Jul 11, 2006 | MISSIONS
Possible Meteorites in the Martian Hills
(NASA - JPL) - NASA's Mars Exploration Rover Spirit has photographed two potential iron meteorites in Gusev Crater.

Mar 20, 2006 | MISSIONS
Rovers Prepare for Martian Winter
(NASA - JPL) - A new MER project manager is named as preparations for the Martian winter begin.

Feb 13, 2006 | MISSIONS
Spirit Reaches 'Home Plate'
(NASA) - Spirit has reached the geologic feature dubbed 'Home Plate' in Gusev Crater.

Jan 25, 2006 | MISSIONS
Mars Rovers Advance Understanding of the Red Planet
(NASA - JPL) - Spirit and Opportunity continue to find new variations of bedrock in areas they are exploring.

Dec 13, 2005 | MISSIONS
Opportunity Celebrates One Martian Year
(NASA - JPL) - Opportunity celebrated its 'One Martian Year' Anniversary on December 12.

Nov 30, 2005 | MISSIONS
Rover Helps Reveal Possible Secrets of Martian Life
(NASA - JPL) - Analysis of data from Opportunity reveals the challenges life may have faced in the harsh Martian environment.

Nov 22, 2005 | MISSIONS
Spirit Marks One Martian Year on Mars
(NASA - JPL) - NASA's Spirit rover has completed one Martian year (almost two Earth years) on Mars.

Oct 26, 2005 | MISSIONS
Ice Beneath Mars Is Asking, ' Can you hear me now?'
(NASA - JPL) - A small amount of radio noise received in a test of the UHF radio system on Mars Odyssey in 2003 may be a signal reflected off of subsurface ice on Mars.

Aug 26, 2005 | MISSIONS
Briefing Will Present News from a Martian Hilltop
(NASA) - Spirit has reached the summit of Husband Hill.

May 24, 2005 | MISSIONS
Rovers Continue Martian Missions
(NASA - JPL) - Mars rover Opportunity tries to escape from a sand trap, while its twin, Spirit, is busy finding new clues to a wet and violent early Martian history.

Apr 06, 2005 | MISSIONS
Durable Mars Rovers Sent into Third Overtime Period
(NASA) - NASA has approved up to 18 more months of operations for Spirit and Opportunity.

Mar 16, 2005 | MISSIONS
High Winds Make Spirit Full of Energy
(NASA - JPL) - Scientists are learning from NASA's Mars Exploration Rovers during the dust storm season on Mars.

Feb 21, 2005 | SCIENCE
NASA Statement on False Claim of Evidence of Life on Mars
(NASA) - News reports on February 16, 2005, that NASA scientists from Ames Research Center have found strong evidence that life may exist on Mars are incorrect.

Jan 25, 2005 | MISSIONS
Opportunity Tracks Seen from Orbit
(NASA - JPL) - NASA's Mars Exploration Rover Opportunity landed on the red planet a year ago.

Jan 20, 2005 | MISSIONS
Opportunity Rover Finds an Iron Meteorite on Mars
(NASA - JPL) - Opportunity has found an iron meteorite, the first meteorite of any type ever identified on another planet.

Jan 04, 2005 | MISSIONS
NASA Rovers' Adventures on Mars Continue
(NASA) - The Spirit rover begins its second year on Mars investigating puzzling rocks unlike any found earlier.

Dec 30, 2004 | MISSIONS
NASA Events Commemorate Rover Anniversary on Mars
(NASA) - Events are to be held at JPL on January 3rd to commemorate the one-year anniversary of the Mars Exploration Rovers mission.

Dec 21, 2004 | MISSIONS
Mars Rovers Earn Journal's 'Best Science' Title
(NASA - JPL) - NASA's Mars Exploration Rovers' discovery of evidence of past water on Mars is named scientific "Breakthrough of the Year".

Dec 13, 2004 | MISSIONS
Mars Rovers Spot Water-Clue Mineral, Frost, Clouds
(NASA - JPL) - Scientists have identified a water-signature mineral in bedrock examined by Spirit in the "Colombia Hills."

