Mars

  • Lakeside Landing
    Gusev Crater, one of the landing sites proposed for the upcoming missions to Mars, is believed to the site of an ancient lakebed. By landing there, NASA hopes to learn more about Mars's watery past.
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  • Red Rovers: Returning to Mars
    NASA will launch two rovers to Mars in the late spring of this year. In this, the first of two articles on potential landing sites, we will examine one of the leading candidates, Meridiani Planum.
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  • Martian Liquid Center
    By watching the tidal pull on their orbitting Global Surveyor spacecraft, scientists have confirmed that Mars has a liquid iron core, much like Earth and Venus. Many astrobiologists conclude that such a molten and magnetic interior is critical to developing life.
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  • 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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