Utilizing the stellar evolution code named Modules for Experiments in Stellar Astrophysics (MESA), Chinese astronomers have investigated the evolution of a recently discovered ultra-compact double white dwarf binary system ...
Antibiotics, our infantry against bacteria, are losing their ability to fight against bacterial infections due to the rise of superbugs—microbes that have developed resistance to medications that are designed to kill them. ...
Butterfly fossils are rare, and finds that preserve fine anatomical details and wing patterns are an absolute exception. An international research team from Sweden, the U.S., and Germany, led by Dr. Hossein Rajaei, lepidopterist ...
Evolution
47 minutes ago
0
0
A 2,000-year-old papyrus fragment, discovered in the archives of the French Institute of Oriental Archaeology in Cairo, reveals 30 previously unpublished verses by Empedocles, a pre-Socratic philosopher of the fifth century ...
Archaeology
57 minutes ago
0
0
Reducing aircraft soot emissions may not reduce contrail clouds, according to in-flight observations of emissions from a passenger jet with modern "lean-burn" engines, reported in Nature. Contrails from aircraft contribute ...
Environment
1 hour ago
0
0
A growing network of meltwater lakes at the edge of the Greenland ice sheet is accelerating the flow of major glaciers, potentially increasing the pace of global sea-level rise. Warmer air and sea temperatures have led to ...
Earth Sciences
1 hour ago
0
0
In the search to replace antibiotic growth promoters with effective alternatives in modern swine production, plant-based essential oils are showing potential to provide lasting benefits. In a rare long-term public study that ...
Veterinary medicine
1 hour ago
0
0
Heterogeneous catalysis—in which catalysts and reactants are of different phases, e.g., solid and gas—is important to many industrial processes and often involves solid metal as the catalyst. Ammonia synthesis, catalytic ...
Analytical Chemistry
1 hour ago
0
0
Rivers are rarely the calm, orderly streams we imagine on maps. Over time, their winding paths—called meanders—shift, bend, and occasionally snap off in sudden "cutoff" events that shorten loops and reshape the landscape. ...
Earth Sciences
1 hour ago
0
0
As biologists know, nature can take its sweet time explaining itself. Andrew Gillis, associate scientist at the Marine Biological Laboratory (MBL), has been investigating how the paired fins of fishes evolved for nearly 20 ...
Evolution
1 hour ago
0
0
