The Mars Exploration Rovers Update Archives

A comprehensive accounting of the Spirit and Opportunity rovers

From 2004 to 2019, journalist A.J.S. Rayl followed the adventures of the Mars Exploration Rovers Spirit and Opportunity for The Planetary Society. Her exclusive coverage is archived here. For an overview of the mission itself, visit our Mars Exploration Rovers mission page.

Mars Exploration Rovers Update: Spirit Lands on Red Planet, Returns First Images

Spirit -- NASA's first Mars Exploration Rover -- survived the 'six minutes of terror' entering and descending through the atmosphere to land safely -- and upright -- in Gusev Crater on the Red Planet. Just two hours after the confirmation signal of the landing, the first engineering data and images began streaming into the MER Mission Control at the Jet Propulsion Laboratory (JPL), where Spirit and her twin, Opportunity were built.

NASA Begins Countdown to Spirit's Arrival on Mars

Spirit – the first of NASA's two robot geologists en route to the red Planet -- is “in “excellent” health, NASA and JPL scientists reported at a news briefing at JPL this afternoon, and the countdown to touch down on the Red Planet has begun.

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Special Feature

In Memoriam

A tribute to members of the Mars Explorations Rovers team who passed away during the mission.