Artificial light from major coastal cities can disrupt the nighttime biology of sharks, according to new research that provides the first-ever measurements of melatonin—a hormone tied to biological rhythms—in wild sharks.
In South and West Dallas, initiatives like Restorative Farms have turned vacant lots into hubs for fresh produce, job training, and sustainable practices such as hydroponics—helping combat food deserts and build local food networks. More complex than small community gardens, urban farms can help tackle food insecurity and create jobs, especially in underserved areas. But systemic challenges, such as funding gaps and overcoming environmental and soil contamination, can make sustainability challenging.
A new analysis shows that the Pacific Northwest's mature and old-growth forests are most at risk of severe wildfire in areas that historically burned frequently at lower severity. The study by scientists at Oregon State University and USDA Forest Service Research & Development is important because those forests are culturally, economically and ecologically significant, supporting biodiversity while storing vast amounts of carbon, and they are under increasing threat of stand-replacing wildfire.
A new paper proposes a systems-level framework for evaluating the trustworthiness of research findings across methods and approaches. The paper, titled "A Framework for Assessing the Trustworthiness of Research Findings," is authored by a multidisciplinary group of research leaders with expertise in metascience, research integrity and assessment, and science communication.
Picture a spacecraft returning to Earth after a long journey. The vehicle slams into the planet's atmosphere at roughly 17,000 miles per hour. A shockwave erupts. Molecules in the air are ripped apart, forming a plasma—a gas made of charged particles that can reach tens of thousands of degrees Fahrenheit, many times hotter than the surface of the sun.
When snow blankets the landscape, it may seem like life slows down. But beneath the surface, an entire world of activity is unfolding.
Plastic pollution is causing severe problems worldwide. However, negotiations at the United Nations in Geneva last August did not result in the expected global plastics treaty. On 7 February 2026, the Intergovernmental Negotiating Committee (INC) on Plastic Pollution will reconvene in Geneva to elect a new chairperson. In order to secure an agreement, the new chairperson must urgently reform INC procedures, argue researchers.
NASA said Tuesday its next crew rotation to the International Space Station could be delayed after SpaceX announced it was grounding flights of its Falcon 9 rocket to investigate an unspecified issue.
Imagine enjoying a tasty dinner alone at home—you may freely indulge without worrying about others. Now imagine sharing the same meal with friends or colleagues: depending on the social context, you may find yourself eating more carefully, adapting your food choices, restraining yourself or competing for portions, and following social norms in conversation and table manners. Social environments influence even the simplest decisions—not only in humans, but also elsewhere in the animal kingdom.
In late January, the gold price reached an all-time peak of around US $5,500 (£4,025). January 30 saw one of the largest one-day falls in prices, which sank by nearly 10% after hitting a record high only the day before.
