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<html>
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<title>Mars in Color, from "Spirit"</title>
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<h1>Mars in Color, from "Spirit"</font></h1>
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<a href="2P134976048ESF2700P2111LM1.jpeg"><img src="small_2P134976048ESF2700P2111LM1.jpg" border="0"></a>
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<font size=1>4/11/2004 <br></font>
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<font size=1>4/11/2004 <br></font>
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</div>
<font size=1>4/11/2004 <br></font>
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<font size=1>4/11/2004 <br></font>
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<a href="2P134972258EFF2700P2760LM1.jpeg"><img src="small_2P134972258EFF2700P2760LM1.jpg" border="0"></a>
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</div>
<font size=1>4/11/2004 <br></font>
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<a href="2P134971489EFF2700P2760LM1.jpeg"><img src="small_2P134971489EFF2700P2760LM1.jpg" border="0"></a>
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</div>
<font size=1>4/11/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P134970703EFF2700P2760LM1.jpeg"><img src="small_2P134970703EFF2700P2760LM1.jpg" border="0"></a>
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</div>
<font size=1>4/11/2004 <br></font>
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<a href="2P134970336EFF2700P2760LM1.jpeg"><img src="small_2P134970336EFF2700P2760LM1.jpg" border="0"></a>
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</div>
<font size=1>4/11/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P134617805EFF2700P2538LM1.jpeg"><img src="small_2P134617805EFF2700P2538LM1.jpg" border="0"></a>
<div align=left>
</div>
<font size=1>4/7/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P134617487EFF2700P2538LM1.jpeg"><img src="small_2P134617487EFF2700P2538LM1.jpg" border="0"></a>
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</div>
<font size=1>4/7/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P134617142EFF2700P2539LM1.jpeg"><img src="small_2P134617142EFF2700P2539LM1.jpg" border="0"></a>
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</div>
<font size=1>4/7/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P134525347EDN2700P2113LM1.jpeg"><img src="small_2P134525347EDN2700P2113LM1.jpg" border="0"></a>
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</div>
<font size=1>4/6/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P134453987EFF2700P2375LM1.jpeg"><img src="small_2P134453987EFF2700P2375LM1.jpg" border="0"></a>
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</div>
<font size=1>4/5/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P134453241EFF2700P2375LM1.jpeg"><img src="small_2P134453241EFF2700P2375LM1.jpg" border="0"></a>
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</div>
<font size=1>4/5/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P134452853EFF2700P2375LM1.jpeg"><img src="small_2P134452853EFF2700P2375LM1.jpg" border="0"></a>
<div align=left>
</div>
<font size=1>4/5/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P134452070EFF2700P2375LM1.jpeg"><img src="small_2P134452070EFF2700P2375LM1.jpg" border="0"></a>
<div align=left>
</div>
<font size=1>4/5/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P134451314EFF2700P2375LM1.jpeg"><img src="small_2P134451314EFF2700P2375LM1.jpg" border="0"></a>
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</div>
<font size=1>4/5/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P134451008EFF2700P2375LM1.jpeg"><img src="small_2P134451008EFF2700P2375LM1.jpg" border="0"></a>
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<font size=2>no violet/indigo<br></font>
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<font size=1>4/5/2004 <br></font>
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<a href="2P134447151EFF2606P2537LM1.jpeg"><img src="small_2P134447151EFF2606P2537LM1.jpg" border="0"></a>
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</div>
<font size=1>4/5/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P134351518EFF2500P2536LM1.jpeg"><img src="small_2P134351518EFF2500P2536LM1.jpg" border="0"></a>
<div align=left>
</div>
<font size=1>4/4/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P134351145ESF2500P2535LM1.jpeg"><img src="small_2P134351145ESF2500P2535LM1.jpg" border="0"></a>
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</div>
<font size=1>4/4/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P134260970EFF2400P2534LM1.jpeg"><img src="small_2P134260970EFF2400P2534LM1.jpg" border="0"></a>
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</div>
<font size=1>4/3/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P134260756EFF2400P2533LM1.jpeg"><img src="small_2P134260756EFF2400P2533LM1.jpg" border="0"></a>
<div align=left>
</div>
<font size=1>4/3/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P134258771EFF2400P2532LM1.jpeg"><img src="small_2P134258771EFF2400P2532LM1.jpg" border="0"></a>
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</div>
<font size=1>4/3/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P134081436EFF2238P2530LM1.jpeg"><img src="small_2P134081436EFF2238P2530LM1.jpg" border="0"></a>
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</div>
<font size=1>4/1/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P134001194EFF2238P2599LM1.jpeg"><img src="small_2P134001194EFF2238P2599LM1.jpg" border="0"></a>
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</div>
<font size=1>3/31/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P133907656ESF2232P2146LM1.jpeg"><img src="small_2P133907656ESF2232P2146LM1.jpg" border="0"></a>
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</div>
<font size=1>3/30/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P133828474ESF2232P2592LM1.jpeg"><img src="small_2P133828474ESF2232P2592LM1.jpg" border="0"></a>
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<font size=1>3/29/2004 <br></font>
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<a href="2P133827428ESF2232P2591LM1.jpeg"><img src="small_2P133827428ESF2232P2591LM1.jpg" border="0"></a>
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</div>
