Astronomers are one step closer to revealing the properties of dark matter enveloping our Milky Way galaxy, thanks to a new map of twelve streams of stars orbiting within our galactic halo.

Researchers have unearthed the earliest definitive evidence of broomcorn millet (Panicum miliaceum) in ancient Iraq, challenging our understanding of humanity's earliest agricultural practices.

Researchers have come up with a computer model that mirrors the way misinformation spreads in real life. The work might provide insight on how to protect people from the current contagion of misinformation that threatens public health and the health of democracy.

A new international study offers a clearer picture of the impact of COVID-19 infection and the risk of severe outcomes on young people around the world.

An estimated 370,000 Californians rely on drinking water that may contain high levels of arsenic, nitrate or hexavalent chromium, and contaminated drinking water disproportionately impact communities of color in the state, finds a new analysis. Because this study is limited to three common contaminants, results likely underestimate the actual number of Californians impacted by unsafe drinking...

Tertiary lymphoid structures are formations that occur outside of the lymphatic system. They contain immune cells and are similar in structure and function to lymph nodes and other lymphoid structures. However, little is known about how tertiary lymphoid structures form. In a new article published in Immunity, Moffitt Cancer Center researchers report on the molecular and cellular mechanisms that...

A new study shows that students retain information quite well when watching lectures at up to twice their actual speed. With 85% of college students surveyed as part of the study reporting they "speed-watched" lecture videos, the researchers engaged students in a series of experiments to test how faster speeds affected learning. Recorded lectures have become a routine part of course instruction...

While site fidelity may be beneficial for animals when environmental conditions don't change very fast, those benefits may not be realized in the ever-changing world dominated by humans, researchers have found through a review of scientific literature.

The sun rises on the savannas of central Kenya. Grasses sway in the wind as hoof-steps fall on the dusty ground. A menagerie of Africa's iconic wildlife congregates around a watering hole to quench their thirst during the region's dry season.

A new mathematical model describes the interactions between a population and a toxicant in a river environment, enabling researchers to study how the way in which a pollutant moves through a river affects the wellbeing and distribution of the river's inhabitants.

A new study shows that imaging of brain activity with functional near-infrared spectroscopy might offer a more accurate and reliable way to distinguish impairment from cannabis intoxication.

Researchers have developed a passive air sampler clip that can help assess personal exposure to SARS-CoV-2, which could be especially helpful for workers in high-risk settings, such as restaurants or health care facilities.

Researchers have discovered a new role for macrophages in the fight against cardiovascular disease. Macrophages have mostly been thought to drive inflammation and promote plaque build-up, but a new study shows that a subset of macrophages is actually fighting against plaque build-up within the artery.

Researchers have developed the first patient-derived stem cell model for studying eye conditions related to oculocutaneous albinism (OCA).

Scientists have provided new insights into molecular 'crosstalk' in pancreas cancer cells, identifying vulnerabilities that could provide a target for therapeutic drugs already being studied in several cancers.

A new study that analyzed 20 years of fatal opioid overdose data in adults 55 and older found that between 1999 and 2019, opioid-related overdose deaths increased exponentially in U.S. adults ages 55 and older, from 518 deaths in 1999 to 10,292 deaths in 2019: a 1,886% increase.

Researchers have discovered the first in-situ evidence of chlorophyll remnants in a billion-year-old multicellular algal microfossil preserved in shales from the Congo Basin. This discovery has made it possible to unambiguously identify one of the first phototrophic eukaryotic organisms in the fossil record. This research opens up new perspectives in the study of the diversification of eukaryotes...

Scavengers are supposed to have generalist diets and eat whatever they can find. But a new study shows Australia's Tasmanian devils have their own specific tastes and preferences -- in other words, they're picky eaters.

Scientists have taken a significant step in providing the people of Rwanda the scientific tools they need to help address mental health issues that stemmed from the 1994 genocides of the Tutsi ethnic group.

Researchers have discovered a new, more effective method of preventing the body's own proteins from treating nanomedicines like foreign invaders, by covering the nanoparticles with a coating to suppress the immune response that dampens the therapy's effectiveness.

Clouds have significant impact on the energy balance of the Earth system. Low clouds such as Stratocumulus, Cumulus and Stratus cover about 30 percent of the Earth surface and have a net cooling effect on our climate. What counteracts global warming, can have economic consequences: a persistently dense and low cloud cover over land can reduce agricultural production and the solar-power generation....

A new study reveals why some attempts to convert carbon dioxide into fuel have failed, and offers possible solutions.

Acute myeloid leukemia (AML) is a cancer of white blood cells. Researchers discovered that AML cancer cells depend on a protein called SCP4 to survive. They think the previously little-known protein is involved in a metabolic pathway the cancer cells need to survive. SCP4 provides researchers with a potential new therapeutic approach for this aggressive cancer.

Arctic coasts are characterized by sea ice, permafrost and ground ice. This makes them particularly vulnerable to the effects of climate change, which is already accelerating rapid coastal erosion.