturday.

Jul 20, 2026
Medical Xpress / Alcohol, sex and violence: A dangerous cocktail that makes young women vulnerable to HIV

South Africa has the largest HIV epidemic in the world, with adolescent girls and young women ages 15–24 at the highest risk of getting HIV. HIV prevalence among girls and women in this age group is roughly double that of ...

Jul 20, 2026
Tech Xplore / Analysis reveals exponential increase in e-bike injuries in California

Researchers at the University of California San Diego have found that injuries involving electric bicycles, or e-bikes, have increased dramatically across California, rising from just two reported collisions in 2018 to 1,506 ...

Jul 20, 2026
Phys.org / Aboriginal people harvested this native grass for millennia: Scientists find an odd trait in its DNA

Seen from the air, Channel Country resembles a vibrant, vast tapestry, with a network of waterways crisscrossing the land. Spread across more than 280,000 square kilometers (108,000 square miles) in outback Australia, it ...

Jul 17, 2026
Tech Xplore / Scientists create interactive screens that can appear on demand

Imagine reaching for a record or glancing at a map and seeing a display bloom from a small box, offering interactive guidance—and then vanishing moments later. A new device, inspired by science fiction and designed by computer ...

Jul 17, 2026