DNA replication is a complex process with many moving parts. In baker’s yeast, the molecular complex Ctf18-RFC keeps parts of the replication machinery from falling off the DNA strand. Human cells use a similar mechanism. Credit: Dr. Huilin Li, Van Andel Institute Humans and baker’s yeast have more in common than meets the eye, including … Read more
Credit: CC0 Public Domain Nature and natural resources play a critical role in our health, national security, economy, infrastructure design, and more. Yet, in policymaking, nature is often left out of the equation entirely or siloed into environment-specific or land management agencies. The process of overcoming these barriers is known as “mainstreaming nature,” and in … Read more
Prof Sahar Saleem with the Screaming Woman mummy. Credit: Sahar Saleem In 1935, the Metropolitan Museum of New York led an archaeological expedition to Egypt. In Deir Elbahari near Luxor, the site of ancient Thebes, they excavated the tomb of Senmut, the architect and overseer of royal works—and reputedly, lover—of the famed queen Hatschepsut (1479–1458 … Read more
Credit: CC0 Public Domain Equine companionship is built upon a foundation of trust and care. Yet, maintaining a horse’s trust can be challenging, especially when a past event has left the animal with behaviors mirroring what’s diagnosed as post-traumatic stress disorder (PTSD) in humans. Dr. Leslie Easterwood, a clinical associate professor at the Texas A&M … Read more
Laboratory tests show this 3D printed material molds and sticks to organs. Pictured is a porcine heart. Credit: University of Colorado at Boulder In the quest to develop life-like materials to replace and repair human body parts, scientists face a formidable challenge: Real tissues are often both strong and stretchable and vary in shape and … Read more
Credit: Pixabay/CC0 Public Domain Mountain hikes are invigorating. Crisp air and clear views can refresh the soul, but thin air presents an additional challenge for high-altitude birds. “All else being equal, bird wings produce less lift in low density air,” says Jonathan Rader from the University of North Carolina (UNC) at Chapel Hill, U.S., making … Read more
Schematic showing how exotic particles known as excitons can “hop” between nickel atoms (grey dots) in nickel dihalide materials. The excitons are represented by the red and light-blue orbitals. Credit: Comin Laboratory. MIT physicists and colleagues report new insights into exotic particles key to a form of magnetism that has attracted growing interest because it … Read more
Flames rise amid the billowing smoke from a wildland fire burning along the ridges near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. Credit: AP Photo/David Zalubowski A wildfire on the edge of metro Denver crept within a quarter-mile of evacuated homes, but authorities said Thursday morning they were hopeful … Read more
Credit: NASA, ESSA, Joseph Olmsted (STScI). Astronomers have recently found hundreds of “polluted” white dwarf stars in our home galaxy, the Milky Way. These are white dwarfs caught actively consuming planets in their orbit. They are a valuable resource for studying the interiors of these distant, demolished planets. They are also difficult to find. Historically, … Read more
The researchers found most coyotes steer away from areas where they expect to find people, like the one caught on a trail camera here. Credit: Michel Kohl Lab Georgia’s capital is home to more than 6 million people, a bustling film and music scene, and one of the most adaptable species in the U.S.: the … Read more
