Temperature-dependent splitting of quadruply quantized vortices in superfluids

According to a recent study from the University of Helsinki, published in the journal Physical Review Letters, a vortex of a superfluid that has been quantized four times has three ways of dividing, depending on the temperature. The fluid transforms into a superfluid near the absolute zero point of temperature (approximately -273°C). Internal resisting forces, … Read more

Experimental evidence confirms existence of altermagnetism, a third magnetic phase

Ferromagnetism and antiferromagnetism have long been known to scientists as two classes of magnetic order of materials. Back in 2019, researchers at Johannes Gutenberg University Mainz (JGU) postulated a third class of magnetism, called altermagnetism. This altermagnetism has been the subject of heated debate among experts ever since, with some expressing doubts about its existence. … Read more

New thermometry method reveals cooling effect in compressed quantum gases

An international collaboration between researchers from Innsbruck and Geneva has unveiled a groundbreaking thermometry method tailored for measuring temperatures in low-dimensional quantum gases. Surprisingly, their findings suggest that compressing a gas may lead to cooling—a counterintuitive phenomenon that challenges conventional wisdom. Published in Science Advances, this study marks a significant milestone in our understanding of … Read more

Massive galaxy observed 11.5 billion years ago challenges galaxy formation models

New revelations from the depths of space have shaken the foundations of our understanding of galaxy formation and dark matter, thanks to groundbreaking observations of a colossal stellar population dating back more than 11 billion years—a phenomenon that defies existing models. Today’s publication in Nature unveils startling findings from the James Webb Space Telescope (JWST), … Read more

What type of cells lack a nucleus and membrane-bound organelles?

Cells lacking a nucleus and membrane-bound organelles are known as prokaryotic cells. These cells represent one of the two major categories of cells, the other being eukaryotic cells, which possess a nucleus and various membrane-bound organelles. Prokaryotic cells are found in two domains of life: Bacteria and Archaea. Despite their simplicity compared to eukaryotic cells, … Read more

Astronomers detect pulsar within supernova remnant CTB 87

Astronomers from Nanjing University in China, utilizing the Five-hundred-meter Aperture Spherical radio Telescope (FAST), sheds light on the enigmatic CTB 87 supernova remnant. Published on February 1 on the arXiv pre-print server, their findings reveal the detection of a radio pulsar within CTB 87, a significant milestone in understanding these celestial phenomena. Pulsars, characterized by … Read more

New supernova remnant G321.3-3.9 unveiled with multi-wavelength data

Astronomers at Curtin University in Australia and collaborators worldwide: the identification of a novel supernova remnant (SNR) located approximately 3,300 light years away. Dubbed G321.3-3.9, this newly found SNR boasts an elliptical form and is believed to be a few millennia old. The revelation was recently unveiled in a paper published on Jan. 30 via … Read more

Scientists seek planets with “CO runaway” for life’s origins

The search for habitable exoplanets involves looking for planets with similar conditions to the Earth, such as liquid water, a suitable temperature range and atmospheric conditions. One crucial factor is the planet’s position in the habitable zone, the region around a star where liquid water could potentially exist on the planet’s surface. NASA’s Kepler telescope, … Read more

Bipedal gait leaves telltale mark on skull, study confirms

The evolution of bipedalism in fossil humans can be detected using a key feature of the skull—a claim that was previously contested but now has been further validated by researchers at Stony Brook University and The University of Texas at Austin. Compared with other primates, the large hole at the base of the human skull … Read more

Galactic quasars blow out stellar fuel, suppressing starbirth in the early universe

Theoretical predictions have been confirmed with the discovery of an outflow of molecular gas from a quasar when the universe was less than a billion years old. A quasar is a compact region powered by a supermassive black hole located in the center of a massive galaxy. They are extremely luminous, with a point-like appearance … Read more

New technique shows promise for healing damaged lungs

In the intricate landscape of the human body, the lungs and their vasculature resemble a complex network akin to the plumbing system of a building. Within this anatomical framework, the lungs’ blood vessels serve as vital conduits, facilitating the transportation of blood and essential nutrients for oxygenation and carbon dioxide removal. Just as pipes in … Read more

New observations reveal secrets of AT 2023clx

Astronomers from across the globe have embarked on a comprehensive investigation of AT 2023clx, an extraordinary tidal disruption event (TDE) that stands as the closest optical phenomenon of its kind to Earth. Published on the arXiv pre-print server on January 22, the findings from this multiwavelength observation campaign offer valuable insights into the characteristics of … Read more

Scientists create ultra-durable time crystal

Researchers at TU Dortmund University have achieved a groundbreaking feat by creating a remarkably resilient time crystal, surpassing previous experiments by millions of times. This achievement validates a captivating phenomenon theorized by Nobel laureate Frank Wilczek roughly a decade ago, a concept that has intrigued both scientists and science fiction enthusiasts alike. Their findings, recently … Read more

Concept of redshift

Redshift, a fundamental concept in astronomy and cosmology, serves as a cornerstone for understanding the universe’s vastness, expansion, and evolution. It represents a phenomenon where the light emitted by celestial objects, such as galaxies, stars, and quasars, is shifted towards longer wavelengths as they move away from an observer. This phenomenon, discovered over a century … Read more

EX Lup-type outburst observed in young star V1741 Sgr

A recent astronomical breakthrough unveils the intriguing dynamics of the young variable star V1741 Sgr, also known as SPICY 71482 and Gaia22dtk. This celestial entity, residing in the proximity of the youthful star cluster NGC 6530, experienced an accretion outburst that caught the attention of astronomers worldwide. First documented as a variable star in 1957, … Read more

Antimicrobial resistance

Antimicrobial resistance (AMR) is a complex and growing global health concern that poses a serious threat to the effective prevention and treatment of bacterial, viral, parasitic, and fungal infections. It occurs when microorganisms, such as bacteria, viruses, fungi, and parasites, evolve and develop resistance to the antimicrobial drugs designed to eliminate them. This phenomenon undermines … Read more

What causes lunar phases?

The lunar phases, also known as the moon’s phases, are a fascinating and predictable cycle of changes in the appearance of the moon as viewed from Earth. These phases result from the varying positions of the Earth, Moon, and Sun in space, influencing the amount of sunlight that reaches different parts of the Moon’s surface. … Read more

Function of the amygdala in the brain

The amygdala is a small, almond-shaped structure located deep within the brain’s temporal lobe. Despite its relatively small size, the amygdala plays a crucial role in the complex landscape of human emotions, memory, and social interactions. This intricate brain region is involved in processing and regulating a wide range of emotions, particularly those associated with … Read more

Concept of coevolution

Coevolution, a captivating and intricate ecological phenomenon, lies at the intersection of biology and evolution, illuminating the interconnectedness of species within ecosystems. This concept encapsulates the dynamic and reciprocal changes that occur in two or more species as a result of their interactions over time. Coevolution is not a unidirectional process; instead, it involves a … Read more