Headlines

Electyrolyzer experiment designated ready-to-fly by NASA

A Southwest Research Institute and University of Texas at San Antonio experiment has passed a critical NASA review, designating it ready for parabolic flight testing. The two institutions will evaluate the performance of a patent-pending electrolyzer, the Mars Atmospheric

Coffee may protect your heart but energy drinks could harm it

For most adults, a daily caffeine habit may be safer for the heart than many people assume. A new American Heart Association review found that up to 400 milligrams of caffeine a day, roughly three to five cups of regular black coffee, is generally safe and may even be linked to

Leveraging social expectation for charitable donations

Avoiding guilt is a powerful motivator for charitable giving, according to a study in PNAS Nexus. Masahiko Haruno and colleagues ran two experiments to determine the most effective psychological framing to encourage donations to WaterAid, an NGO working to provide clean water

Universal patterns govern global fertility decline

By examining 200 years of demographic data from 237 countries and territories, Kenji Itao, of the RIKEN Center for Brain Science in Japan, discovered that universal mathematical laws describe how fertility declines as societies develop, providing a new framework for

Quantum sensing microscope illuminates transistor design

Artificial intelligence faces an energy crisis stemming from a physical traffic jam inside modern computer chips. Processors must continually shuffle data, such as the billions of parameters in complex models, between separate computing and memory nodes. This traffic jam, known

The 'forgotten children' of sexual abuse in family settings

When a child has been sexually abused by a family member, post-disclosure interventions prioritize the child who was victimized. Siblings who were not directly abused can also be deeply affected. New research from McGill University finds that siblings are nevertheless routinely