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Phys.org / ESA's Celeste broadcasts first navigation signal from low Earth orbit
The European Space Agency has achieved a European first with Celeste, successfully transmitting a navigation signal from low Earth orbit, following the launch of the mission's first satellites on March 28.
Phys.org / Report: Unhoused individuals want permanent housing, face steep financial barriers
As local governments and service providers search for the most effective ways to support people experiencing homelessness, a new report from Portland State University centers on problem solving in the experience of those ...
Phys.org / Artemis II: As humans return to the Moon, which of these 4 futures will we choose?
The four Artemis II astronauts who looped around the moon this week are expected to splash down soon. NASA's grand mission spells a return to human deep-space travel, with renewed interest in building a long-term moon base.
Phys.org / Chimpanzee empire falls apart in rare instance of division and deadly violence
The largest group of wild chimpanzees known to scientists has permanently split in two. In a study published in Science, researchers from the University of Texas at Austin and other institutions report the first clearly documented ...
Phys.org / Accounting expert says teams should avoid 'trading up' during NFL draft
Ahead of the NFL Draft's arrival in Pittsburgh on April 23, a West Virginia University professor is challenging one of football's most aggressive strategies and his data suggests teams are getting it wrong.
Medical Xpress / With navigating nematodes, scientists map out how brains implement behaviors
Animal behavior reflects a complex interplay between an animal's brain and its sensory surroundings. Only rarely have scientists been able to discern how actions emerge from this interaction. A new study in Nature Neuroscience ...
Phys.org / Mammal ancestors laid eggs—and this 250-million-year-old fossil proves it
A remarkable new discovery is shedding light on one of the greatest survival stories in Earth's history, and answering a decades-old scientific mystery. Lystrosaurus, a hardy, plant-eating mammal ancestor, rose to prominence ...
Medical Xpress / Should people over 75 continue colonoscopies?
The American Cancer Society recommends screening for colorectal cancer in adults beginning at age 45 and continuing through age 75. However, adults over the age of 75 with a history of precancerous polyps—also known as adenomas—are ...
Medical Xpress / Advanced CT scan analysis may help identify different forms of sarcoidosis
Researchers have identified a new method for analyzing chest CT scans that may help physicians better understand the different forms of sarcoidosis, a complex inflammatory lung disease that affects more than 150,000 people ...
Medical Xpress / Fixating on a 'magic number' of childcare hours misses what's most important for kids' development
Families with kids juggling full-time work may have been alarmed by media reporting this week, suggesting "too much" time in early childhood education and care could harm their child's development.
Phys.org / Why experts say now is the time to vaccinate US dairy cattle against bird flu
Bird flu—specifically H5N1—is no longer just a poultry problem in Asia. What started as a major United States outbreak, first in wildlife, then in poultry, and later in dairy cattle, is raising new concerns about food security, ...
Tech Xplore / AI is changing more than your writing—it may be shaping your worldview, say researchers
Use of ChatGPT, Claude and other large language models, or LLMs—what most people call "AI"—has surged since ChatGPT debuted publicly in 2022. Hundreds of millions of people now use these tools weekly, according to recent ...
