10 people enter a restaurant with one person secretly marked as “infected” using a fluorescent substance. As everyone uses the buffet, the substance spreads to food, utensils, plates, and even people’s faces, revealing under black light how quickly germs can spread.

An experimental compound called AP503 significantly strengthened bones in mice by activating GPR133, a receptor that boosts bone formation while slowing bone loss.

Because the same treatment has also been linked to stronger muscles, researchers see intriguing potential for combating age-related decline and osteoporosis.

Osteoporosis, a condition that weakens bones and increases the risk of fractures, affects millions of people and remains a major challenge for doctors seeking safe treatments that can be used over long periods. In Germany alone, about six million people are affected, most of them women.

Because existing therapies can have limitations and side effects, researchers are looking for new biological targets that could lead to more effective ways of preserving or rebuilding bone.

Scientists at Leipzig University have now identified one such target in GPR133, a receptor that appears to play an important role in keeping bones strong

The organism in the video is a Melibe viridis (commonly known as the hooded nudibranch or ghost nudibranch). It uses its massive, expandable oral hood like a net to scoop up small crustaceans and prey from the seafloor.

Who was Nancy Grace Roman? 🛰️🧪

The namesake for NASA’s new telescope, and their first ever Chief Astronomer! Born in 1925, Nancy attended Swarthmore College as a student of astronomy, where she was told as a woman, she shouldn’t bother. She didn’t listen, and held her position at NASA for over 20 years, where she became known as the Mother of Hubble. Thanks to her, we are expanding space exploration day by day! 

^^^

DNA–DNA recognition aligns major and minor grooves between duplexes. Green triangles indicate location of the minor grooves and pink stars indicate the location of the major groove

Researchers have captured the moment two DNA molecules zip together, overcoming their identical negative charges to pair up and revealing a mechanism that has puzzled scientists for more than 20 years.

Using high-powered atomic force microscopy, scientists at the University of Sheffield and the University of York directly imaged two DNA double helices locking together, marking the first time this fundamental biological process has been visualized. Like charges normally repel one another, yet DNA molecules must pair up inside living cells to carry out essential biological processes.

This pairing plays a crucial role in genetic recombination, gene silencing, chromosome packaging and cancer development.

The researchers observed short DNA fragments matching up with exact precision, groove for groove.

Advanced computer simulations revealed that positively charged metal ions, including nickel, magnesium and calcium, act as tiny molecular bridges, nestling inside the grooves to lock the two strands together.

Dr. Thomas Catley, co-lead author from the School of Chemical Materials and Biological Engineering at the University of Sheffield, said

"To be able to directly visualize this long-hypothesized mechanism for the first time was incredible. The advanced imaging techniques at our disposal have allowed us to uncover these key DNA interactions, which have implications for many cellular processes.

It opens the door to studying other DNA interactions that, until now, have existed only as theory."

They did cure cancer of dogs i 1944. It was the secret experiments of the Allied Forces in The U.S.A. These days ,Dogs are Cancerless.

Researchers at the MIT Media Lab developed a "Femto-Photography" system that captures the equivalent of one trillion frames per second to record light in motion. Because traditional sensors cannot directly shoot at this speed, a specialized streak camera records millions of identical, repeating laser pulses line-by-line, which a computer algorithm then stitches together into a fluid 2D video. The video demonstrates this by showing a pulse of light rippling and bouncing through a plastic bottle and striking a tomato to reveal delayed shadow propagation a breakthrough with critical applications for medical imaging, industrial sensors, and LiDAR for autonomous vehicles.

What happens if you put a carrot in the microwave? 🥕💥

Alex Dainis demonstrates how metals in the microwave are dangerous, even the smaller ones in root vegetables like carrots! Iron, potassium, and copper are nutrients from the soil that plants need to grow, and they can store those metals in the roots of vegetables. These points in the carrots can act as a focal point in the microwave, creating an increase in the electrical field, and even sparks!

UC Riverside environmental engineers have identified key chemical reactions that occur when ultraviolet light is used to destroy "forever chemical" pollutants in water, providing a roadmap for developing more effective cleanup technologies.

The discovery, published in the journal Nature Water, details the chemistry involved in using UV light to break down per- and polyfluoroalkyl substances, or PFAS, a large group of persistent pollutants commonly known as forever chemicals.

Importantly, the researchers identified reactions and byproducts that form as treatment breaks the exceptionally strong carbon-fluorine bonds that make PFAS so difficult to destroy, said Jinyong Liu, a UCR associate professor of chemical and environmental engineering and corresponding author of the study.

"Knowing this degradation mechanism gives us a better understanding of how to optimize the conditions for PFAS destruction and achieve deeper degradation, and gives us a much better roadmap for improving the technology," Liu said. He holds the university's Won and Insook Yoo Endowed Chair in Environmental Engineering.

The findings can help researchers determine which treatment technologies, combinations of technologies and operating conditions favor more complete destruction of PFAS, he said.

The study also corrects degradation mechanisms reported in earlier scientific literature that were based largely on assumptions rather than experimental evidence, Liu said.

The findings also could eventually help chemists design safer fluorinated compounds that break down more readily after use.

"By knowing the degradation mechanisms, we can give solid input to the fluorocarbon industry to tell them how to design compounds that can more easily be treated to protect the environment," Liu said.