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

A.J.S. Rayl • May 07, 2004

"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).

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

A.J.S. Rayl • April 30, 2004

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.

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

A.J.S. Rayl • April 17, 2004

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).

Updates from Past Recipients of the Shoemaker NEO Grants

Bruce Betts • April 16, 2004

Update as of March 24, 2004 2003 was a good year with 50,779 asteroid astrometric observations submitted, including known NEOs and the discovery of a new Aten-class object, 2003 UY12. Based upon the volume of astrometric observations submitted, observatory code 683 was the world's eighth most productive asteroid astrometry station.

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

A.J.S. Rayl • April 09, 2004

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.

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

A.J.S. Rayl • April 03, 2004

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.

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

A.J.S. Rayl • March 27, 2004

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.

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

A.J.S. Rayl • March 23, 2004

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.

Mars Exploration Rovers Update: Spirit Too Finds Traces of Water

Amir Alexander • March 05, 2004

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.

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

A.J.S. Rayl • March 03, 2004

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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