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A Day in the Solar System: 28 October 2015

Bill Dunford • November 09, 2015

On October 28th, the Cassini spacecraft flew through the geyser plume of Saturn's moon Enceladus. But Cassini was not the only spacecraft operating in the solar system that day.

ESA mission updates

Emily Lakdawalla • November 04, 2015

There have been several important pieces of news about European missions in the last month: Rosetta's fate has been determined; ExoMars Trace Gas Orbiter's launch is slightly delayed; and they have selected a landing site for the ExoMars rover.

Mars Exploration Rovers Update: Opportunity Hits Winter Slopes at Marathon Valley

A.J.S. Rayl • November 04, 2015

Opportunity hit the slopes of her seventh winter haven on the south side of Marathon Valley in October as the mission entered the 130th month of what was initially slated to be a 90-day tour.

A Roundup of Dust Devil Research

Ralph Lorenz • November 02, 2015

Planetary scientist Ralph Lorenz briefs us on the current state of our knowledge on dust devils on Earth and Mars.

Mastcam-Z: The Future of Stereo Imaging on Mars

Bruce Betts • October 29, 2015

An introduction to the Mastcam-Z stereo imager on the Mars 2020 rover, and brief reporting and reflections on team meetings, science instruments, and the exciting future of The Planetary Society covering the entire lifetime of this instrument, from design to Mars images.

At Mars Workshop, Science and Human Spaceflight Find Common Ground

Jason Davis • October 29, 2015

An update from NASA’s First Human Landing Sites/Exploration Zones on Mars Workshop at the Lunar and Planetary Institute in Houston, Texas.

Where Should Humans Land on Mars? Workshop to Discuss Possibilities

Jason Davis • October 27, 2015

This week in Houston, Texas, scientists are gathering to discuss where humans should first land and explore on the surface of Mars.

Why Return to the Columbia Hills?

Alex Longo • October 23, 2015

Where should NASA’s next Mars rover, the Mars 2020 sample caching mission, land? One site under consideration is Spirit's old stomping ground, the Columbia Hills.

Mars Orbiter Mission update: A year at Mars

Emily Lakdawalla • October 06, 2015

A couple of weeks ago, there was a flurry of rumor that ISRO was ready to announce some results from its Mars Orbiter Mission's methane sensor. The Indian space agency held a press event for the one-year-in-orbit anniversary of Mars Orbiter Mission and released a book containing mission photos, but did not unveil any new scientific results.

Mars Exploration Rovers Update: Opportunity Rocks on Ancient Water During Walkabout

A.J.S. Rayl • October 02, 2015

Opportunity continued her walkabout around Marathon Valley in September and sent home more evidence of significant water alteration and, perhaps, an ancient environment inviting enough for the emergence of life.

Mars Week Continues: We've Released Our 'Humans Orbiting Mars' Workshop Report

Casey Dreier • September 29, 2015

Learn all about a sustainable, affordable path to get humans to the Red Planet—a path that goes through Mars orbit and Phobos.

NASA's Mars Announcement: Present-day transient flows of briny water on steep slopes

Emily Lakdawalla • September 28, 2015

NASA held a press briefing today to publicize a cool incremental result in the story of present-day liquid water on Mars. How big a deal is this story? Was all the pre-announcement hype justified? Is this just NASA discovering water on Mars for the zillionth time? What does this mean for things many space fans care about: life on Mars or future human exploration?

A Free, Online Course Exploring the Science of Phobos and Deimos

Casey Dreier • September 19, 2015

Impress your friends and wow your colleagues by learning all about Mars's moons.

Curiosity update, sols 1073-1107: Driving toward dunes, distracted by haloes

Emily Lakdawalla • September 18, 2015

Since I last checked in with Curiosity, the rover has been steadily driving southward, heading directly toward the Bagnold dune field. They are looking for a place to drill into the Stimson sandstone unit, but have been distracted by intriguing pale haloes around frock fractures. Despite a rough road, the wheels are not showing significant increase in damage.

A Workhorse at Mars

Tanya Harrison • September 11, 2015

The Mars Reconnaissance Orbiter (MRO) Context Camera (CTX) is almost a silent star at Mars. The latest MRO data release brought the total number of available CTX images to over 70,000, covering well over 90% of the Red Planet at a stunning resolution of 6 meters per pixel.

Pretty Picture: A Sweeping View of the Martian South Pole

Jason Davis • September 10, 2015

The European Space Agency's Mars Express spacecraft captured a sweeping view of Mars' south pole, along with a region extending northward to Hellas Basin.

IceBreaker: The Search for Life on Mars

Van Kane • September 08, 2015

The IceBreaker mission, proposed to NASA's Discovery program for low-cost missions, would seek out life on the northern plains of Mars.

Mars Exploration Rovers Update: Opportunity Digs Marathon Valley Walkabout

A.J.S. Rayl • September 03, 2015

Opportunity drove farther into Marathon Valley in August, dug into what appears to be a water-altered rock, and took a lot of picture postcards in what is turning out to be a distinctively different site from any that the mission has found since the robot field geologist landed in 2004.

Field Report from Mars: Sol 4119 - August 26, 2015

Larry Crumpler • August 26, 2015

Opportunity is moving down into a large valley that cuts through the rim of Endeavour crater, into some interesting scenery.

Roving Mars—In Utah

Bill Dunford • August 19, 2015

Students gather in the desert to answer the University Rover Challenge, pushing the limits of the tech that will drive future Mars exploration.

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