Explaining the plummeting cost of solar power
The dramatic drop in the cost of solar photovoltaic (PV) modules, which has fallen by 99 percent over the last four decades, is often touted as a major success story for renewable energy technology. But...
Artist depiction of the MMS spacecraft that provided the first view of magnetic reconnection. Credit: NASA/GSFC
Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection" -- the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion --...
The experiment on La Palma: The laser beam (yellow) generates an artificial guide star in the mesosphere. This light is collected in the receiver telescope (front left). The laser source and the receiver telescope are eight meters away from each other. Credit: Copyright Felipe Pedreros Bustos
The mesosphere, at heights between 85 and 100 kilometers above the Earth's surface, contains a layer of atomic sodium. Astronomers use laser beams to create artificial stars, or laser guide stars (LGS), in this layer...
Map of the bedrock topography beneath the ice sheet and the ice-free land surrounding the Hiawatha impact crater. The structure is 31 km wide, with a prominent rim surrounding the structure. In the central part of the impact structure, an area with elevated terrain is seen, which is typical for larger impact craters. Calculations shows that in order to generate an impact crater of this size, the earth was struck by a meteorite more than 1 km wide. Credit: The Natural History Museum of Denmark
An international team lead by researchers from the Centre for GeoGenetics at the Natural History Museum of Denmark, University of Copenhagen have discovered a 31-km wide meteorite impact crater buried beneath the ice-sheet in the...
This image shows the apparatus that is proving the efficacy of a double-layered rooftop panel. The top layer uses the standard semiconductor materials that go into energy-harvesting solar cells, the novel materials on the bottom layer perform the cooling task. Credit: Linda Cicero, Stanford News
Scientists at Stanford University have demonstrated for the first time that heat from the sun and coldness from outer space can be collected simultaneously with a single device. Their research, published November 8 in the...
In this study, dogs showed some of the signs of metacognition, specifically that they searched for more information when they had not seen where a reward was placed. Credit: Juliane Bräuer
Researchers at the DogStudies lab at the Max Planck Institute for the Science of Human History have shown that dogs possess some "metacognitive" abilities -- specifically, they are aware of when they do not have...
Chimpanzees (stock image). Credit: © Kjersti / Adobe Stock
Research carried out into the impact of changes to chimpanzee habitats found they have adapted to human developments in a number of ways -- including learning how to cross roads safely and the best times...
Fish fences across the tropical seas having large-scale devastating effects
Huge fish fences which are commonly used in tropical seas are causing extensive social, ecological and economic damage and are threatening marine biodiversity and human livelihoods, according to a new study. Fish fences are a common...
Rice farm, Philippines (stock image). Credit: © raksyBH / Adobe Stock
Hunter-gatherers in the Philippines who adopt farming work around ten hours a week longer than their forager neighbours, a new study suggests, complicating the idea that agriculture represents progress. The research also shows that a...
Ocean pollution (stock image). Credit: © Richard Carey / Adobe Stock
A survey of plastic pollution on Australia's Cocos (Keeling) Islands has revealed the territory's beaches are littered with an estimated 414 million pieces of plastic debris. The study led by IMAS researcher Dr Jennifer Lavers and...