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Latest Noctilucent cloud Stories

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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...

41e6556b9f611b5837f8d6e768cd0b3b1
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...

bec031d382e5e18cc34e874dd51c29831
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...

4d0883e5833e88d38cabf1bd87c67d6d1
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...