Mars

  • Mars: Tilting towards Life?
    Where is the best place on Mars to look for evidence of life? At the poles, says one scientist. Although frozen solid today, in past eras, when Mars was more highly tilted, the poles were warm enough for liquid water to form.
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  • Evidence of Snow on Mars – and Perhaps an Abode for Life?
    Erosion patterns inside craters on Mars suggest a snowy cycle to water runoff. The Mars Odyssey team has proposed a new model that brings the prospect of liquid water closer to the surface.
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  • Martian Water, Water Everywhere…
    Using hydrogen to track down sub-surface water on Mars, Los Alamos scientists may have accounted for enough buried in the poles and soil to cover the entire planet ankle-deep.
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  • Hot Martian Heartbeats: Seasonal Valentine
    The Mars Orbital Camera captured these South Pole changes over a two year span, as entire hills and mesas reshaped and dry ice sublimed seasonally. The time-sequence shows the remarkable changing geography of a planet in flux-perhaps moving out of the last Martian Ice Age.
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  • The Many Martian Face Lifts
    How old the Martian surface might be, affects estimates for its potential time to develop or sustain possible life. A new estimate for when volcanoes might have covered up ancient crater impacts, has geologists recounting the age of Mars.
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  • Early Mars: Oceans Away?
    The surface of Mars is scarred by ancient river valleys, apparently carved by liquid water. But was Mars warm and wet continuously for millions of years - or only temporarily when massive asteroids slammed into it? The likelihood of life on Mars may depend on
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  • Stargazers To See Red
    2003 promises a Martian close approach not witnessed in more than 50,000 years--since early humans started cave-painting. Indeed, the astronomical year ahead promises to be painted red for stargazers.
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  • Roses for the Red Planet
    At a conference on terraforming Mars, one topic of discussion was the importance - and the risks - of seeding the Red Planet.
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  • Build Your Own Planet
    Build your own virtual planet, complete with weather, habitable tropics and a tunable thermostat. In reality, changing an entire biosphere would dwarf the limits of engineers' most grand projects: Hoover Dam, Suez and Panama Canals, or hurricane cloud-seeding.
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  • Mars: Cold, Dry, Red and Dead?
    The theory of a warm, wet past for Mars comes under scrutiny based on impact craters analyzed by a Colorado and NASA Ames research team. Their new Science article looks at the implications for ancient life on the Red Planet - if indeed, the weather
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  • Name The Extreme Explorers
    Don't miss the January deadline to name the Mars Exploration Rovers, scheduled to launch towards the red planet in June and roam the distance of a football field each day.
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  • Where on Earth is Mars?
    Among the thousands of visitors to Mt. Etna this year, one group came not just to look at one of most famous volcanoes on Earth. Dozens of scientists trekked up Etna together this fall to observe what Etna has in common with Mars.
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  • Smoking Craters: Home to Martian Life?
    Mars may be smaller than Earth, but it's still huge to a roving spacecraft that can cover only 100 meters a day. For that reason, Mars mission planners must go to great lengths to find landing sites that might still carry evidence that life once
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  • Five Year Retrospective: Mars Pathfinder
    Five years ago today, on September 27, 1997, the Mars Pathfinder lander began to tally up its remarkable mission history. The excitement was non-stop beginning only 3 minutes after landing, when the first signals of success came back to rapt Earth-bound listeners.
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  • No Drought of Mars Landing Sites
    With the Mars Exploration Rover (or MER) landing sites narrowed from 150 alternatives, the prospect of roaming around ancient lakebeds or searching for the grey crystals called hematite has orbital cameras clicking.
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