Water vapor
hideWater vapor or water vapour (see spelling differences), also aqueous vapor, is the gas phase of water. Water vapor is one state of the water cycle within the hydrosphere. Water vapor can be produced from the evaporation or boiling of liquid water or from the sublimation of ice. Under normal atmospheric conditions, water vapor is continuously generated by evaporation and removed by condensation. Water vapor is a greenhouse gas along with carbon dioxide and methane.
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News tagged with water vapor
Global warming likely to be amplified by slow changes to Earth systems
Space & Earth / Earth Sciences
Dec 20, 2009 |
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Researchers studying a period of high carbon dioxide levels and warm climate several million years ago have concluded that slow changes such as melting ice sheets amplified the initial warming caused by greenhouse ...
How water forms where Earth-like planets are born
Dec 17, 2009 |
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(PhysOrg.com) -- In a study that helps to explain the origins of water on Earth, University of Michigan astronomers have found that water vapor can form spontaneously in habitable zones of solar systems, and that it develops ...
NASA Outlines Recent Breakthroughs in Greenhouse Gas Research (w/ Video)
Space & Earth / Earth Sciences
Dec 15, 2009 |
3.7 / 5 (6) |
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(PhysOrg.com) -- Researchers studying carbon dioxide, a leading greenhouse gas and a key driver of global climate change, now have a new tool at their disposal: daily global measurements of carbon dioxide ...
Cassini Sends Back Images of Enceladus as Winter Nears
Space & Earth / Space Exploration
Nov 23, 2009 |
4.4 / 5 (7) |
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(PhysOrg.com) -- NASA's Cassini spacecraft has sailed seamlessly through the Nov. 21 flyby of Saturn's moon Enceladus and started transmitting uncalibrated temperature data and images of the rippling terrain. ...
Successful Flight Through Enceladus Plume (w/ Video)
Space & Earth / Space Exploration
Nov 04, 2009 |
4.7 / 5 (3) |
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(PhysOrg.com) -- Cassini has started sending data back from its Nov. 2 flyby of Saturn's moon Enceladus.
Microwaving Water from Moondust (w/ Video)
Space & Earth / Space Exploration
Oct 08, 2009 |
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NASA is figuring out how to make water from moondust. Sounds like magic? "No magic--" says Ed Ethridge of NASA's Marshall Space Flight Center "-- just microwaves. We're showing how microwaves can extract water ...
NASA's Aqua satellite catches 2 views of super Typhoon Choi-Wan
Space & Earth / Earth Sciences
Sep 17, 2009 |
3 / 5 (1) |
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NASA's Aqua satellite again flew over Super Typhoon Choi-Wan late last night and captured visible and infrared imagery of the monster typhoon. Aqua's Atmospheric Infrared Sounder (AIRS) instrument and Moderate ...
Climate models confirm more moisture in atmosphere attributed to humans
Space & Earth / Earth Sciences
Aug 10, 2009 |
3.1 / 5 (22) |
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(PhysOrg.com) -- When it comes to using climate models to assess the causes of the increased amount of moisture in the atmosphere, it doesn't much matter if one model is better than the other.
Aura Marks Five Years of Sky-High Atmosphere Research
Space & Earth / Earth Sciences
Aug 05, 2009 |
4.8 / 5 (4) |
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Imagine Earth without an atmosphere - without clouds, wind or air. Earth's atmosphere protects, transports, and reacts to life on Earth.
Evidence for ocean on Enceladus: Tiny Saturn Moon Could Be Targeted in Search for Extraterrestrial Life
Space & Earth / Space Exploration
Jul 22, 2009 |
4.6 / 5 (16) |
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(PhysOrg.com) -- Plumes spewing from a tiny moon of Saturn - a moon roughly the width of Arizona - are filled with molecules that suggest that the moon, Enceladus, is likely another place in the solar system ...
Space shuttle science shows how 1908 Tunguska explosion was caused by a comet
Space & Earth / Earth Sciences
Jun 24, 2009 |
3.4 / 5 (19) |
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The mysterious 1908 Tunguska explosion that leveled 830 square miles of Siberian forest was almost certainly caused by a comet entering the Earth's atmosphere, says new Cornell University research. The conclusion ...
Jets on Saturn's moon Enceladus not geysers from underground ocean
Space & Earth / Space Exploration
Jun 24, 2009 |
4.1 / 5 (12) |
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Water vapor jets that spew from the surface of Saturn's icy moon Enceladus are not really geysers from an underground ocean as initially envisioned by planetary scientists, according to a study led by the ...
Back to basics: Scientists discover a fundamental mechanism for cell organization (w/Video)
May 21, 2009 |
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Scientists have discovered that cells use a very simple phase transition -- similar to water vapor condensing into dew -- to assemble and localize subcellular structures that are involved in formation of the embryo.
Cyclones spurt water into the stratosphere, feeding global warming
Space & Earth / Earth Sciences
Apr 20, 2009 |
3.6 / 5 (7) |
9
Scientists at Harvard University have found that tropical cyclones readily inject ice far into the stratosphere, possibly feeding global warming.
Report: Images from Mars lander show liquid water
Space & Earth / Space Exploration
Mar 11, 2009 |
3.3 / 5 (9) |
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(AP) -- Did NASA's Phoenix Mars lander find evidence of liquid water before it froze to death?
