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Students discovered an ultra-ancient star with almost no heavy elements, making it one of the most pristine ever found. Surprisingly, it appears to have formed in another galaxy before drifting into the Milky Way. A team of undergraduate students at the University of Chicago has identified one of the oldest known stars in the universe […]

Astronomers have finally identified the source of unusual X-rays from the bright star gamma-Cas, resolving a decades-long mystery. Astronomers have finally solved a decades-old puzzle surrounding the bright star gamma-Cas, identifying an unseen companion as the source of its unusual X-rays. This hidden object is pulling in material from the visible star, generating powerful high-energy […]

A massive star’s sudden transformation may signal an approaching supernova. One of the largest stars ever discovered has undergone a dramatic transformation, and scientists believe it may be nearing a violent end. New research led by Gonzalo Muñoz-Sanchez at the National Observatory of Athens, published in Nature Astronomy, finds that the enormous star WOH G64 […]

Researchers have identified a versatile enzyme capable of reshaping peptide-based drugs into more stable, longer-lasting forms. Chemistry researchers at the University of Utah have identified an enzyme called PapB that can “tie off” therapeutic peptides, which are protein-like drugs, into compact ring structures. This process is known as macrocyclization. According to new research, this approach […]

Depressive symptoms are common in people with asthma, but increasing evidence suggests they may be driven by biological processes that differ from those seen in major depressive disorder. Researchers from Hiroshima University in Japan, working with collaborators, have identified a biological difference in how depression appears in adults with asthma. Their study found that people […]

Depressive symptoms are common in people with asthma, but increasing evidence suggests they may be driven by biological processes that differ from those seen in major depressive disorder. Researchers from Hiroshima University in Japan, working with collaborators, have identified a biological difference in how depression appears in adults with asthma. Their study found that people […]

A common artificial sweetener may have more complex biological effects than previously thought. A widely used artificial sweetener may not be as biologically “inert” as once believed. Research has raised concerns that a little-known chemical linked to sucralose, the main ingredient in Splenda, can damage DNA and interfere with key processes in the body. Splenda […]

Hidden within ancient microbial structures, scientists have uncovered a partnership that may mirror one of life’s most transformative moments, the emergence of complex cells. Stromatolites may look like unremarkable, dark rock formations, but they are anything but lifeless. These structures, along with similar microbial mats, are built by layers of microorganisms that have been shaping […]

Hidden within ancient microbial structures, scientists have uncovered a partnership that may mirror one of life’s most transformative moments, the emergence of complex cells. Stromatolites may look like unremarkable, dark rock formations, but they are anything but lifeless. These structures, along with similar microbial mats, are built by layers of microorganisms that have been shaping […]

Cells have their own hidden “wind system” that rapidly moves proteins and could change cancer research. Researchers at Oregon Health & Science University have identified a previously unknown system inside cells that works like internal “trade winds,” rapidly carrying essential proteins to the cell’s leading edge. This discovery is changing how scientists understand cell movement, […]