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Solar Wind Rips Up Martian Atmosphere

IHateEverybody writes "Scientists have found evidence that the solar wind is ripping off chunks of the Martian atmosphere, which could possibly explain why Mars has such a thin atmosphere today. The chunks are being ripped up along 'magnetic umbrellas,' which are bubbles of magnetic fields which rise from the ground and extend above the Martian atmosphere. This is surprising because scientists previously thought that these magnetic umbrellas protected the Martian atmosphere. Now it looks like exactly the opposite might be true."

Mars Lander Faces Slow Death

Riding with Robots writes "It's the beginning of the end for the Phoenix Mars Lander. As winter approaches in the Martian arctic, NASA says it's in a 'race against time and the elements' in its efforts to prolong the robotic spacecraft's life. Starting today, mission managers will begin to gradually shut the lander's systems down, hoping to conserve dwindling solar power and thereby extend the remaining systems' useful life. 'Originally scheduled to last 90 days, Phoenix has completed a fifth month of exploration in the Martian arctic. As expected, with the Martian northern hemisphere shifting from summer to fall, the lander is generating less power due to shorter days and fewer hours of sunlight reaching its solar panels. At the same time, the spacecraft requires more power to run several survival heaters that allow it to operate even as

Martian deep freeze: NASA's Mars Lander dies in the dark

FRAMINGHAM - After five months digging up and analyzing soil samples on Mars, verifying the existence of ice and noting that snow falls from Martian skies, NASA's Phoenix Mars Lander has gone silent.

Martian Atmosphere Shredded By Solar Winds

Researchers have found new evidence that the atmosphere of Mars is being stripped away by solar wind. It's not a gently continuous erosion, but rather a ripping process in which chunks of Martian air detach themselves from the planet and tumble into deep space. This surprising mechanism could help solve a longstanding mystery about the Red Planet.

The Martian Ice-Filled, Oyster Shell-Shaped Crater (HiRISE Images)

This striking view of the Martian surface shows a stark contrast (false colour) between ice deposits and layered deposits (composed mainly of ice, rock and regolith) on the edge of the polar ice cap. In the centre, there is a lone crater, approximately 200 meters in diameter, collecting a basinful of ice. The ice is thought to have been there for about 10,000 years.

NASA orbiter reveals buried Martian glaciers

The ground-penetrating radar aboard NASA's Mars Reconnaissance Orbiter (MRO) has identified extensive Martian glaciers buried under "protective blankets of rocky debris".

Solar Wind Rips Up Martian Atmosphere

Researchers have found new evidence that the atmosphere of Mars is being stripped away by solar wind. It's not a gently continuous erosion, but rather a ripping process in which chunks of Martian air detach themselves from the planet and tumble into deep space. This surprising mechanism could help solve a longstanding mystery about the Red Planet.

NASA: Lander may not survive Martian winter

(CNN) -- The Phoenix Mars Lander has entered a state of suspended operation called "safe mode" due to low power, mission managers said Thursday. And while they hope to recharge batteries and reactivate the spacecraft in the coming days, they say the rapid onset of the Martian winter means Phoenix's days are severely numbered.

NASA's Mars Reconnaissance Orbiter sees Weaving Colors in the Martian Atmosphere

Like Navajo weavers, scientists use whatever tints they want to create a finished product. Here, brilliant hues show light in the Martian atmosphere that is invisible to humans. The different colors of light, called infrared light, indicate temperature, dust, and ice from the surface up to 50 miles high.

Mars Has Its Own Wrinkles

The latest images sent by the Martian human-made explorers and orbiters show, in more detail, how the sand ripples scar the planet's surface in some regions, which allows scientists to build up on their existing theories related to their formation, or to come up with entirely new ones. Yet, as we lack more accurate data, we're still in the realm of presumption. The ripples are not to be mistaken for the huge Martian dunes, as they are much smaller in dimension, but still larger than any sand ripple on the surface of the Earth.

Mars Lander Starts Winter Shutdown

This image, taken by Phoenix's Surface Stereo Imager (SSI) on Saturday, Oct. 19, 2008 (sol, or Martian day, 142) shows Martian dirt piled on top of the spacecraft's deck and some of its instruments. In the upper-left are several wet chemistry cells of the lander's Microscopy, Electrochemistry, and Conductivity Analyzer (MECA). In the lower right is the Thermal and Evolved-Gas Analyzer. The excess sample delivered to the MECA’s sample stage can be seen on the deck in the lower left portion of the image. Credit: NASA/JPL-Caltech/University of Arizona/Max Planck Institute

RIP Mars Phoenix Lander

Mars Phoenix Lander finalAfter five months of scraping and digging into the soil at a lonely spot near the Martian north pole, NASA’s Mars Phoenix Lander has finally succumbed to the cold, dark Martian winter. NASA scientists announced yesterday that they hadn’t received a communication from the lander since November 2, and pronounced the death of Phoenix.

Martian Soil Ready for Robotic Laboratory Analysis

Credit: NASA/JPL-Caltech/University of Arizona/Max Planck Institute, Posted on: Friday, 28 November 2008, 07:49 CST Download full size image

Martian Glaciers Could Help Astronauts

Low, wide glaciers half a mile thick adorn the middle latitudes of Mars, say scientists who used radar probes to peer into debris-covered formations.

Martian deep freeze: NASA's Mars Lander dies in the dark

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A Martian's view of Mars

Remarkable new images taken by Nasa rover vehicles on the surface of the Red Planet show a rocky, barren desert that looks surprisingly like home

Massive Martian Glaciers Found

Kozar_The_Malignant writes "Scientific American is reporting that 'data from the Mars Reconnaissance Orbiter point to vast glaciers buried beneath thin layers of crustal debris.' Data from the surface-penetrating radar on MRO revealed that two well-known mid-latitude features are composed of solid water ice. One is about three times the size of the City of Los Angeles. This certainly makes the idea of establishing a station on Mars far more plausible."

Martian deep freeze: NASA's Mars Lander dies in the dark

2 Billion for the new Mars rover project sounds cheap. We could have sent 75 of these missions for one...

Due to massive Martian dust storms, NASA announced Tuesday its Spirit Mars rover is running out of power.

This undated handout is a NASA illustration of one of its two six-wheeled rovers£¬Opportunity and Spirit, operating on the surface of Mars, searching for geological evidence about water in the bygone Martial environment. (Xinhua/Reuters Photo)

NASA's has revealed vast Martian glaciers of water ice under protective blankets of rocky debris on Mars.

Analysis of recent soil samples taken by of Phoenix lander's from Mars has found possible traces of perchlorate, a highly oxidizing substance, NASA scientists reported Tuesday.

NASA probe finds opals in Martian crevices

A NASA space probe orbiting Mars has discovered deposits of opals in the mighty Valles Marineris canyon system* east of Tharsis. Opals aren't valuable enough to justify interplanetary trade, but the discovery is significant as it suggests that liquid water existed on Mars a billion years more recently than had been thought.

NASA rover low on power from Martian dust storm

NASA's Spirit rover, which is nearing its fifth year on Mars, is struggling to survive after a dust storm sapped its power, mission scientists said Tuesday.

NASA rover low on power from Martian dust storm

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ET on ice: underground glaciers could hold key to Martian life

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