And the prospect of a return to normal air travel remains far from clear.
For example, because normal air conditioning is inadequate for lunar conditions, we were required to use cold water to cool the interior of our suits.
Package tourists were invited to wing their way in for two weeks at the grandest hotels for the price of half the normal air fare.
He enriched the oxygen or the carbon dioxide in the air breathed by experimental subjects and found not a hint of suppression or exacerbation of yawning compared with control subjects breathing normal air.
Returning grounded units to be ready for missions will require additional funds beyond Air Combat Command's normal budget, according to Air Force officials.
"They will go beyond the normal ban on air travel within a three nautical-mile radius.. and up to 3, 000 feet above ground, " Shumann said.
When the mice were given pure air again, they returned to normal within less than 30 minutes.
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Early indications are that the Lion Air jet's approach was normal until perhaps the last minutes of the flight, said safety experts who have reviewed publicly available data.
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Airbus is now being forced to unveil its latest ideas by mid-June, instead of waiting for the Farnborough Air Show in July, the normal showcase for new aircraft.
In the end, all of the mice exposed to air pollution, including those fed a normal diet, had increased abdominal and subcutaneous (under the skin) fat.
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Breathing particulate-laden (aka smoggy) air may be hardening your arteries faster than normal, according to research published today in PLOS Medicine.
The energy that comes into it from the sun is absorbed by air molecules and reradiated to space during the normal ups and downs in solar energy that occur over a roughly 11-year time span.
The Royal Air force has stressed that the posting is a normal part of Prince William's training and says he will not perform any ceremonial duties.
The pattern is common when La Nina -- the cooler than normal waters in the Eastern Equatorial Pacific -- influences upper air patterns across the southern United States.
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The air pressure is also now closer to what is normal in Denver, Colorado -- the mile-high city at 5, 280ft -- than the traditionally higher, and more mountaintop-like standard of 8, 000ft above sea level, sparing fliers from the mild altitude sickness that can be experienced when flying a long distance.
Sometimes it makes sense to look outside of your normal circle to find ideas that might bring a breath of fresh air into an organization.
Colder than normal weather is likely on tap for at least another week, as air flows into the region from the north, instead of the south, said Dunham, the meteorologist.
"I think unfortunately, 2012 really may well be the new normal, " said Daniel Lashof, director of the climate and clean air program at the Natural Resources Defense Council, a U.S. environmental group.
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