The universe is humming with gravitational radiation—a very low-frequency rumble that rhythmically stretches and compresses spacetime and the matter embedded in it.
Astronomy
Aug 9, 2023
0
904
Physicists at St Petersburg University have studied planetary waves and discovered that they can generate disturbances in the stratosphere causing extreme warming and cooling in the Arctic and mid-latitudes. Numerical modeling ...
Earth Sciences
Aug 2, 2023
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1
Earth is rapidly warming and scientists are developing a variety of approaches to reduce the effects of climate change. István Szapudi, an astronomer at the University of Hawaiʻi Institute for Astronomy, has proposed a ...
Planetary Sciences
Jul 31, 2023
23
186
Saharan dust has made headlines in recent years for traveling across the globe, turning our skies picturesque hues of orange while coating our cities in thin layers of wind-blown dust. This has implications for our infrastructure ...
In recent decades the ice sheets of Greenland and Antarctica have decreased dramatically, and scientific projections suggest an increasing retreat in the future. Ice sheets form on land in regions with sufficient snowfall, ...
Earth Sciences
Jul 21, 2023
0
1
Metamaterials are a type of artificial material which, as the prefix "meta"—meaning in Greek "after" or "beyond"—indicates, demonstrate electromagnetic properties and other characteristics not found in nature.
Condensed Matter
Jul 17, 2023
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4
Radiation largely shapes variations of temperatures across continents, but evaporation and turbulent heat transfer also play their part. These are inherently complex processes. Following a new physical approach, the observed ...
Earth Sciences
Jul 13, 2023
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247
As some Latin American countries battle severe drought and others disease outbreaks brought on by flooding, the World Meteorological Organization warned Wednesday that extreme weather and climate shocks were becoming more ...
Environment
Jul 5, 2023
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6
Near-surface air pollution is a serious health hazard estimated to cause millions of deaths annually. Soot, emitted for instance from coal burning or from motor vehicles, is one such pollutant.
Environment
Jun 28, 2023
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1
From 1967 to 1972, the American space agency NASA conducted a series of space missions to the moon. Nearly 400 kilograms of soil samples were transported back to Earth. NGI—The Norwegian Geotechnical Institute is now using ...
Space Exploration
Jun 26, 2023
0
18
