Cirrus clouds are high-altitude (8–17 kilometers) clouds composed of pure ice particles. These clouds have a significant impact on the planet's climate by scattering incoming sunlight and absorbing Earth's emitted infrared ...
Earth Sciences
Mar 14, 2023
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5
Martian sunsets are uniquely moody, but NASA's Curiosity rover captured one last month that stands out. As the sun descended over the horizon on Feb. 2, rays of light illuminated a bank of clouds. These "sun rays" are also ...
Space Exploration
Mar 6, 2023
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299
Air pollutants kill around 7 million people every year. Much of this pollution is tiny particles suspended in the air which, when inhaled, can cause people to develop heart and lung diseases, as well as cancer.
Environment
Nov 17, 2022
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22
While there are several sources of ice forming particles in the atmosphere, sea spray aerosols (SSAs) are recognized as a significant source of ice-nucleating particles (INPs). But what comprises SSAs, how they affect cloud ...
Earth Sciences
Nov 2, 2022
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37
On August 20 1977, 45 years ago, an extraordinary spacecraft left this planet on a journey like no other. Voyager 2 was going to show us, for the first time, what the outer solar system planets looked like close-up. It was ...
Astronomy
Aug 19, 2022
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1384
Aerosol particles in the atmosphere have a bigger impact on cloud cover—but less effect on cloud brightness—than previously thought, new research shows.
Earth Sciences
Aug 1, 2022
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174
Near Earth's north and south poles, wispy, iridescent clouds often shimmer high in the summertime sky around dusk and dawn. These night-shining, or noctilucent, clouds are sometimes spotted farther from the poles as well, ...
Planetary Sciences
Jul 22, 2022
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6
Studying the global climate—and how it's changing—involves examining thousands of small processes, chemical mechanisms, local weather phenomena, and more. One of the many factors scientists consider when studying the ...
Earth Sciences
Feb 28, 2022
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34
An international team of scientists conducted CALISHTO, a large-scale air measurement campaign in Greece last fall, with the goal of surveying, counting and characterizing the tiny particles and their impact on cloud formation. ...
Environment
Feb 11, 2022
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10
Even the finest particles of pollution influence the process of cloud formation and the rainfall regime. A study conducted in Manaus, the capital of Amazonas state in Brazil's North region, shows that oxidation leads small ...
Environment
Feb 7, 2022
0
51
