Open ocean clouds have been found to contain biological substances that can be traced to the waters where they formed.
The rare types of wispy, blue-white clouds form when water molecules freeze around 'meteor smoke' close to the edge of space.
It has been the summer of pyrocumulus in the western United States. Fire-charged giant clouds have been spotted yet again launching from fires in Idaho. Continue reading →
Airplanes that take off or land at airports where certain atmosphere conditions prevail can pierce mid-level clouds with unusual round shapes that lead to brief showers of snow or rain.
A new threshold for flying around volcanic ash plumes will lead to less delays and cancellations during the current Icelandic eruption.
New experiments by NASA scientists show how carbon dioxide in the atmosphere acts as the "control knob" for climate change.
Plant-eating bacteria can fly up into clouds and influence the weather. The big question is by how much.
New climate modeling shows that the response of clouds to global change worsens the warming trend.
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