In an unexpected twist, an atmospheric particle's stickiness protects it from sunlight when the air is cool and dry. The particle's sticky nature, or viscosity, slows down the motion of molecules inside. The result is that ...
Earth Sciences
Mar 22, 2016
0
19
Two heads are often better than one, and a fourth mode is better than three when it comes to models of complex atmospheric particles.
Earth Sciences
Mar 4, 2016
0
17
Particulate matter (PM) in the air can enter the human body, affecting the cardiovascular system as well as other major organs. Chronic exposure leads to a number of health risks. The European Commission's in-house science ...
Environment
Dec 1, 2015
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11
NASA recently reported that a cloud of dust was surrounding Mars high above its atmosphere. The authors of the study ruled out Mars itself and its moons Phobos and Deimos as the sources of the dust and concluded that it must ...
Space Exploration
Nov 16, 2015
0
110
The Indian capital held its first "car-free day" Thursday to try to improve New Delhi's notoriously filthy air, but motorists were seen ignoring signs to keep off the roads.
Environment
Oct 22, 2015
0
34
Cloaking urban areas and wildfire zones, tiny smoke particles suspended in the atmosphere have a sizeable effect on our climate. But the exact effect of many of these aerosols—such as how much sunlight they absorb, thus ...
Environment
Oct 1, 2015
10
79
As a raindrop falls through the atmosphere, it can attract tens to hundreds of tiny aerosol particles to its surface before hitting the ground. The process by which droplets and aerosols attract is coagulation, a natural ...
Earth Sciences
Aug 28, 2015
0
911
A first global scale study has estimated how forest emitted compounds affecting cloud seeds via formation of low-volatility vapours. According to the latest projections, terrestrial vegetation emits several million tons of ...
Environment
May 26, 2015
1
140
For the past 20 years, a large portion of the particles measured in the atmosphere were missing from models. At best, models were able to explain one-tenth of the carbon-rich secondary organic aerosols, or SOA, measured in ...
Earth Sciences
May 12, 2015
0
31
A new agreement between the United States and the European Organization for Nuclear Research (CERN) signed today will pave the way for renewed collaboration in particle physics, promising to yield new insights into fundamental ...
General Physics
May 7, 2015
1
90
