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Latest Noctilucent cloud Stories

2008-01-03 10:02:49

HAMPTON, Va. -- A Hampton University professor is shedding new light on night-shining clouds that might be affected by climate change. Jim Russell is the lead scientist for the NASA-funded AIM satellite, the first to study the wispy "noctilucent" clouds, which only appear above Earth's poles. Russell, an atmospheric science professor, has found that the clouds get brighter and stretch farther as the uppermost atmosphere gets colder. He thinks that the changes might be caused by...

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2007-06-30 00:10:00

A NASA satellite has captured the first occurrence this summer of mysterious shiny polar clouds that form 50 miles above Earth's surface. The first observations of these "night-shining" clouds by a satellite named "AIM" which means Aeronomy of Ice in the Mesosphere, occurred above 70 degrees north latitude on May 25. People on the ground began seeing the clouds on June 6 over Northern Europe. AIM is the first satellite mission dedicated to the study of these unusual clouds. These mystifying...

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2007-04-25 17:15:00

VANDENBERG AIR FORCE BASE, Calif. -- A rocket carrying a NASA spacecraft was launched Wednesday on a first-ever mission to study mysterious clouds that float 50 miles above Earth. The noctilucent clouds, which cluster around the polar regions and can only been seen at night, have appeared more often and grown brighter in recent years. Scientists are puzzled by the changes, but some suggest they may be due to global climate change. The spacecraft, which will spend two years studying the ice...

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2007-04-12 16:57:10

WASHINGTON - NASA is preparing to launch the Aeronomy of Ice in the Mesosphere (AIM) spacecraft, the first mission dedicated to exploration of mysterious ice clouds that dot the edge of space in Earth's polar regions. These clouds have grown brighter and more prevalent in recent years and some scientists suggest that changes in these clouds may be the result of climate change. The first opportunity for launch is on Wednesday, April 25 from Vandenberg Air Force Base, Calif., aboard a Pegasus...

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2006-08-28 13:10:00

Planetary scientists have discovered the highest clouds above any planetary surface. They found them above Mars using the SPICAM instrument on board ESA's Mars Express spacecraft. The results are a new piece in the puzzle of how the Martian atmosphere works. Until now, scientists had been aware only of the clouds that hug the Martian surface and lower reaches of the atmosphere. Thanks to data from the SPICAM Ultraviolet and Infrared Atmospheric Spectrometer onboard Mars Express, a fleeting...

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2005-07-07 14:45:00

CHAMPAIGN, Ill. -- A burst of mesospheric cloud activity over Antarctica in January 2003 was caused by the exhaust plume of the space shuttle Columbia during its final flight, reports a team of scientists who studied satellite and ground-based data from three different experiments. The data also call into question the role these clouds may play in monitoring global climate change. "Our analysis shows that the Columbia's exhaust plume approached the South Pole three days after launch," said...

2005-07-06 14:35:00

(Washington, DC "¢ July 6, 2005) "” A new study, funded in part by the Naval Research Laboratory (NRL) and the National Aeronautics and Space Administration (NASA) reports that exhaust from the space shuttle can create high-altitude clouds over Antarctica mere days following launch, providing valuable insight to global transport processes in the lower thermosphere. The same study also finds that the shuttle's main engine exhaust plume carries small quantities of iron that can be...

2005-07-07 00:05:00

CHAMPAIGN, Ill. -- A burst of mesospheric cloud activity over Antarctica in January 2003 was caused by the exhaust plume of the space shuttle Columbia during its final flight, reports a team of scientists who studied satellite and ground-based data from three different experiments. The data also call into question the role these clouds may play in monitoring global climate change. "Our analysis shows that the Columbia's exhaust plume approached the South Pole three days after launch," said...

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2005-05-25 08:10:00

University of Bath -- A new research radar based in Antarctica is giving scientists the chance to study the highest layer of the earth's atmosphere at the very edge of space. Using the new radar, scientists will be able to investigate climate change and explore the theory that while the lower atmosphere is warming, the upper atmosphere is cooling by as much as 1 degree centigrade each year. They will also be able to find out more about the complex waves, tides and other mechanisms that link...


Word of the Day
glogg
  • Scandinavian punch made of claret and aquavit with spices and raisins and orange peel and sugar.
This word comes from the Swedish 'glogg,' which is an alteration of 'glodgat,' mulled (wine).
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