News tagged with upper stratosphere

Upper atmosphere facilitates changes that let mercury enter food chain

Humans pump thousands of tons of vapor from the metallic element mercury into the atmosphere each year, and it can remain suspended for long periods before being changed into a form that is easily removed from the atmosphere.

Space & Earth / Environment

created Dec 18, 2011 | popularity 5 / 5 (2) | comments 17 | with audio podcast

NASA's Unpiloted Global Hawk Completes First Science Flight

(PhysOrg.com) -- NASA has successfully completed the first science flight of the Global Hawk unpiloted aircraft system over the Pacific Ocean. The flight was the first of five scheduled for this month's Global ...

Space & Earth / Earth Sciences

created Apr 09, 2010 | popularity 4.7 / 5 (3) | comments 1

Stratospheric Water Vapor is a Global Warming Wild Card

A 10 percent drop in water vapor ten miles above Earth’s surface has had a big impact on global warming, say researchers in a study published online January 28 in the journal Science. The findings might help e ...

Space & Earth / Earth Sciences

created Jan 28, 2010 | popularity 4.3 / 5 (21) | comments 29 | with audio podcast

'Ultra-primitive' particles found in comet dust

Dust samples collected by high-flying aircraft in the upper atmosphere have yielded an unexpectedly rich trove of relicts from the ancient cosmos, report scientists from the Carnegie Institution. The stratospheric ...

Space & Earth / Space Exploration

created Nov 02, 2009 | popularity 4.9 / 5 (9) | comments 2

Ozone layer depletion leveling off

By merging more than a decade of atmospheric data from European satellites, scientists have compiled a homogeneous long-term ozone record that allows them to monitor total ozone trends on a global scale - ...

Space & Earth / Earth Sciences

created Sep 21, 2009 | popularity 3 / 5 (4) | comments 0

Discovery of New Microorganisms in the Stratosphere

(PhysOrg.com) -- Three new species of bacteria, which are not found on Earth and which are highly resistant to ultra-violet radiation, have been discovered in the upper stratosphere by Indian scientists. One ...

Biology / Cell & Microbiology

created Mar 18, 2009 | popularity 4.7 / 5 (15) | comments 3