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Latest Aeronomy of Ice in the Mesosphere Stories

2009-05-19 16:23:18

U.S. scientists say they've made the first direct observations of biological particles in high-altitude clouds. A team of atmospheric chemists led by Kimberly Prather and Kerri Pratt of the Scripps Institution of Oceanography at the University of California-San Diego sampled water droplet and ice crystal residues at high speeds while flying through clouds in the skies over Wyoming. An analysis revealed the particles were made up nearly entirely of either dust or biological material, such as...

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...


Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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