02.08.2017 Mars Reconnaissance Orbiter Observes Changes
01.25.2017 'Wing' Dike of Hardened Lava in New Mexico
01.25.2017 Blade-Like Martian Walls Outline Polygons
01.06.2017 Earth and Its Moon, as Seen From Mars
11.15.2016 Schiaparelli Impact Site on Mars, Stereo
11.03.2016 Schiaparelli Impact Site on Mars, in Color
03.30.2016 Erisa Hines
03.30.2016 Buzz Aldrin
03.21.2016 For a Decade Orbiting Mars: One Recent View
03.09.2016 For a Decade Orbiting Mars: One Recent View
03.09.2016 Mars Reconnaissance Orbiter By the Numbers
03.01.2016 MRO sees Frosty Spring Slopes
02.12.2016 Women in Science
02.10.2016 Wind at Work
11.16.2015 Change Observed in Martian Sand Dune
10.05.2015 'The Martian' Story's Ares 4 Landing Site
10.05.2015 The Ares 3 Landing Site (Figure A)
09.30.2015 Avalanche Ho!
06.29.2015 Mars Exploration Zone Layout Considerations
06.17.2015 Active High-Latitude Dune Gullies
06.03.2015 Crisp Crater in Sirenum Fossae
05.20.2015 Sedimentary Rock Layers on a Crater Floor
05.20.2015 Honey, I Shrunk the Mesas
05.11.2015 Icy Wonderland
05.04.2015 Diverse Orbits Around Mars
03.27.2015 South Pole Spiders
03.27.2015 A Smile a Day....
03.25.2015 Pitted Landforms in Southern Hellas Planitia
03.12.2015 Curiosity Heading Away from 'Pahrump Hills'
02.18.2015 Lava Flow Near the Base of Olympus Mons
02.09.2015 Yardangs in Arsinoes Chaos, Mars
02.04.2015 Curiosity Rover at 'Pahrump Hills'
01.22.2015 Frost on Crater Slope
01.16.2015 Components of Beagle 2 Flight System on Mars
12.03.2014 An Enigmatic Feature in Athabasca Lava Flows
12.02.2014 NASA's Journey to Mars
11.07.2014 Mars Orbiter Sizes Up Passing Comet
Opportunity Amid Mars CratersThis map of the region around NASA's Mars Exploration Rover Opportunity shows the relative locations of several craters and the rover in May 2010, when Opportunity took images for a super-resolution view of the horizon to the rover's southeast (http://photojournal.jpl.nasa.gov/catalog/PIA13197).
The base map here is a mosaic of images from the Context Camera on NASA's Mars Reconnaissance Orbiter. The scale bar is 5 kilometers (3.1 miles).
Opportunity explored Endurance Crater, near the upper-left corner of this map, during the first year after the rover's January 2004 arrival on Mars for a mission originally scheduled to last for three months. Since the summer of 2008, when Opportunity finished two years of studying Victoria Crater, the rover's long-term destination has been the much larger Endeavour Crater. The route chosen for the journey veers south of the shortest path between the two craters in order to avoid hazardously large ripples of sand. By the spring of 2010, Opportunity had covered more than a third of the charted, 19-kilometer (12-mile) route from Victoria to Endeavour and reached an area with a gradual, southward slope offering a view of a portion of Endeavour's elevated rim.
On this map, the southeastward lines originating from the point labeled "Sol 2239" show the angle covered in the super-resolution view generated from a set of images that Opportunity's panoramic camera (Pancam) took during the 2,239th Martian day, or sol, of Opportunity's mission on Mars (May 12, 2010). The points labeled "Cape Tribulation," "Cape Byron," "Cape Dromedary" and "Point Hicks" on this map are also visible in that Sol 2239 Pancam view, as correlated by rover science team member Tim Parker, of NASA's Jet Propulsion Laboratory. The science team has assigned those and other informal names for features at Endeavour Crater using as a theme names of places visited by British Royal Navy Capt. James Cook in his 1769-1771 Pacific voyage in command of H.M.S. Endeavour. The Pancam view also shows some of the thick deposit of material ejected by the impact that excavated Iazu Crater, south of Endeavour. The observed increase in brightness of Iazu's ejecta relative to Endeavour's features is consistent with modeling by science team members Mike Wolff, of the Space Science Institute, and Ray Arvidson,of Washington University in St. Louis, applying optical characteristics Opportunity has measured in the Martian atmosphere.
After the rover team chose Endeavour as a long-term destination, the goal became even more alluring when observations with the Compact Reconnaissance Imaging Spectrometer for Mars, also on the Mars Reconnaissance Orbiter, found clay minerals exposed at Endeavour. James Wray, of Cornell University, and co-authors reported observations of those minerals in Geophysical Research Letters in 2009. Clay minerals, which form under wet and relatively neutral pH conditions, have been found extensively on Mars from orbit but have not been examined on the surface. Additional observations with that spectrometer are helping the rover team choose which part of Endeavour's rim to visit first with Opportunity.
Image Credit: NASA/JPL-Caltech/Malin Space Science Systems/WUSTL