Articles

Emily Lakdawalla

How scientists are working with CRISM, an aging but still exceptional spectrometer on Mars Reconnaissance Orbiter, to find the rocks where Opportunity's work will tell the story of ancient water on Mars.

A.J.S. Rayl

At the western rim of Endeavour Crater, Opportunity spent the month of May exploring a new clayground along Murray Ridge and the Mars Exploration Rovers (MER) mission trundled into the 125th month of what was originally to be a short, 3-month tour.

Bill Dunford

Pioneer trails extend all the way to Mars.

Emily Lakdawalla

The last couple of weeks have seen Curiosity return to the business of making steady headway toward Murray Buttes and, beyond them, Mount Sharp. Eight of the last 14 sols have seen drives ranging in length from 30 to 104 meters, racking up a total of more than half a kilometer. They are now occasionally working a shortened planning timeline that allows them to squeeze more drive sols into Curiosity's schedule.

Emily Lakdawalla

Mars Express and Mars Reconnaissance Orbiter are keeping their eyes in the sky on Curiosity. There's a nice newly public color image of all of Gale Crater from HiRISE, and two new HiRISE images within the Curiosity landing site.

Emily Lakdawalla

Curiosity and Opportunity self-portraits show one rover accumulating dust, the other losing it. Check out these cool before-and-after comparisons.

Emily Lakdawalla

Finally, a new drill site! For the first time in nearly a year, Curiosity has put drill bit to rock and acquired a new sample of Martian material for her analytical instruments to chew on. Scientific data collection at Windjana is now complete; Curiosity drove away last night, on sol 630.

Matthew Chojnacki

HiRISE team member Matt Chojnacki tells us about the discovery and formation of these mysterious features forming on Mars in the present day.

Bill Dunford

One day, five worlds.

Larry Crumpler

Opportunity is closing in on the next important outcrop area on the rim of Endeavour crater.

Casey Dreier

The House revealed details of its draft NASA budget today, including an increase of $170 million to Planetary Science above the White House's request for 2015, putting it within spitting distance of our goal of $1.5 billion.

Emily Lakdawalla

A Mars year's worth of Sun images from Opportunity demonstrates Mars' orbital motions as reflected in the changing apparent position of the Sun: the analemma.

A.J.S. Rayl

The Mars Exploration Rovers mission cruised toward the Martian spring, Opportunity is powered-up and cleaner than it has been since its first winter on Mars.

Emily Lakdawalla

Curiosity took a new self-portrait on sol 613. This post contains a tip for would-be Curiosity image processors on how to make their Curiosity mosaics better: removing the smearing effect of bright objects in MAHLI photos.

Emily Lakdawalla

After completing the initial reconnaissance of the Kimberley outcrop two weeks ago, Curiosity is, at last, moving toward a drill site. The science team selected the location last week: a spot near the base of Mount Remarkable, into what they have been calling the

Casey Dreier

The Opportunity rover and the Lunar Reconnaissance Orbiter are both zeroed out in NASA's 2015 budget. Learn why these missions face the axe and why the White House is forcing NASA to choose between existing missions and starting new ones.

Bill Dunford

A conversation with Dr. Sarah Milkovich, HiRISE Investigation Scientist.

Emily Lakdawalla

Imagine yourself on a windswept landscape of rocks and red dust with mountains all around you. The temperature -- never warm on this planet -- suddenly plunges, as the small Sun sets behind the western range of mountains.

Emily Lakdawalla

Curiosity has been busy performing a survey of the Kimberley, walking the length of the outcrop and taking enormous quantities of photos. The team is now ready to go in for a closer look, and maybe even to drill.

J. Brian Balta

Mawrth Vallis was axed as a landing site for Curiosity, but will we get a chance to explore it with ESA's ExoMars rover?