Science Daily

A galaxy that suddenly stopped forming new stars more than 13 billion years ago has been observed by astronomers. Using the James Webb Space Telescope, astronomers have spotted a 'dead' galaxy when the universe was just 700 million years old, the oldest such galaxy ever observed.

Researchers have uncovered a strikingly similar suite of changes in gene activity in brain tissue from people with schizophrenia and from older adults. These changes suggest a common biological basis for the cognitive impairment often seen in people with schizophrenia and in the elderly.

Study in mice reveals novel gasping reflex triggered by cells in the lungs when the airway is restricted.

Researchers have developed a semiconductor chip that will enable ever-smaller devices to operate at the higher frequencies needed for future 6G communication technology.

Bumblebees successfully learned a two-step puzzle box task through social observation. This task was too complex for individual bees to learn on their own. Observing trained demonstrator bees performing the first unrewarded step was crucial for successful social learning. Individual bees failed to solve the puzzle without previous demonstration, despite extensive exposure.

A research team has examined the link between adverse childhood experiences and the risk of mental health problems later in life. The researchers have found that the risk of suffering from mental illness later in life among those experiencing significant adversity in childhood can be partly explained by factors shared by family members, such as genetics and environment.

Some of our genes can be expressed or silenced depending on whether we inherited them from our mother or our father. The mechanism behind this phenomenon, known as genomic imprinting, is determined by DNA modifications during egg and sperm production.

An updated method for directly observing physical interactions between cells, could allow scientists to one day map every possible cell interaction.

'Random DNA' is naturally active in the one-celled fungi yeast, while such DNA is turned off as its natural state in mammalian cells, despite their having a common ancestor a billion years ago and the same basic molecular machinery, a new study finds.

Precision timing and synchronization are crucial for navigation, communication and radar systems. Scientists have built compact chips capable of converting light into microwaves, which could improve these systems. This technology shrinks a tabletop system into a chip-sized format, reducing power usage and making it more applicable for use in everyday devices.

Epigenetic changes play important roles in cancer, metabolic and aging-related diseases, but also during loss of resilience as they cause the genetic material to be incorrectly interpreted in affected cells. A major study now provides important new insights into how complex epigenetic modification signatures regulate the genome. This study will pave the way for new treatments of diseases caused by faulty epigenetic machineries.

A new tool captures data from an unprecedented 1 million neurons simultaneously, painting a much fuller picture of brain dynamics.

Researchers shed light on archaea, intriguing microbes found in extreme environments but also in the human gut microbiome.

Living in neighborhoods with more white residents and greater lifetime experiences of racial discrimination are linked to increased systemic inflammation during pregnancy among Black women, according to new research.

A link between abnormal blood levels of amyloid -- a protein associated with Alzheimer's disease -- and subtle changes in brain microstructures on a type of MRI could lead to a new way to detect Alzheimer's earlier in people with no clinical signs.

A recent study analyzed individuals from diverse backgrounds and identified various genetic clusters involved in a broad range of biological mechanisms that may help explain ancestry-associated differences in type 2 diabetes clinical presentations.

The findings suggest that subtropical seagrasses are less resilient to heavy grazing from marine herbivores, in part because they receive less sunlight relative to their tropical counterparts. As tropical herbivores move into subtropical waters, overgrazing may prevent subtropical seagrass meadows from persisting in these environments.

A recent study provides critical insights into the reliability and robustness of patient-derived organoids as a clinical model of pancreatic cancer. The findings reveal that organoids' gene expression and drug responses are not affected by the brand of extracellular matrix used in the cell culture. However, one commercial product did increase the growth rate of pancreatic tumor organoids, making it particularly well-suited for the fast pace of pancreatic cancer treatment protocols.

Open any astronomy textbook to the section on white dwarf stars and you'll likely learn that they are 'dead stars' that continuously cool down over time. Astronomers are challenging this theory after discovering a population of white dwarf stars that stopped cooling for more than eight billion years.

Invasive plants can stay dormant for decades or even centuries before rapidly expanding and wreaking ecological havoc, finds a new study.