Dec 06, 2004 | MISSIONS
Reports Detail Rover Discoveries of Wet Martian History
(NASA - JPL) - Major research journal publishes findings from the Mars Exploration rovers.

Nov 11, 2004 | MISSIONS
Mars Exploration Rover Mission Status
(NASA - JPL) - Operators for the Opportunity rover are choosing a path for exiting Endurance Crater.

Nov 05, 2004 | MISSIONS
Spirit Adds Clues about History of Rocks in Martian Hills
(NASA - JPL) - Ten months after Spirit's dramatic landing, all of the instruments on both of the Mars Exploration Rovers are still working well.

Oct 08, 2004 | MISSIONS
Mars Rovers Probing Water History at Two Sites
(NASA - JPL) - Mars Exploration Rover team members report new findings about the history of water on Mars.

Sep 22, 2004 | MISSIONS
Rover Missions Renewed as Mars Emerges from Behind Sun
(NASA - JPL) - The Mars Exploration Rovers are now active again, and NASA has decided to extend their mission for another six months.

Sep 02, 2004 | MISSIONS
Mars Exploration Rover Mission Status
(NASA - JPL) - Opportunity has resumed using its rock abrasion tool.

Aug 26, 2004 | MISSIONS
Mars Odyssey Begins Overtime after Successful Mission
(NASA - JPL) - NASA's Mars Odyssey orbiter will now begin working overtime after completing its prime mission.

Aug 18, 2004 | MISSIONS
Bedrock in Mars' Gusev Crater Hints at Watery Past
(NASA - JPL) - Spirit has found evidence that water thoroughly altered some rocks in Mars' Gusev Crater.

Aug 11, 2004 | MISSIONS
Relays from Mars Show International Interplanetary Networking
(NASA - JPL) - Mars Express demonstrates its ability to serve as a communications link to Mars.

Jun 28, 2004 | MISSIONS
Mars Rover Surprises Continue; Spirit, Too, Finds Hematite
(NASA - JPL) - Both Spirit and Opportunity have found new surprises for researchers back on Earth.

Jun 15, 2004 | MISSIONS
Mars Rovers Going The Extra Mile
(NASA) - NASA's Mars rovers are delighting scientists with their extra credit assignments.

Jun 10, 2004 | MISSIONS
Mars Rovers Continue Unique Exploration of Mars
(NASA – JPL) - Opportunity prepares to move forward into Endurance crater.

Jun 04, 2004 | MISSIONS
Opportunity Gets Green Light To Enter Crater
(NASA) - NASA decides to send Opportunity into 'Endurance' crater.

Jun 02, 2004 | MISSIONS
Rovers Examining Hills and Crater in Bonus-Time Mission
(NASA – JPL) - NASA's Mars Exploration Rovers continue to discover clues about water on Mars, even after the end of their primary mission.

May 19, 2004 | MISSIONS
Mars Rover Inspects Stone Ejected From Crater
(NASA - JPL) - Opportunity has been examining rocks blasted out of the "Endurance" impact crater.

May 07, 2004 | MISSIONS
Mars Rover Arrival at Deeper Crater Provides a Tempting Eyeful
(NASA - JPL) - After a six-week trek, Opportunity has reached the stadium-sized 'Endurance Crater'.

Apr 29, 2004 | MISSIONS
Mars Rovers Finish Primary Mission and Roll Onward
(NASA - JPL) - The Mars Exploration Rovers have begun 'extra-credit' assignments after completing their originally planned mission.

Apr 27, 2004 | MISSIONS, TECHNOLOGIES
NASA Develops Software for Mars Mission
(NASA – ARC) - A new science planning support system is helping the Mars Exploration Rovers with their daily operations.

Apr 08, 2004 | MISSIONS
NASA Extends Mars Rovers' Mission
(NASA – HQ) - NASA approves up to five months of overtime assignments for the Mars Exploration Rovers.

