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Mars Exploration Rovers update: Spirit and Opportunity are both still talking to Earth

Emily Lakdawalla • July 23, 2007

Both Spirit and Opportunity are still suffering under incredibly dark skies, but, amazingly, they are both "power-positive," meaning that they are managing to produce enough power from the limited amount of sunlight to keep the batteries fully charged.

Windows Onto the Abyss: Cave Skylights on Mars

Emily Lakdawalla • May 23, 2007

Today's set of image releases from the Mars Reconnaissance Orbiter HiRISE team included this one, of a fairly bland-looking lava plain to the northeast of Arsia Mons. Bland, that is, except for a black spot in the center.

Millions of soundings yield clues to Mars' weather

Bruce Betts • April 03, 2007

Two months after the start of Mars Reconnaissance Orbiter's primary science phase, the Mars Climate Sounder instrument has already acquired more than four million soundings, building toward a vast data set on the three-dimensional structure of Mars' atmosphere over the full Martian year of the orbiter's nominal mission.

Autumn comes to Mars' north pole

Emily Lakdawalla • February 18, 2007

It's easy to forget that Mars is another such world with cloudy weather and seasonally varying climate. This lovely image release from the CRISM instrument on Mars Reconnaissance Orbiter brings that point home.

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