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Latest Mare Australe quadrangle Stories

Martian Surface Changes With The Seasons
2013-01-25 08:51:40

[ Watch the Video: Mars Dry Ice and Dunes ] April Flowers for redOrbit.com - Your Universe Online A new study, led by the Planetary Science Institute's Senior Scientists Candice Hansen, shows that the spring thaw on Mars leads to a variety of geologic changes on the planet's surface. Frozen carbon dioxide, also known as dry ice, is deposited on the dunes surrounding the north pole's permanent water ice polar cap. In the spring, as it begins to sublimate, or change directly from a...

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2008-09-22 13:40:00

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 so is the largest impact crater on Mars "“ even though it is nowhere near the south pole. Like Earth, Mars has frozen polar caps, but unlike Earth, these caps are made of carbon dioxide ice as well as water ice. During the southern hemisphere's summer, much of the ice cap sublimates, a process in...

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2007-02-01 17:55:00

By ALICIA CHANG LOS ANGELES (AP) - Scientists are scrambling to find an alternative landing site for a long-armed robot set to launch this summer on a mission to dig into Mars' icy north pole to search for signs of primitive life. The original landing spot was nixed after images beamed back by the eagle-eyed Mars Reconnaissance Orbiter unexpectedly showed scores of bus-sized boulders littered over old crater rims on flat plains. The gigantic rocks pose a danger to NASA's Phoenix Mars lander,...

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2006-08-16 17:30:00

Every spring brings violent eruptions to the south polar ice cap of Mars, according to researchers interpreting new observations by NASA's Mars Odyssey orbiter. Jets of carbon dioxide gas erupting from the ice cap as it warms in the spring carry dark sand and dust high aloft. The dark material falls back to the surface, creating dark patches on the ice cap which have long puzzled scientists. Deducing the eruptions of carbon dioxide gas from under the warming ice cap solves the riddle of the...


Word of the Day
endocarp
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'kardia,' heart.
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