News tagged with polar cap


A chunk of ice that started to break away from the Antarctic Wilkins Ice Shelf in 2008

Ghost alps of Antarctica are glimpsed after 14 million years

Space & Earth / Earth Sciences

created Jun 03, 2009 | popularity 3.6 / 5 (18) | comments 2

Millions of years ago, rivers ran in Antarctica through craggy mountain valleys that were strangely similar to the European Alps of today, Chinese and British scientists reported on Wednesday.


Mars polar cap mystery solved

Mars polar cap mystery solved

Space & Earth / Space Exploration

created Sep 22, 2008 | popularity 4.5 / 5 (33) | comments 0

(PhysOrg.com) -- Scientists are now able to better explain why Mars’s residual southern ice cap is misplaced, thanks to data from ESA’s Mars Express spacecraft - the martian weather system is to blame. And ...





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Governor opposes polar bear protection

Space & Earth / Environment

created Nov 02, 2007 | popularity 3 / 5 (10) | comments 2

Environmentalists say Alaska Gov. Sarah Palin is skating on thin ice with her opposition to efforts to protect polar bears.


On their trip, Pen Hadow (R) and Ann Daniels found the average thickness of the ice floes was 1.8 metres

Arctic ice cap 'to disappear in future summers'

Space & Earth / Earth Sciences

created Oct 15, 2009 | popularity 2.7 / 5 (31) | comments 21

The Arctic ice cap will disappear completely in summer months within 20 to 30 years, a polar research team said as they presented findings from an expedition led by adventurer Pen Hadow.


HiRISE Sees Signs of an Unearthly Spring on Mars

HiRISE Sees Signs of an Unearthly Spring on Mars

Space & Earth / Space Exploration

created Mar 25, 2009 | popularity 4.5 / 5 (6) | comments 0

(PhysOrg.com) -- New images from the HiRISE experiment detail patterns of dust carried by gas from beneath the seasonal ice cap.


Icy Promethei Planum

Icy Promethei Planum

Space & Earth / Space Exploration

created Mar 12, 2008 | popularity 3.8 / 5 (17) | comments 4

Promethei Planum, an area seasonally covered with a more than 3500 m thick layer of ice in the martian south polar region, was the subject of the High Resolution Stereo Camera’s focus on 22 September 2005 ...


Martian Polar Layer Erosion Looks Striking

Martian Polar Layer Erosion Looks Striking

Space & Earth / Space Exploration

created Oct 16, 2008 | popularity 4.3 / 5 (13) | comments 4

(PhysOrg.com) -- An odd, solitary hill rising part-way down an eroding slope in Mars' north polar layered terrain may be the remnant of a buried impact crater, suggests a University of Arizona planetary scientist ...


NASA Satellite Finds Interior of Mars Is Colder

NASA Satellite Finds Interior of Mars Is Colder

Space & Earth / Space Exploration

created May 15, 2008 | popularity 4.4 / 5 (22) | comments 2

New observations from NASA's Mars Reconnaissance Orbiter indicate that the crust and upper mantle of Mars are stiffer and colder than previously thought.


Vast expanses of Arctic ice melt in summer heat (AP)

Vast expanses of Arctic ice melt in summer heat

Space & Earth / Environment

created Aug 09, 2009 | popularity 4 / 5 (15) | comments 5

(AP) -- The Arctic Ocean has given up tens of thousands more square miles (square kilometers) of ice on Sunday in a relentless summer of melt, with scientists watching through satellite eyes for a possible ...


Ulysses scores a hat-trick

Ulysses scores a hat-trick

Space & Earth / Space Exploration

created Feb 07, 2007 | popularity 2.8 / 5 (6) | comments 0

Today the joint ESA-NASA Ulysses mission has marked another high point in its mission. For the third time in a long and highly successful career, Ulysses has reached its maximum south solar latitude of 80 degrees ...


British explorers Pen Hadow (left) and Ann Daniels

British team trek to North Pole to measure sea ice

Space & Earth / Earth Sciences

created Mar 01, 2009 | popularity 4.7 / 5 (36) | comments 3

Three British explorers have set out on a 90-day skiing expedition to the North Pole, measuring sea ice thickness the whole way to find out exactly how fast it is disappearing, according to the Catlin Arctic ...


Polar bears at risk from ice loss

Other Sciences /

created Oct 14, 2005 | popularity 2.7 / 5 (3) | comments 0

Survival of the remaining polar bears is increasingly jeopardized by rapid disappearance of the arctic sea ice, conservation groups say.



List of search results for polar cap