An experimental spy satellite that was deemed "lost" after eluding detection for decades has finally been found. "The S73-7 satellite has been rediscovered after being untracked for 25 years," astrophysicist Jonathan McDowell said in an April 29 post on X, formerly Twitter. He says it reappeared on April 25, citing Space Force data.
Summer can be an extra challenging time for Texas's 189 major water supply reservoirs. With temperatures consistently reaching 100 degrees or higher, reservoir evaporation rates see high increases.
A research team at Los Alamos National Laboratory is using computer models to simulate how climate change could expand the geographical range in which mosquitoes live, which may cause an increase in mosquito-borne illness. The study was recently published in the Journal of Climate Change and Health.
Food-borne diseases like typhoid, caused by Salmonella Typhimurium, are a severe threat to public health, especially in India. The indiscriminate use of antibiotics has allowed this bacterium to become resistant, posing a major hurdle in treating infections.
After starting science operations in February, Japan-led XRISM (X-ray Imaging and Spectroscopy Mission) studied the monster black hole at the center of galaxy NGC 4151.
Domestic soybeans serve as an important source of healthy edible plant oil and high-quality plant protein in our food culture. In addition to the well-known components of oil (approximately 20%), protein (approximately 40%), and carbohydrates (approximately 30%), soybean seeds also contain a range of specialized metabolites that promote human health. For example, soyasaponins, which make up 0.5–6.5% of the seed, and isoflavonoids, which make up 0.01–0.5%, are critical for promoting human health.
One of the most important decisions an entrepreneur can make when launching a business is choosing the right co-founder. Should compatible personalities guide the choice? Or should the priority be someone who brings resources to the startup? How do entrepreneurs make this decision if they must choose between these two options?
The share of consumers who indicated they are either "rather happy" or "very happy" with their diets rose from 81% in January 2024 to 87% last month, according to the April 2024 Consumer Food Insights Report. This surprising finding follows extensive media attention devoted to issues like food inflation in recent months, the report's authors noted.
Red blood cells (RBCs) transport oxygen throughout the body and are able to pass through a complex of narrow capillaries due to their ability to deform. "The deformability of RBCs is an important indicator of their health and functionality, and changes in this property can signal the presence of diseases," said Associate Professor Ye Ai at Singapore University of Technology and Design (SUTD).
The Australian brook lamprey (Mordacia praecox) is part of a group of primitive jawless fish. It's up to 15 cm long, with rows of sharp teeth. Surprisingly, it doesn't use these teeth to suck blood like most lamprey species—it's non-parasitic.
Retrosynthesis aims to predict a set of reactants for producing given molecules, which plays a significant part in the biochemistry field, such as molecular pathway design and drug discovery. Most existing methods only benefit from one kind of information rather than further considering the diverse aspect of molecular information.
More compassion = a better relationship. This is an obvious rule of thumb for couples. But it doesn't apply to everyone, as a study shows. Some people prefer to do without it.
Security seems to most people a basic necessity of life, a prerequisite for a good life. But if you think about it a little longer and more deeply, as political philosopher Josette Daemen has done, you realize that security sometimes comes at the expense of other important goods, such as freedom and equality.
The income of many people around the world has considerably increased due to the economic globalization of the last 50 years. However, these income gains are unevenly distributed. A study by Dr. Valentin Lang, junior professor of political economy at the University of Mannheim, and his co-author Marina M. Tavares of the International Monetary Fund shows that the top 10% of the national income distributions, in particular, have benefited from this development.
The sun is increasing its intensity on schedule, continuing its approach to solar maximum. In just over a 24-hour period on May 5 and May 6, 2024, the sun released three X-class solar flares measuring at X1.3, X1.2, and X4.5. Solar flares can impact radio communications and electric power grids here on Earth, and they also pose a risk to spacecraft and astronauts in space.
The Gum Nebula is an emission nebula almost 1400 light-years away. It's home to an object known as "God's Hand" among the faithful. The rest of us call it CG 4.
Capturing carbon dioxide (CO2) from the atmosphere to store underground "sounds too good to be true", a climate expert told AFP, yet the technology to increase its capacity tenfold is already being tested.
The junction composed of traditional metals and 2D semiconductors is a key component of semiconductor devices.
Multicomponent ultra-high temperature ceramic (UHTC) has attracted much attention in research due to its superior high-temperature mechanical properties, lower thermal conductivity and enhanced oxidation resistance.
In recent years, the exceptional structure and fascinating electrical and optical properties of two-dimensional (2D) layered crystals have attracted widespread attention. Examples of such crystals include graphene, black phosphorus (BP), and transition metal dichalcogenides (TMDs).
Atlantic salmon are caught by fisheries when the fish are migrating to spawn. A new study led by the University of Helsinki explored how salmon caught at different times during their spawning migration differ from each other genetically. The study on wild salmon in the northern Baltic Sea revealed that especially in the early part of the fishing season, fishing strongly targets salmon carrying a "large salmon genetic variant." The variant guides Atlantic salmon to grow large and to mature at an older age... Читать дальше...
Lysosomes are critical for cellular degradation, characterized by their acidic pH and array of hydrolytic enzymes. They degrade materials through endocytosis, phagocytosis, and autophagy, recycling essential components. Lysosomes also participate in vital cellular processes, and their dysfunction contributes to diseases such as lysosomal storage diseases, neurodegenerative disorders, and cancer.
An international team led by researchers at the University of Toronto has found a family of natural compounds with potential as new and more effective treatments for parasitic worms. The compounds stall the unique metabolic process that worms use to survive in the human gut.
The eventual prevalence of a piece of misinformation may depend on its topic and the country in which it spreads, with notable differences between the UK, Germany, France and Italy, according to a study published May 8 in the open-access journal PLOS ONE by Fabiana Zollo from the Ca' Foscari University of Venice, Italy, and colleagues. This finding suggests that policies to combat misinformation and polarization may need to be context-specific in order to be effective, the authors say.
When scientists look for an earthquake's cause, their search often starts underground. As centuries of seismic studies have made clear, it's the collision of tectonic plates and the movement of subsurface faults and fissures that primarily trigger a temblor.
