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Mars Exploration Rovers Update: Spirit Finds Hematite Opportunity Discovers Signs of More Water

Posted by A.J.S. Rayl on 2004/06/25 12:00 CDT

As the Martian winter descends on Gusev Crater and Meridiani Planum, the Mars Exploration Rovers have hit the snowless slopes.

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Mars Exploration Rovers Update: Rovers Go Up Hills, Down a Crater, and May be Showing Signs of Age

Posted by A.J.S. Rayl on 2004/06/15 12:00 CDT

The twin rovers Spirit and Opportunity continue their trek across the varied surface of the Red Planet, climbing hills and descending into a crater. After a two-month journey of over 3 kilometers through rocky terrain, Spirit has now begun climbing the Columbia Hills, which were seen on the horizon in the early panoramas taken from the landing site. The rover is expected to spend much of its remaining life climbing the hills and analyzing their geological make-up. Meanwhile, on the other side of the planet, Opportunity is carefully descending into the stadium-sized depression dubbed "Endurance Crater" by the MER team. The rocky formations revealed on the slopes of the crater promise to provide some of the richest sources for studying the geological history of Mars.

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Mars Exploration Rovers Update: Spirit Uncovers More Evidence of Water Opportunity Prepares to Rove into Endurance Crater

Posted by A.J.S. Rayl on 2004/06/09 12:00 CDT

The Mars Exploration Rovers are each entering new chapters in their extended missions that are already returning more intriguing discoveries, but they are both beginning to slow down now as the Martian winter closes in on them.

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Mars Exploration Rovers Update: Spirit Closes in on Columbia Hills Opportunity Heads Back to Karatepe

Posted by A.J.S. Rayl on 2004/06/03 12:00 CDT

During the last three weeks, the Mars Exploration Rovers have been continuing to rove and explore their respective regions of Mars. Spirit has continued her trek to the Columbia Hills in the Gusev Crater area of Mars, while on the other side of the planet, at Meridiani Planum; Opportunity has been investigating Endurance Crater.

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Mars Exploration Rovers Update: Spirit Sets New Personal Best Driving Record

Posted by A.J.S. Rayl on 2004/05/07 12:00 CDT

"It has been a great week on Mars," Mars Exploration Rovers principal investigator Steve Squyres reported at a press conference yesterday at the Jet Propulsion Laboratory (JPL).

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Mars Exploration Rovers Update: Spirit Makes Tracks to Columbia Hills Opportunity Cruises into Extended Mission

Posted by A.J.S. Rayl on 2004/04/30 12:00 CDT

As Spirit continued her journey to the Columbia Hills in Gusev Crater, Opportunity cruised into her extended mission at Meridiani Planum this week, marking the milestone of the rovers' Martian adventure -- full mission success.

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Mars Exploration Rovers Update: Spirit Gets 'Kicks' on Route 66 Opportunity Solves Martian Mystery

Posted by A.J.S. Rayl on 2004/04/17 12:00 CDT

This week, the Mars Exploration Rovers team successfully installed the new flight software it was uploading to Spirit and Opportunity last weekend. Now, the rovers have enhanced capabilities that should make their remaining Martian sols even safe and more productive, announced Jan Chodas, flight software manager, at the weekly news briefing at the Jet Propulsion Laboratory (JPL).

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Mars Exploration Rovers Update: NASA Approves Extended Missions Spirit & Opportunity Receive Upgrades

Posted by A.J.S. Rayl on 2004/04/09 12:00 CDT

As the Mars Exploration Rovers achieved new milestones on the Red Planet this week, NASA approved a plan to extend the missions for both Spirit and Opportunity to mid-September.

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Mars Exploration Rovers Update: Spirit Finds Hints of Water in Mazatzal Opportunity Finds Hints of Hematite in Bounce Rock

Posted by A.J.S. Rayl on 2004/04/03 11:00 CST

The Mars Exploration Rovers continued to crank out scientific findings about Mars this week: Spirit sent home clues of past ground water at Gusev Crater; Opportunity set a one-day distance driving record and returned to the scene of her arrival, the rock she bounced off on upon landing at Meridiani Planum.

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Mars Exploration Rovers Update: Spirit Finishes Work at Bonneville Crater Opportunity Completes Study at Eagle Crater

Posted by A.J.S. Rayl on 2004/03/27 11:00 CST

The Mars Exploration Rovers each focused their research efforts this week studying the rim of a crater. At Gusev, Spirit continued her study of Bonneville Crater, while at Meridiani Planum Opportunity spent most of her time driving around the southern and eastern portions of Eagle Crater conducting a soil survey of five targets.

