vendredi 2 août 2013

NASA's Curiosity Nearing First Anniversary on Mars












NASA - Mars Science Laboratory (MSL) patch.

Aug. 2, 2013

Curiosity Sol 343 Vista With 'Twin Cairns' on Route to Mount Sharp (click on the image for enlarge)

Image above: This scene combines seven images from the telephoto-lens camera on the right side of the Mast Camera (Mastcam) instrument on NASA's Mars rover Curiosity. Image Credit:
NASA/JPL-Caltech/Malin Space Science Systems.

NASA's Curiosity rover will mark one year on Mars next week and has already achieved its main science goal of revealing ancient Mars could have supported life. The mobile laboratory also is guiding designs for future planetary missions.

"Successes of our Curiosity -- that dramatic touchdown a year ago and the science findings since then -- advance us toward further exploration, including sending humans to an asteroid and Mars," said NASA Administrator Charles Bolden. "Wheel tracks now, will lead to boot prints later."

After inspiring millions of people worldwide with its successful landing in a crater on the Red Planet on Aug. 5, 2012, PDT (Aug. 6, 2012, EDT), Curiosity has provided more than 190 gigabits of data; returned more than 36,700 full images and 35,000 thumbnail images; fired more than 75,000 laser shots to investigate the composition of targets; collected and analyzed sample material from two rocks; and driven more than one mile (1.6 kilometers).

Westward View from Curiosity on Sol 347

Image above: NASA's Mars rover Curiosity used the Navigation Camera (Navcam) on its mast to record this westward look on the 347th Martian day, or sol, of the rover's work on Mars (July 28, 2013). Image Credit: NASA/JPL-Caltech.

Curiosity team members at NASA's Jet Propulsion Laboratory in Pasadena, Calif.,will share remembrances about the dramatic landing night and the overall mission in an event that will air on NASA Television and the agency’s website from 7:45 to 9 a.m. PDT (10:45 a.m. to noon EDT) on Tuesday, Aug. 6. Immediately following that program, from 9 a.m. to 10:30 a.m. (noon to 1:30 p.m.), NASA TV will carry a live public event from NASA Headquarters in Washington. That event will feature NASA officials and crew members aboard the International Space Station as they observe the rover anniversary and discuss how its activities and other robotic projects are helping prepare for a human mission to Mars and an asteroid. Social media followers may submit questions on Twitter and Google+ in advance and during the event using the hashtag #askNASA.

Curiosity, which is the size of a car, traveled 764 yards (699 meters) in the past four weeks since leaving a group of science targets where it worked for more than six months. The rover is making its way to the base of Mount Sharp, where it will investigate lower layers of a mountain that rises three miles from the floor of the crater.


NASA's Mars Science Laboratory spacecraft and its unprecedented sky crane landing system placed Curiosity on Mars near the base of Mount Sharp. The mountain has exposed geological layers, including ones identified by Mars orbiters as originating in a wet environment. The rover landed about one mile (1.6 kilometers) from the center of that carefully chosen, 12-mile-long (20-kilometer-long) target area.

Scientists decided first to investigate closer outcrops where the mission quickly found signs of vigorous ancient stream flow. These were the first streambed pebble deposits ever examined up close on Mars.

Evidence of a past environment well suited to support microbial life came within the first eight months of the 23-month primary mission from analysis of the first sample material ever collected by drilling into a rock on Mars.

"We now know Mars offered favorable conditions for microbial life billions of years ago," said the mission's project scientist, John Grotzinger of the California Institute of Technology in Pasadena. "It has been gratifying to succeed, but that has also whetted our appetites to learn more. We hope those enticing layers at Mount Sharp will preserve a broad diversity of other environmental conditions that could have affected habitability."

Curiosity Rover: One Year on Mars

The mission measured natural radiation levels on the trip to Mars and is monitoring radiation and weather on the surface of Mars, which will be helpful for designing future human missions to the planet. The Curiosity mission also found evidence Mars lost most of its original atmosphere through processes that occurred at the top of the atmosphere. NASA's next mission to Mars, Mars Atmosphere and Volatile Evolution (MAVEN), is being prepared for launch in November to study those processes in the upper atmosphere.

Full Curiosity Traverse Passes One-Mile Mark 


The total distance driven by NASA's Mars rover Curiosity passed the one-mile mark a few days before the first anniversary of the rover's landing on Mars.

This map traces where Curiosity drove between landing at "Bradbury Landing" on Aug. 5, 2012, PDT, (Aug. 6, 2012 (Universal Time and EDT) and the position reached during the mission's 351st Martian day, or sol, (Aug. 1, 2013).  The Sol 351 leg added 279 feet (85.1 meters) and brought the odometry since landing to about 1.05 miles (1,686 meters).

The mapped area is within Gale Crater and north of the mountain called Mount Sharp in the middle of the crater. After the first use of the drill, the rover's main science destination will be on the lower reaches of Mount Sharp. For broader-context images of the area, see http://photojournal.jpl.nasa.gov/catalog/PIA16064 and http://photojournal.jpl.nasa.gov/catalog/PIA16058.

The base image from the map is from the High Resolution Imaging Science Experiment Camera (HiRISE) in NASA's Mars Reconnaissance Orbiter. Image credit: NASA/JPL-Caltech/Univ. of Arizona.

JPL, a division of the California Institute of Technology, Pasadena, manages the Curiosity mission and built the rover for NASA's Science Mission Directorate in Washington.

To follow the conversation online about Curiosity's first year on Mars, use hashtag #1YearOnMars or follow @NASA and @MarsCuriosity on Twitter.

For NASA TV streaming video, schedule and downlink information, visit http://www.nasa.gov/ntv . The events airing on Tuesday also will be carried on Ustream at http://www.ustream.tv/nasajpl .

A movie made with Hazard-Avoidance Camera images from Curiosity's first year, titled "Twelve Months in Two Minutes," is available at http://mars.nasa.gov/msl/1yearin2mins .

For more information about the mission, visit http://www.nasa.gov/msl and http://mars.jpl.nasa.gov/msl .

Images (mentioned), Video (mentioned), Text, Credits: NASA / Dwayne Brown / JPL / Guy Webster.

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