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Mars Exploration Rovers Updates for 2011

Mars Exploration Rovers Update:Opportunity Climbs to Greeley Haven for Winter, and We Look Back at 2011

A.J.S. Rayl • December 31, 2011

As New Year's Eve moved from time zone to time zone across planet Earth, the Mars Exploration Rover (MER) team looked to 2012 and wrapping its eighth Earth year of exploring, while up on the Red Planet Opportunity settled into the "saddle" at Greeley Haven preparing for the onslaught of its fifth Martian winter.

Mars Exploration Rovers Special Update: Opportunity Finds Best Evidence Yet for Liquid Water in Gypsum at Homestake

A.J.S. Rayl • December 07, 2011

Mars Exploration Rover Opportunity has discovered gypsum and its "single most powerful piece of evidence for liquid water on Mars."

Mars Exploration Rovers Update:Opportunity Crunches Homestake, Scouts Locales for Winter

A.J.S. Rayl • November 30, 2011

Opportunity roved toward the end of its eighth year of exploration on the Red Planet and chalking up yet another "exciting" textbook discovery for the Mars mission.

Mars Exploration Rovers Update: Opportunity Heads for New Discovery as Winter Blows In at Cape York

A.J.S. Rayl • October 31, 2011

Opportunity roved on this month, driving alongside the rim of Endeavour Crater toward the northern end of Cape York in search of more science gold and a place to hunker down for winter.

Mars Exploration Rovers Update: Opportunity Digs In at Endeavour Crater, Team Remembers 9/11

A.J.S. Rayl • September 30, 2011

Since leaving the plains of Meridiani, pulling up to Endeavour Crater and checking out its first rock last month, Mars Exploration Rover Opportunity has wasted no time in getting the "new mission" underway.

Mars Exploration Rover Update: Opportunity Finds Martian Mystery at Endeavour Crater

A.J.S. Rayl • September 01, 2011

More than seven and a half years after landing, Opportunity arrived at its long-anticipated destination, the rim of Endeavour Crater, and in less than three weeks found something strange enough to launch a new Martian mystery.

Mars Exploration Rovers Update: Opportunity Arrives at Endeavour Crater, Mission Begins Anew

A.J.S. Rayl • August 31, 2011

The Mars Exploration Rover (MER) mission roves back into the exploration spotlight this month as Opportunity arrives at the rim of Endeavour Crater, a destination that wasn't even an impossible dream when the rover landed back in January 2004.

Mars Exploration Rovers Update: Opportunity Closes in on Endeavour as Team Bids Farewell to Spirit

A.J.S. Rayl • July 31, 2011

Opportunity seemed to sail with the wind behind her back toward the western rim of Endeavour Crater this month as the Mars Exploration Rover team shifted gears in preparation for a whole new adventure, taking time out only to bid a final farewell both privately and publicly to Spirit.

Mars Exploration Rovers Update: Opportunity Roves Back into Record Books, Spirit is Honored

A.J.S. Rayl • June 30, 2011

Opportunity 'burned up' the Meridiani Plains in June as it raced toward its much-anticipated next destination and the Mars Exploration Rover (MER) mission cruised into the 90th month of what was originally to have been a 90-day tour.

Mars Exploration Rovers Update: Spirit Mission Declared Over, Opportunity Roves Closer to Endeavour

A.J.S. Rayl • May 31, 2011

The Mars Exploration mission suffered the loss of Spirit and shifted to one-rover operations in May, but Opportunity carried on, blasting across the plains of Meridiani to within 2 miles (3.5 kilometers) of its next major destination and discovery.

Mars Exploration Rovers Update: NASA Ends Spirit Mission

A.J.S. Rayl • May 26, 2011

The intensified effort to recover Mars Exploration Rover (MER) Spirit came to an end early Wednesday morning Pacific time and NASA has now transitioned the mission to a single-rover operation focused on Spirit's still-active twin, Opportunity.

Mars Exploration Rovers Update: Spirit Recovery Attempt Continues, Opportunity Sprints to Endeavour

A.J.S. Rayl • April 30, 2011

As Opportunity drove her little robot heart out, breaking the 28-kilometer mark on her odometer, and driving the longest backward drive ever, April proved to be another month of exhilarating highs for the Mars Exploration Rover mission and one extended low with only silence from Spirit, despite intensified efforts by her Earth crew to establish contact.

Mars Exploration Rovers Update: Spirit's Silence Haunts, Opportunity Roves on to Endeavour

A.J.S. Rayl • March 31, 2011

The Mars Exploration Rover mission experienced a month of highs tempered by one haunting low as it neared completion of its 87th month of a three-month tour this month. While Opportunity wrapped up its work at the youngest, freshest crater the rovers have explored to date, Spirit remained silent as the point of maximum sunshine for the Martian year came and went, further dimming once high hopes that the rover would phone home and rove on as summer settled on the southern hemisphere of Mars.

Mars Exploration Rovers Update: Efforts to Recover Spirit Expand as Opportunity Wraps Up Work at Santa Maria

A.J.S. Rayl • February 28, 2011

The Mars Exploration Rover (MER) mission emerged from its third solar conjunction this month and, as March roars in, is embarking on its 86th month on the Red Planet. While Opportunity roved away from a surface target it had been studying at Santa Maria Crater and on to an intriguing blue boulder, JPL engineers on Earth stepped up their efforts to recover Spirit, which has been silent, ostensibly in hibernation mode, since late March, nearly one year ago.

Mars Exploration Rovers Update: Mission Celebrates 7 Years of Exploration

A.J.S. Rayl • January 31, 2011

Seven years ago this month, Spirit bounced down onto the surface of the Red Planet, rolled to a stop upright, and beeped home, ready to roll. Three weeks later, Opportunity not only bounced down safely and right into a small crater, but opened its "eyes" to see what the Mars Exploration Rovers had been sent to find signs that water had once flowed there.

MER
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