01.23.04 - On January 24, 2004, NASA's Mars rover Opportunity is scheduled to land on a Martian plain in search of evidence for water.
01.23.04 - The European Space Agency says its Mars Express orbiter has revealed the presence of water ice at the red planet's southern polar cap.
01.21.04 - Missions offer clues in hunt for new worlds
01.20.04 - The European Space Agency's Mars Express has sent back stunning high-resolution images of the planet's massive canyon, Valles Marineris.
01.16.04 - Landing on Mars was the first success. Now comes the fun of discovery with Spirit's on-board instrumentation.
01.13.04 - Master watchmaker Garo Anserlian is perfecting a timepiece for hundreds of Earthlings bound to Mars' irregular day.
01.10.04 - "Scientists have a crush on Mars, and it's hard not to look only for things we want to see," says Mars Exploration Rover scientist, John Grant.
01.09.04 - Traces of carbonate minerals showed up in Spirit's first survey of the site with its infrared sensing instrument, known as Mini-TES.
01.09.04 - Mars scientists are asking students from around the world to send in rocks to compare to the ones found on the red planet.
01.09.04 - While their peers sweat out their next quiz, high school students Courtney Dressing and Rafael Morozowski are sweating out the Mars mission.
01.06.04 - NASA Administrator Sean O'Keefe today announced plans to name the landing site of the Mars Spirit Rover the Columbia Memorial Station.
01.04.04 - Jan. 3, 2004, saw a celebration worthy of a second New Year's Eve as NASA's Mars Exploration Rover Spirit reached the surface of Mars and signaled that it was safe.
01.05.04 - Spirit's landing site may be a dried-up lake bed
12.03.03 - If getting to Mars is hard, landing there is even harder
12.19.03 - The red planet may be emerging from an icy recent past
12.11.03 - On the phone, tones can signal a connection. On paper, they can add shape and dimension. On Mars, they can do both.
11.13.03 - Images of numerous eroded gullies.
01.02.04 - NASA engineers went to the edge of a dry lakebed in California to test navigation software aboard a prototype Mars rover.
Engineers designing wheels for the Mars Exploration Rovers had a tall order to fill.
A sophisticated imaging instrument aboard each Mars Exploration Rover will bring Mars into focus for scientists on Earth.