News tagged with arctic soil

Arctic soil reveals climate change clues

Oct 08, 2008 | 4 / 5 (11) | 0

Frozen arctic soil contains nearly twice the greenhouse-gas-producing organic material as was previously estimated, according to recently published research by University of Alaska Fairbanks scientists.

Search results for arctic soil

Phoenix Scrapes to Icy Soil in Wonderland

Space & Earth / Space Exploration

Jun 30, 2008 | 4.1 / 5 (7) | 1

NASA's Phoenix Mars Lander scraped to icy soil in the "Wonderland" area on Thursday, June 26, confirming that surface soil, subsurface soil and icy soil can be sampled at a single trench.

Arctic land and seas account for up to 25 percent of world's carbon sink

Space & Earth / Earth Sciences

Oct 14, 2009 | 3.1 / 5 (8) | 0

In a new study in the journal Ecological Monographs, ecologists estimate that Arctic lands and oceans are responsible for up to 25 percent of the global net sink of atmospheric carbon dioxide. Under curren ...

Phoenix Scrapes 'Almost Perfect' Icy Soil for Analysis

Space & Earth / Space Exploration

Jul 01, 2008 | 4.2 / 5 (22) | 8

NASA's Phoenix Mars Lander enlarged the "Snow White" trench and scraped up little piles of icy soil on Saturday, June 28, the 33rd Martian day, or sol, of the mission. Scientists say that the scrapings are ...

Analysis Begins on Deepest Martian Soil Sample

Space & Earth / Space Exploration

Sep 02, 2008 | 4.5 / 5 (6) | 0

(PhysOrg.com) -- Scientists have begun to analyze a sample of soil delivered to NASA's Phoenix Mars Lander's wet chemistry experiment from the deepest trench dug so far in the Martian arctic plains. Phoenix ...

Thawing permafrost likely to boost global warming

Biology /

Sep 01, 2008 | 3.7 / 5 (7) | 0

The thawing of permafrost in northern latitudes, which greatly increases microbial decomposition of carbon compounds in soil, will dominate other effects of warming in the region and could become a major force promoting the ...

Artist's concept of Phoenix on the surface of Mars

Mars probe Phoenix flexes robotic arm

Space & Earth / Space Exploration

May 29, 2008 | 4 / 5 (9) | 0

NASA's Phoenix Mars lander flexed its robotic arm Thursday in a successful test of the key element in the probe's mission to investigate the Red Planet's soil for conditions conducive to life, NASA said.

Cave study links climate change to California droughts

Space & Earth / Earth Sciences

Nov 10, 2009 | 4.3 / 5 (6) | 0

California experienced centuries-long droughts in the past 20,000 years that coincided with the thawing of ice caps in the Arctic, according to a new study by UC Davis doctoral student Jessica Oster and geology professor ...

Phoenix Heads for Mars

Space & Earth / Space Exploration

Aug 04, 2007 | 4.8 / 5 (18) | 0

A Delta II rocket lit up the early morning sky over Cape Canaveral Air Force Station in Florida as it carried the Phoenix spacecraft on the first leg of its journey to Mars. The powerful three-stage rocket ...

Permafrost threatened by rapid retreat of Arctic sea ice, study finds

Space & Earth / Earth Sciences

Jun 10, 2008 | 3.5 / 5 (18) | 4

The rate of climate warming over northern Alaska, Canada, and Russia could more than triple during periods of rapid sea ice loss, according to a new study led by the National Center for Atmospheric Research (NCAR). The findings ...