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Mars Exploration Rovers Update: Opportunity Emerges from Crater and Onto the Shoreline of What Once Was a Salty Sea

Posted by A.J.S. Rayl on 2004/03/23 11:00 CST

After nearly two months of study, Opportunity has emerged from her landing crater at Meridiani Planum and onto "the shoreline of what was once a salty sea suitable for life," scientists announced at a special press conference held at NASA headquarters in Washington D.C., yesterday.

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Mars Exploration Rovers Update: Spirit Too Finds Traces of Water

Posted by Amir Alexander on 2004/03/05 11:00 CST

Four days after scientists announced that rocks examined by the rover Opportunity in Meridiani Planum were once soaked with water, Opportunity's twin Spirit made some headline news of its own. In a press conference this morning at the Jet Propulsion laboratory in Pasadena, Dr. Ray Arvidson, Deputy Principal Investigator for the rovers, announced that Spirit had discovered the telltale signs that some amount water had once been present in Gusev Crater as well.

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Mars Exploration Rovers Update: Opportunity Finds Evidence of Past Liquid Water

Posted by A.J.S. Rayl on 2004/03/03 11:00 CST

The Mars Exploration Rovers have sent home the first real prize of the mission - evidence of past liquid water on the Red Planet. Opportunity -- which landed five weeks ago inside a small crater near exposed bedrock -- has found evidence that Meridiani Planum was once "drenched with water," and, thus, was once suitable for life as we know it, mission scientists announced at a press conference held NASA Headquarters yesterday.

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Mars Exploration Rovers Update: Spirit Keeps on Truckin' to Bonneville Opportunity Continues Study of Outcrop

Posted by A.J.S. Rayl on 2004/02/28 11:00 CST

Spirit and Opportunity continued their search for evidence of water at Gusev Crater and Meridiani Planum this week, and a lot of excited and smiling faces have been emanating from behind the scenes, in the mission rooms at the Jet Propulsion Laboratory (JPL).

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Mars Exploration Rovers Update: Spirit To 'Trench' Laguna Hollow; Opportunity Uncovers Shiny Spherules, Takes on El Capitan

Posted by A.J.S. Rayl on 2004/02/20 11:00 CST

The rovers have been kicking up dirt and roving to new destinations this week, as they pick up the pace and take care of their geological business on Mars.

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Mars Exploration Rovers Update: Spirit Breaks More Records; Opportunity Digs a Trench

Posted by Amir Alexander on 2004/02/17 11:00 CST

Mars driving records are falling at Gusev Crater, as the rover Spirit continues its steady progress towards the nearby crater nicknamed "Bonneville." On Sol 43, which ended on the morning of Monday, February 16, Spirit drove 19 meters (62.3 feet) in the morning and another 8.5 meters (27.9 feet) in the afternoon. The total drive of 27.5 meters (90.2 feet), breaks the Mars one day drive record of 24.4 meters (80 feet), set by Spirit only 7 sols ago. The previous record holder Sojourner, rover of the 1997 Mars Pathfinder mission, had managed no more than 7 meters (23 feet) in a single sol.

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Mars Exploration Rovers Update: Spirit Breaks Driving Record -- Again, and Meets the Stone Council

Posted by A.J.S. Rayl on 2004/02/13 11:00 CST

The Mars Exploration Rovers are really starting to 'show their stuff' on the Red Planet. Despite a couple of technological hiccups earlier in the week, the twin robot field geologists are getting down and dirty in the Martian soil.

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Mars Exploration Rovers Update: Spirit Cruises to New Target, 'White Boat' Opportunity Uncovers Mystery Spheres

Posted by A.J.S. Rayl on 2004/02/10 11:00 CST

Both Mars rovers -- Spirit and Opportunity -- are roving on the Red Planet and doing exactly what they were programmed to do as robot field geologists, explore their surrounding areas.

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Mars Exploration Rovers Update: A Restored Spirit Studies Adirondack, 'Talks' to Mars Express

Posted by A.J.S. Rayl on 2004/02/08 11:00 CST

A fully restored Spirit got back to work late last week on Gusev Crater, using her rock abrasion tool for the first time to brush, then grind into Adirondack. And before her first day back was done, the rover returned more surprises to the science team in the flow of research data she sent home, and reestablished the "international, interplanetary communication network" by exchanging communiqus with the European Space Agency's orbiter, Mars Express.

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Mars Exploration Rovers Update: Spirit Suffers Minor Set-Back

Posted by A.J.S. Rayl on 2004/02/05 11:00 CST

It's been another week unlike any other week on Mars.

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