Polarization measurements of solar radio emissions are key diagnostics of coronal plasma, magnetic fields, and propagation effects, and can provide additional constraints on emission mechanisms. At meter wavelengths, circular polarization (CP) has long been exploited in solar radio studies, while linear polarization (LP) was assumed to be absent. This view arose from the expectation that…
About 3 billion years ago, an unfortunate star became caught in a twisting tug-of-war between two gigantic black holes, and now we’re seeing the faint screams of X-rays emanating from this violent event. If confirmed, it could be the most distant episode of two black holes attacking a star ever seen. An international team of…
A recent study of Letters on Earth and Planetary Sciences is the first to directly link earthquakes to climate change-induced glacier melt. Scientists analyzed 15 years of seismic activity on the Grandes Jorasses, a peak that is part of the Mont Blanc massif between Italy and France, to better understand this association. This massif is…
These massive and supermassive black holes have baffled astronomers for decades. At last, we have finally discovered how they are formed. Continue reading Start with a bang! » #Supermassive #black #holes #appeared #stars #ancient #galaxies
Under the Paris agreement, each country must provide a reliable inventory of greenhouse gas emissions to the United Nations Framework Convention on Climate Change (UNFCCC) using guidance provided by the Intergovernmental Panel on Climate Change (IPCC). Under the Enhanced Transparency Framework, each country must apply the 2006 IPCC guidelines to complete greenhouse gas inventories. The…
Background Snakebite envenomings (SBE) are an important and neglected health problem due to their frequency and potential for serious clinical outcomes. Envenomations can cause local and systemic complications, depending on the species of snake, the amount of venom injected, comorbidities, timing and use of antivenin, and access to medical care. Systemic effects can be fatal…
A healthy man in his 50s suffered a stroke after drinking eight energy drinks every day, a habit that raised his blood pressure to a dangerously high range. The incident, described in BMJ Case Reportsis prompting renewed concern about how excessive caffeine consumption can harm the cardiovascular system. The patient arrived at the hospital with…
Comet C/2025 R2 (SWAN) shines next to the Eagle Nebula. (Image credit: Daniele Gasparri) He drove past the Eagle Nebula and the iconic Pillars of Creation, from his home in Chile’s Atacama Desert, on the night of October 17 earlier this year. Deep space view reveals bright green coma of kite C/2025 R2 (SWAN), just…
December 5, 2025 1 minimum reading Add us on GoogleAdd science-Am By 2040, one truck of plastic garbage will be thrown away every second, report says unless we act now It is estimated that by 2040, approximately 280 million metric tons of plastic waste will enter the air, water, soil and human body each year,…
Matthew Sacchet (left) attaches an EEG headset that can monitor brain activity during states of deep meditation Matthew D. Sacchet Many of us have downloaded mindfulness apps like Headspace or Calm, and have probably benefited from spending 10 minutes each day focusing on our breathing. But reducing stress and softening the sharper edges of anxiety…