Apr 05, 2004 | MISSIONS
Spirit Finds Multi-Layer Hints of Past Water at Mars' Gusev Site
(NASA – JPL) - Spirit finds rock that may have been repeatedly exposed to water in Gusev crater.

Mar 29, 2004 | MISSIONS
New Phase of Exploration Beginning for Mars Rovers
(NASA - JPL) - Spirit enters new phase of exploration just before its 3-month primary mission ends.

Mar 23, 2004 | MISSIONS
More Clues Emerge to Mars' Watery Past
(NASA) - Researchers think that Opportunity is now parked on the edge of what used to be a salty sea on Mars.

Mar 23, 2004 | MISSIONS
Leaving the Nest
(NASA - JPL) - Opportunity rolled out of its landing crater and gained a new view of Meridiani Planum.

Mar 20, 2004 | MISSIONS
Mineral in Mars 'Berries' Adds to Water Story
(NASA - JPL) - Small mineral spheres analyzed by Opportunity provide further understanding of past water at Meridiani Planum.

Mar 08, 2004 | MISSIONS
Volcanic Rock in Mars' Gusev Crater Hints at Past Water
(NASA - JPL) - NASA's Spirit rover has found its own potential evidence of past water on Mars.

Mar 03, 2004 | MISSIONS
Meridiani Planum: 'Drenched'
(NASA) - Scientists discuss Opportunity's evidence for past water on Mars.

Mar 02, 2004 | MISSIONS
Opportunity Rover Finds Strong Evidence Meridiani Planum Was Wet
(NASA - JPL) - Scientists have concluded that the area of Mars where NASA's Opportunity rover is exploring was soaking wet in the past.

Feb 23, 2004 | MISSIONS
Mars Rover Updates
(NASA - JPL) - Spirit continues to examine the trench it created, and Opportunity is busy using its microscope.

Feb 16, 2004 | MISSIONS
Check Before Digging
(NASA - JPL) - Opportunity prepares to dig and Spirit goes for a long drive.

Feb 10, 2004 | MISSIONS
Mars Rover Pictures Raise 'Blueberry Muffin' Questions
(NASA - JPL) - Spirit finishes drilling into volcanic basalt as Opportunity studies small spheres embedded in bedrock.

Feb 02, 2004 | MISSIONS
Mars Rover Spirit Restored to Health
(NASA - JPL) - Spirit is healthy again due to the recovery work of mission engineers.

Feb 02, 2004 | MISSIONS
Opportunity Roles onto Martian Ground
(NASA - JPL) - Opportunity has driven onto the soil of Mars.

Jan 30, 2004 | MISSIONS
Opportunity Rover Begins Standing Up
(NASA - JPL) - Opportunity has untucked its front wheels in preparation to move, and the recovering Spirit has sent another picture from Mars.

Jan 25, 2004 | MISSIONS
First Images of Opportunity Site Show Bizarre Landscape
(NASA - JPL) - NASA's Opportunity rover returned the first pictures of its landing site early today.

Jan 23, 2004 | MISSIONS
Further Communication Planned with Spirit
(NASA - JPL) - Early this morning, the flight team for the Mars Exploration Rovers received data from the Spirit rover at Gusev Crater.

Jan 21, 2004 | MISSIONS
NASA Mars Rover's First Soil Analysis Yields Surprises
(NASA - JPL) - The first use of the tools on the arm of NASA's Mars Exploration Rover Spirit reveals puzzles about the soil it examined.

Jan 20, 2004 | MISSIONS
Mars Rover Opportunity Mission Status
(NASA - JPL) - Opportunity prepares for its arrival at Mars.

Jan 15, 2004 | MISSIONS
Spirit Rolls onto Martian Soil
(NASA - JPL) - Spirit successfully drove off its lander platform and onto the soil of Mars early today.

Jan 14, 2004 | MISSIONS
Spirit Gets a Travel Itinerary
(NASA -JPL) - Spirit has rotated on its lander and is preparing to undertake its new mission itinerary.

