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2006-12-13 13:00:00

SAN FRANCISCO -- Layers on Mars are yielding history lessons revealed by instruments flying overhead and rolling across the surface. Some of the first radar and imaging results from NASA's newest Mars spacecraft, the Mars Reconnaissance Orbiter, show details in layers of ice-rich deposits near the poles. Observed variations in the layers' thickness and composition will yield information about recent climate cycles on the red planet. NASA's Mars Exploration Rover Opportunity has photographed...

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2006-10-16 15:40:00

For a number of decades now, astronomers have wondered about water on Mars. Thanks to ESA's Mars Express, much of the speculation has been replaced with facts. Launched on 2 June 2003, Mars Express has changed the way we think of Mars. Since the Viking missions of the 1970s, planetary scientists have changed their perception of water on Mars several times, passing from the picture of a dry planet to that of a warmer and wetter one. Mars Express's data are now shading a new light on the...

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2006-09-12 22:05:00

JPL - NASA's newest spacecraft at Mars has completed the challenging half-year task of shaping its orbit to the nearly circular, low-altitude pattern from which it will scrutinize the planet. The Mars Reconnaissance Orbiter fired its six intermediate-size thrusters for 12.5 minutes Monday afternoon, Sept. 11, shifting the low point of its orbit to stay near the Martian south pole and the high point to stay near the north pole.  The altitude of the orbit ranges from 250 kilometers (155...

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2005-09-15 13:05:00

Dr. Jack Farmer of Arizona State University is an astrobiologist whose attention is often focused on Mars. Farmer is a longtime member of a community of scientists working to understand both the geologic history of Mars and the planet's potential to support life. At the recent Earth System Processes II conference, Farmer gave a talk on the current state of understanding about Mars: what we know and what we'd like to know. In this, the second of a three-part series, he discusses what...

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2005-08-25 06:50:00

The Mars Reconnaissance Orbiter launched on August 12, and when it arrives at Mars it will search for evidence of water in the martian atmosphere, surface, and subsurface. This orbiter also will provide detailed surveys of the planet, identifying any obstacles that could jeopardize the safety of future landers and rovers. Astrobiology Magazine -- The Mars Reconnaissance Orbiter launched on August 12, and now is on its seven-month journey to the Red Planet. Once there, MRO will search for...

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2005-01-26 07:05:32

NASA -- Every 26 months, the Solar System's planetary dance brings Mars and Earth closer than usual, providing an ideal chance to launch a mission to the Red Planet. In 2001, NASA's Mars Odyssey launched to study its climate. Two years later, twin Mars Exploration Rovers Spirit and Opportunity began a mission that confirmed water once existed on Mars. This summer, when the Red Planet and Earth again swing closer together, NASA will embark on its most exciting and promising mission to the...

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2005-01-07 16:40:00

JPL -- Even as the Spirit and Opportunity rovers complete a year of successful operation on Mars, the next major step in Mars Exploration is taking shape with preparation of NASA's Mars Reconnaissance Orbiter for launch in just seven months. The orbiter is undergoing environmental tests in facilities at Lockheed Martin Space Systems in Denver, Colo., where its Atlas V launch vehicle is also being prepared. Developments are on schedule for a launch window that begins on Aug. 10. "The...


Word of the Day
glogg
  • Scandinavian punch made of claret and aquavit with spices and raisins and orange peel and sugar.
This word comes from the Swedish 'glogg,' which is an alteration of 'glodgat,' mulled (wine).
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