For decades, scientists believed a fertilized egg’s DNA began as a shapeless mass, only organizing itself once the embryo switched on its genes. But new research reveals that the genome is already carefully arranged in three dimensions long before that critical activation step, known as Zygotic Genome Activation. Using a powerful new method called Pico-C, researchers captured this hidden DNA architecture in unprecedented detail, showing that a complex scaffold is built early to control which genes will later turn on.

• ScienceDaily
• 4 gün, 6 saat, 33 dakika

For decades, scientists believed a fertilized egg’s DNA began as a shapeless mass, only organizing itself once the embryo switched on its genes. But new research reveals that the genome is already carefully arranged in three dimensions long before that critical activation step, known as Zygotic Genome Activation. Using a powerful new method called Pico-C, researchers captured this hidden DNA architecture in unprecedented detail, showing that a complex scaffold is built early to control which genes will later turn on.

• ScienceDaily
• 4 gün, 6 saat, 33 dakika

Heart disease is on track to tighten its grip on American women. New projections from the American Heart Association warn that over the next 25 years, cardiovascular disease will rise sharply, driven largely by a surge in high blood pressure, diabetes, and obesity. By 2050, nearly 60% of women in the U.S. could have high blood pressure, and close to one in three women ages 22 to 44 may already be living with some form of heart disease.

• ScienceDaily
• 4 gün, 6 saat, 33 dakika

Heart disease is on track to tighten its grip on American women. New projections from the American Heart Association warn that over the next 25 years, cardiovascular disease will rise sharply, driven largely by a surge in high blood pressure, diabetes, and obesity. By 2050, nearly 60% of women in the U.S. could have high blood pressure, and close to one in three women ages 22 to 44 may already be living with some form of heart disease.

• ScienceDaily
• 4 gün, 6 saat, 33 dakika

Sky This Week is brought to you in part by Celestron. Friday, February 27Asteroid 7 Iris reaches opposition at 1 P.M. EST today. Now shining at 9th magnitude, you can best spot the main-belt world after dark, rising higher in the hours after sunset.  By 10 P.M. local time, Iris is 40° high in the Continue reading "The Sky This Week from February 27 to March 6: A total lunar eclipse" The post The Sky This Week from February 27 to March 6: A total lunar eclipse appeared first on Astronomy Magazine .

• Astronomy Magazine
• 4 gün, 6 saat, 51 dakika

Baby dinosaurs weren’t coddled like lion cubs or elephant calves—they were more like prehistoric latchkey kids. New research suggests that young dinosaurs quickly struck out on their own, forming kid-only groups and surviving without much parental help, while their massive parents lived entirely different lives. Because juveniles and adults ate different foods, faced different predators, and moved through different parts of the landscape, they may have functioned almost like separate species within the same ecosystem.

• ScienceDaily
• 4 gün, 7 saat, 43 dakika

Engineers at UC Davis have built a remarkable device that creates power at night by tapping into something we rarely think about: the vast cold of outer space. Using a special type of Stirling engine, the system links the warmth of the ground to the freezing depths above us, generating mechanical energy simply from the natural temperature difference after sunset.

• ScienceDaily
• 4 gün, 8 saat, 6 dakika

Green hydrogen could be a game-changer for the clean energy transition—but right now, it’s too expensive and still relies on harmful “forever chemicals.” A new EU-backed project called SUPREME aims to fix that by reinventing how hydrogen is made. Led by the University of Southern Denmark with partners across Europe, researchers are developing a PFAS-free electrolysis system that slashes the use of rare metals like iridium and dramatically cuts costs.

• ScienceDaily
• 4 gün, 12 saat, 53 dakika

The congenital condition spina bifida is often treated surgically in the womb, but many children still go on to have mobility issues. The addition of a patch made up of stem cells from donated placentas could improve their long-term outcomes

• New Scientist
• 4 gün, 13 saat, 21 dakika

The congenital condition spina bifida is often treated surgically in the womb, but many children still go on to have mobility issues. The addition of a patch made up of stem cells from donated placentas could improve their long-term outcomes

• New Scientist
• 4 gün, 13 saat, 21 dakika

Meet a newly described species from Japan, Malagazzia Michelin , once misidentified in field guides before scientists revealed its true identity.

• Discover Magazine
• 4 gün, 14 saat, 1 dakika

Learn more about Pico-C, a tool that helps reveal the genome's structure during the first days of life.

• Discover Magazine
• 4 gün, 14 saat, 21 dakika

Learn how sex-biased interbreeding between Neanderthals and modern humans explains why Neanderthal DNA is largely missing from the X chromosome.

• Discover Magazine
• 4 gün, 14 saat, 31 dakika

One of our universe's biggest stars has dramatically turned into a rare, yellow 'hypergiant' star, and astronomers aren't sure when it will go supernova.

• SPACE.com
• 4 gün, 14 saat, 51 dakika

Learn more about the chemical compound oleamide that leaks from plastic pollution and changes octopus meal preferences.

• Discover Magazine
• 4 gün, 14 saat, 51 dakika

A new trial found that Eli Lilly’s GLP-1 pill resulted in greater reductions in blood sugar levels and weight than oral semaglutide did, but fewer people stayed on it

• Scientific American
• 4 gün, 15 saat, 1 dakika