Jan 12, 2004 | MISSIONS
Spirit Rover Nearly Ready to Roll
(NASA - JPL) - With its arm and all six wheels free, Spirit is nearly ready to begin exploring the Martian surface.

Jan 07, 2004 | MISSIONS
Most Detailed Picture of Mars Ever
(NASA -JPL) - Spirit has sent its first full-color picture of Mars.

Jan 05, 2004 | MISSIONS
Healthy Rover Shows Its New Neighborhood on Mars
(NASA - JPL) - Spirit has begun to examine its surroundings.

Jan 05, 2004 | MISSIONS
Spirit Lands on Mars and Sends Postcards
(NASA - JPL) - Spirit has returned the first images from its landing site inside the Gusev Crater on Mars.

Dec 30, 2003 | MISSIONS
Destination: Gusev Crater
(NASA) - On January 3, NASA's Mars rover Spirit is scheduled to land in a strange crater that might be an ancient martian lake bed.

Dec 02, 2003 | MISSIONS
Spotlight: Challenges of Getting to Mars
(NASA - JPL) - As the landing for the Mars Exploration Rovers approaches, researchers at NASA discuss the difficulties of getting to Mars.

Nov 26, 2003 | MISSIONS
NASA Briefing to Preview Twin Rovers' Arrival at Mars
(NASA - ARC) - The arrival date of the Mars Exploration Rovers 'Spirit' and 'Opportunity' is quickly approaching.

Jul 28, 2003 | EDUCATION
Students and Teachers to Explore Mars
(NASA - JPL) - High school students are given the opportunity to work on research projects during the Mars Exploration Rover missions.

Jul 09, 2003 | MISSIONS
Opportunity Launches
(NASA - KSC) - The Mars rover 'Opportunity' launched successfully on Monday, July 7.

Jul 03, 2003 | MISSIONS
Opportunity Launch Delayed
(NASA - KSC) - The launch of Opportunity has been rescheduled for July 6.

Jul 01, 2003 | MISSIONS
Opportunity Delayed
(NASA - KSC) - The launch of the second Mars Exploration Rover has been postponed to no earlier than Saturday, July 5.

Jun 30, 2003 | MISSIONS
Opportunity Launch Delayed
(NASA) - The second Mars Exploration Rover, Opportunity, is now targeted for launch on Wednesday, July 2.

Jun 23, 2003 | MISSIONS
Launch of Delta II with 'Opportunity' Targeted for June 28
(NASA - KSC) - Launch of NASA's second Mars Exploration Rover is officially set for Saturday, June 28.

Jun 22, 2003 | MISSIONS
MER-B Delayed
(NASA - KSC) - The launch of NASA's second Mars Exploration Rover has been delayed at least two days.

Jun 19, 2003 | MISSIONS
MER-B Status Report
(NASA - KSC) - With the successful launch of 'Spirit', mission specialists now turn to NASA's second Mars Exploration Rover, 'Opportunity'.

Jun 10, 2003 | MISSIONS
NASA's 'Spirit' Rises on Its Way to Mars
(NASA - JPL) - The first of NASA's Mars Exploration Rovers began its journey to the Red Planet today.

Jun 09, 2003 | MISSIONS
Next Rover Launch Attempt Set for Tuesday
(NASA) - Weather has again caused a launch delay for the first Mars Exploration Rover.

May 30, 2003 | MISSIONS
MER-A Mars Exploration Rover Targeted for Launch June 8
(NASA - KSC) - The first of NASA's Mars Exploration Rovers will now launch on June 8.

May 27, 2003 | MISSIONS
Mars Exploration Rover Spacecraft Undergo Biological Testing and Cleaning
(NASA - KSC) - NASA's Mars Exploration Rover Spacecraft are cleaned before launch in accordance with NASA's planetary protection policy.

May 22, 2003 | MISSIONS
Mars Exploration Rover Status Report
(NASA - KSC) - The final preparations are now being made for the launch of NASA's Mars Exploration Rovers.