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Mars Exploration Rovers Update: Opportunity Enters Perseverance Valley, Settles in for Solar Conjunction

A.J.S. Rayl • August 01, 2017

After struggling to get her left front wheel unstuck in June, Opportunity quickly adapted to a new driving strategy and unabashedly cruised into Perseverance Valley in July.

Congress gives NASA's planetary science division some love (and a Mars orbiter)

Jason Davis • July 19, 2017

The House of Representatives proposed $2.1 billion for NASA's planetary science budget, which would be an all-time high. Part of the increase would be used to start work on a new reconnaissance and communications orbiter.

Field Report from Mars: Sol 4782

Larry Crumpler • July 07, 2017

With the latest drive on sol 4782, Opportunity began the long drive down the floor of Perseverance Valley here on Endeavour Crater.

Mars Exploration Rovers Update: Opportunity Sprains ‘Ankle’ but Perseveres on Walkabout

A.J.S. Rayl • July 02, 2017

The autumn skies over Endeavour Crater remained hazy as dust from the summer storms continued to rain down, but Opportunity encountered some unexpected and serious June gloom when her right front steering wheel jammed during the walkabout atop Perseverance Valley.

Field Report from Mars: Sol 4766

Larry Crumpler • June 21, 2017

Opportunity is doing a geologic walkabout at the entrance to Perseverance Valley, an ancient and potentially water-carved feature.

Curiosity update, sols 1675-1725: Traverse to Vera Rubin Ridge

Emily Lakdawalla • June 13, 2017

Curiosity has had a busy eight weeks, driving south from the Bagnold Dunes toward Vera Rubin Ridge. The path has steepened and the rover is now rapidly climbing upward with every meter traveled. It's been a productive time for arm instruments, but the drill is still not working.

Mars Exploration Rovers Update: Opportunity Shoots the Moon on Arrival at Perseverance Valley

A.J.S. Rayl • June 06, 2017

In another dynamic demonstration of what can be achieved when a team works together, Opportunity cruised to the top of Perseverance Valley, shot the moon, and drove into her 160th month of surface operations in May.

Announcing a New Paper on NASA's Mars Exploration Program

Casey Dreier • June 06, 2017

NASA’s robotic Mars Exploration Program is on a troubling path of decline—and decisions must be made now in order to stop it. A new report by the Society explains why.

Field Report from Mars: Sol 4734

Larry Crumpler • May 18, 2017

Opportunity has arrived at the head of Perseverance Valley—a possible water-cut valley.

Geology on Mars: Using stratigraphic columns to tell the story of Gale Crater

Heidi Stauffer • May 15, 2017

Stratigraphic columns are a basic tool in geology, used on both Earth and Mars to tell the story of a location. But what are they really?

Field Report from Mars: Sol 4718

Larry Crumpler • May 03, 2017

Opportunity has made the final drive in the month-long process that began way up north inside Endeavour Crater earlier this Earth-year.

The Mars Exploration Rovers Update: Opportunity Closes in on Perseverance Valley

A.J.S. Rayl • May 03, 2017

Opportunity spent the month of April 2017 outside the western rim of Endeavour Crater, cruising toward Cape Byron and Perseverance Valley, the centerpiece of its tenth extended mission.

Curiosity update, sols 1600-1674: The second Bagnold Dunes campaign

Emily Lakdawalla • April 25, 2017

The four-stop dune science campaign offered the engineers some time to continue troubleshooting the drill without any pressure to use it for science. They scooped sand at a site called Ogunquit Beach but couldn't complete the planned sample activity because of new developments in the drill inquiry. The rover has now headed onward toward Vera Rubin Ridge.

Mars Exploration Rovers Update: Opportunity Dodges Dust Storms, Makes Tracks to Perseverance Valley

A.J.S. Rayl • April 04, 2017

After wrapping the final science investigations on the slopes of Cape Tribulation, Opportunity climbed up and over the rim of Endeavour Crater in March and embarked on the journey south toward its next science target: Perseverance Valley.

Unraveling a Martian enigma: The hidden rivers of Arabia Terra

Joel Davis • March 21, 2017

Arabia Terra has always been a bit of a martian enigma. Planetary scientist Joel Davis takes us on a tour of its valley networks and their significance in telling the story of water on Mars.

Field Report from Mars: Sol 4669

Larry Crumpler • March 13, 2017

Opportunity has begun driving down a long southward slope in Endeavour, heading toward Perseverance Valley.

Field Report from Mars: Sol 4662 - March 6, 2017

Larry Crumpler • March 11, 2017

For nearly two years, Opportunity's world has been tilted 10–25 degrees as it drove down to the lower slopes of the wall of Endeavour Crater. Toward the end of last week, Opportunity pulled itself up and over the lip of the crater.

MAVEN dodges Phobos, with (maybe) a little help from Curiosity

Emily Lakdawalla • March 06, 2017

This week MAVEN had to execute a short rocket burn in order to prevent a future collision with Phobos. Curiosity (and other rovers) may have played a role in those trajectory predictions.

Mars Exploration Rovers Update: Opportunity Reaches Top of Endeavour Rim, Wraps Cape Tribulation

A.J.S. Rayl • March 03, 2017

Driving the Mars Exploration Rovers (MER) mission further into its fourteenth year of surface operations, Opportunity continued hiking the slopes of Cape Tribulation in February and finally reached the crest of Endeavour Crater’s western rim.

Field Report from Mars: Sol 4639 - February 10, 2017

Larry Crumpler • February 10, 2017

Opportunity has successfully clawed its way to within a few meters of the crater rim after spending the last few months climbing and the last two years inside the crater.

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