Shock waves in outflow gases could regulate "volcano lightning"
Volcanic eruptions spew lava, rock and ash into the air. When fragments of these materials mix and collide in the outflow, they can create an electric potential large enough to generate lightning......»»
Melting high-mountain glaciers would release greenhouse gases into atmosphere, suggest scientists
The retreat of high mountain glaciers has accelerated since the 1980s, resulting in increased glacier runoff. However, it remains uncertain whether melting mountain glaciers enhance or release greenhouse gases, and whether areas exposed to glacier re.....»»
Social contagion research explores how ant colonies regulate group behaviors
In the world of social creatures, from humans to ants, the spread of behaviors through a group—known as social contagion—is a well-documented phenomenon. This process, driven by social imitation and pressure, causes individuals to adopt behaviors.....»»
New research reveals how galaxies avoid early death
Galaxies avoid an early death because they have a "heart and lungs" which effectively regulate their "breathing" and prevent them from growing out of control, a new study suggests......»»
Q&A: Researcher discusses how gravitational waves hint at dark matter and Big Bang mysteries
Gravitational waves, ripples in space-time predicted by Einstein almost a century ago, were detected for the first time in 2015. A new study led by Yanou Cui, an associate professor of physics and astronomy at the University of California, Riverside,.....»»
Researchers demonstrate anomalous Brewster effect in metamaterials
The Brewster reflectionless effect stands out as one of the simplest yet pivotal discoveries in manipulating waves. Initial investigations were limited to isotropic materials, but later, thanks to the advent of metamaterials, the phenomenon was found.....»»
Meteorological study provides enhanced understanding of tropical atmospheric waves
In a new meteorological study, an international team of researchers from the University of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science, the European Centre for Medium-Range Weather Forecasts (ECMWF; Reading, UK), and the Nationa.....»»
How cities can use AI to adapt to climate change
Urban spaces are particularly susceptible to the effects of climate change, such as heat waves, floods, and storms. But which areas of a city are affected, and how can city planners respond?.....»»
A midsummer red sprite seen from space
NASA astronaut Matthew Dominick photographed red sprites in Earth's upper atmosphere from the International Space Station on June 3, 2024. The bright red flashes are a less understood phenomena associated with powerful lightning events and appear hig.....»»
Heat Waves Need FEMA’s Help
Heat waves are costly and kill more people each year than hurricanes, tornadoes and floods combined, but because FEMA doesn’t count them as disasters, communities miss out on important resources.....»»
Heat Waves Can Buckle Train Tracks, Delaying Commutes and Commerce
Extreme heat can cause train tracks to expand and buckle. That’s forcing rail operators to adapt as the climate warms.....»»
5 New Types of Gravitational-Wave Detectors Could Reshape Astrophysics
With the confirmation of gravitational waves less than a decade old, scientists are barreling ahead with new detectors to pick up ever more elusive ripples in spacetime.....»»
New Antikythera mechanism analysis challenges century-old assumption
Physicists drew on statistical techniques used to analyze gravitational waves. Enlarge / Fragment of the Antikythera mechanism, circa 205 BC, housed in the collection of the National Archaeological Museum, Athens. (credit: Fine A.....»»
Visualizing the boundary modes of the charge density wave in a topological material
Charge density waves are quantum phenomena occurring in some materials, which involve a static modulation of conduction electrons and the periodic distortion of the lattice. These waves have been observed in numerous condensed matter materials, inclu.....»»
Improved imaging offers new insight into Mount Etna
With a technique called seismic tomography, researchers use the shape of traveling seismic waves from nearby or distant earthquakes to create 3D images of inner Earth, allowing them to "see" hundreds of kilometers below the surface......»»
Aerosols shown to increase size of cloud cells, causing greater radiative cooling under polluted conditions
Aerosols, often emitted alongside greenhouse gases, can brighten clouds and cause significant cooling. However, the uncertainty associated with aerosol–cloud interactions (ACIs) is large and potentially significant enough to mask a sizable portion.....»»
NASA mission to study mysteries in the origin of solar radio waves
NASA's CubeSat Radio Interferometry Experiment, or CURIE, is scheduled to launch July 9, 2024, to investigate the unresolved origins of radio waves coming from the sun......»»
Are lightning bugs a threatened species? No one knows
They glow like fading stars and have made memories of shimmering summertime backyards for generations......»»
Exploring the possibility of probing fundamental spacetime symmetries via gravitational wave memory
As predicted by the theory of general relativity, the passage of gravitational waves can leave a measurable change in the relative positions of objects. This physical phenomenon, known as gravitational wave memory, could potentially be leveraged to s.....»»
Sicily"s Catania airport reopens after Mount Etna eruption
Sicily's Catania airport reopened Friday after a temporary suspension of flights earlier in the day caused by an eruption from Mount Etna, Europe's largest active volcano......»»
Flights slowly resume at Sicily"s Catania airport as volcano erupts
Sicily's Catania airport began gradually reopening for flights Friday after they were temporarily suspended following an eruption from Mount Etna, Europe's largest active volcano......»»