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Latest Polar ice cap Stories

d9ceca0033c635f711439b2f526b45221
2011-04-22 06:05:00

New research shows that hostile conditions on Mars were much worse 600,000 years ago than they are today, with evidence suggesting the red planet once had a much dustier, stormier atmosphere. NASA's Mars Reconnaissance Orbiter (MRO) discovered that the total amount of atmosphere on Mars changes significantly as the tilt of the planet's axis varies.  The process can affect the stability of liquid water -- if it exists on the surface "“ and can also increase the frequency and...

2011-04-21 13:00:00

WASHINGTON, April 21, 2011 /PRNewswire-USNewswire/ -- NASA's Mars Reconnaissance Orbiter (MRO) has discovered the total amount of atmosphere on Mars changes dramatically as the tilt of the planet's axis varies. This process can affect the stability of liquid water if it exists on the Martian surface and increase the frequency and severity of Martian dust storms. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) Researchers using MRO's ground-penetrating radar identified a...

cd5b77f8c42f6f58998f3eab0a5d7adb1
2011-04-11 06:25:10

By Kim DeRose, UCLA By studying fossilized mollusks from some 3.5 million years ago, UCLA geoscientists and colleagues have been able to construct an ancient climate record that holds clues about the long-term effects of Earth's current levels of atmospheric carbon dioxide, a key contributor to global climate change. Two novel geochemical techniques used to determine the temperature at which the mollusk shells were formed suggest that summertime Arctic temperatures during the early Pliocene...

b53b47d7e3a6b22b602e69f04dbcc6881
2011-04-11 06:15:00

To guarantee ESA's CryoSat mission is delivering the best data possible, scientists have set out on a major expedition to the Arctic "“ part of a collaborative effort between ESA and NASA to gather ice measurements as the satellite orbits above. CryoSat was launched a year ago today to monitor the changes in the thickness of marine ice in the polar oceans and in the vast ice sheets that blanket Greenland and Antarctica. Orbiting closer to the poles than any other satellite and carrying...

da4de995f69dc14a9e349f4d900e7f771
2011-03-16 07:40:00

Researchers and flight crew arrived in Thule, Greenland, on Monday, March 14, for the start of NASA's 2011 Operation IceBridge, an airborne mission to study changes in Arctic polar ice. This year's plans include surveys of Canadian ice caps and expanded international collaboration. The state of Earth's polar ice sheets, glaciers and sea ice is an important indicator of climate change and plays a key role in regulating global climate. With IceBridge, NASA is pushing ahead with its commitment...

2011-03-15 12:00:00

WASHINGTON, March 15, 2011 /PRNewswire-USNewswire/ -- Researchers and flight crew arrived in Thule, Greenland, on Monday, March 14, for the start of NASA's 2011 Operation IceBridge, an airborne mission to study changes in Arctic polar ice. This year's plans include surveys of Canadian ice caps and expanded international collaboration. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) The state of Earth's polar ice sheets, glaciers and sea ice is an important indicator of...

f0704d5a579d307fc266d11af8ecdbed1
2011-03-09 08:45:00

Ice sheets have been losing mass at an accelerated rate over the past two decades, and these changes could soon become the dominant contributor to rising global sea levels, a NASA-funded study has discovered. The results of the nearly 20-year satellite research project--the longest study ever to track changes in polar ice sheet mass--showed that ice sheets in Greenland and the Antarctic lost an average of 475 gigatons of combined mass annually. Each gigaton is roughly equal to 2.2 trillion...

90c277d029b2700a26debb63842e83901
2010-09-23 13:54:24

Scientists may have solved the mystery of the carbon dioxide ice disappearance early in the Northern Martian springs followed later by its sudden reappearance, revealing a very active water cycle on the planet. Dr. Bernard Schmitt and Mr. Thomas App©r© are reporting their results about water ice mobility during Martian Year 28, at the European Planetary Science Congress in Rome from Wednesday 22nd to Friday 24th September. Seasonal ice deposits are one of the most important Martian...

2010-09-01 14:24:00

GREENBELT, Md., Sept. 1 /PRNewswire-USNewswire/ -- Operation IceBridge - a NASA airborne mission to observe changes in Earth's rapidly changing polar land ice and sea ice - is soon to embark on its fourth field season in October. The mission is now paralleled by a campaign to bring data to researchers as quickly as possible and to accelerate the analysis of those changes and how they may affect people and climate systems. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) (Logo:...

8af96c5a7527f4d076afbaecd7ef53961
2010-06-28 06:35:00

A chain of past natural events may hold lessons for the future Scientists still puzzle over how Earth emerged from its last ice age, an event that ushered in a warmer climate and the birth of human civilization. In the geological blink of an eye, ice sheets in the northern hemisphere began to collapse and warming spread quickly to the south. Most scientists say that the trigger, at least initially, was an orbital shift that caused more sunlight to fall across Earth's northern half. But how...


Word of the Day
omadhaun
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.