<font size=1>3/29/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P133638720EFF2232P2590LM1.jpeg"><img src="small_2P133638720EFF2232P2590LM1.jpg" border="0"></a>
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</div>
<font size=1>3/27/2004 <br></font>
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<a href="2P133549917EFF2232P2588LM1.jpeg"><img src="small_2P133549917EFF2232P2588LM1.jpg" border="0"></a>
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<font size=2>This image was taken by NASA's Mars Exploration Rover Spirit on sol 79 after completing a two-location brushing on the rock dubbed "Mazatzal." A coating of fine, dust-like material was successfully removed from targets named "Illinois" (right) and "New York" (left), revealing clean rock underneath. The center of the two brushed spots are approximately 10 centimeters (3.9 inches) apart and were aggressively analyzed by the instruments on the robotic arm on sol 80. On sol 81, the rover drilled into the New York target to expose the original rock underneath.<br></font>
</div>
<font size=1>3/26/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P133474930EFF2232P2587LM1.jpeg"><img src="small_2P133474930EFF2232P2587LM1.jpg" border="0"></a>
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</div>
<font size=1>3/25/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P133467574ESF2232P2584LM1.jpeg"><img src="small_2P133467574ESF2232P2584LM1.jpg" border="0"></a>
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</div>
<font size=1>3/25/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P133462315ESF2232P2142LM1.jpeg"><img src="small_2P133462315ESF2232P2142LM1.jpg" border="0"></a>
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</div>
<font size=1>3/25/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P133384829EFF2232P2582LM1.jpeg"><img src="small_2P133384829EFF2232P2582LM1.jpg" border="0"></a>
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<font size=2>This hazard-avoidance camera image was taken by NASA's Mars Exploration Rover Spirit on sol 79 after completing a two-location brushing on the rock dubbed "Mazatzal." A coating of fine, dust-like material was successfully removed from targets named "Illinois" (right) and "New York" (left), revealing clean rock underneath. In this image, Spirit's panoramic camera mast assembly, or camera head, can be seen shadowing Mazatzal's surface. The center of the two brushed spots are approximately 10 centimeters (3.9 inches) apart and were aggressively analyzed by the instruments on the robotic arm on sol 80. On sol 81, the rover drilled into the New York target to expose the original rock underneath.<br><br>Note: The raw images are under the pan camera with color filters. ???<br></font>
</div>
<font size=1>3/24/2004 <br></font>
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<font size=2>NASA's Mars Exploration Rover Spirit took this panoramic camera image of the rock target named "Mazatzal" on sol 77 (March 22, 2004). It is a close-up look at the rock face and the targets that will be brushed and ground by the rock abrasion tool in upcoming sols. <br><br>Mazatzal, like most rocks on Earth and Mars, has layers of material near its surface that provide clues about the history of the rock. Scientists believe that the top layer of Mazatzal is actually a coating of dust and possibly even salts. Under this light coating may be a more solid portion of the rock that has been chemically altered by weathering. Past this layer is the unaltered rock, which may give scientists the best information about how Mazatzal was formed. <br><br>Because each layer reveals information about the formation and subsequent history of Mazatzal, it is important that scientists get a look at each of them. For this reason, they have developed a multi-part strategy to use the rock abrasion tool to systematically peel back Mazatzal's layers and analyze what's underneath with the rover's microscopic imager, and its Moessbauer and alpha particle X-ray spectrometers. <br><br>The strategy began on sol 77 when scientists used the microscopic imager to get a closer look at targets on Mazatzal named "New York," "Illinois" and "Arizona." These rock areas were targeted because they posed the best opportunity for successfully using the rock abrasion tool; Arizona also allowed for a close-up look at a range of tones. On sol 78, Spirit's rock abrasion tool will do a light brushing on the Illinois target to preserve some of the surface layers. Then, a brushing of the New York target should remove the top coating of any dust and salts and perhaps reveal the chemically altered rock underneath. Finally, on sol 79, the rock abrasion tool will be commanded to grind into the New York target, which will give scientists the best chance of observing Mazatzal's interior. <br><br>The Mazatzal targets were named after the home states of some of the rock abrasion tool and science team members.<br></font>
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<font size=1>3/23/2004 <br></font>
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<a href="2P133215948EFF2232P2571LM1.jpeg"><img src="small_2P133215948EFF2232P2571LM1.jpg" border="0"></a>
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<font size=2>used violet for blue<br></font>
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<font size=1>3/22/2004 <br></font>
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<a href="2P133215630EFF2232P2571LM1.jpeg"><img src="small_2P133215630EFF2232P2571LM1.jpg" border="0"></a>
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</div>
<font size=1>3/22/2004 <br></font>
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<a href="2P133203527ESF2224P2572LM1.jpeg"><img src="small_2P133203527ESF2224P2572LM1.jpg" border="0"></a>
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</div>
<font size=1>3/22/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P133201511EFF2224P2573LM1.jpeg"><img src="small_2P133201511EFF2224P2573LM1.jpg" border="0"></a>
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</div>
<font size=1>3/22/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P133199879EFF2224P2569LM1.jpeg"><img src="small_2P133199879EFF2224P2569LM1.jpg" border="0"></a>
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</div>
<font size=1>3/22/2004 <br></font>
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<a href="2P133107208ESF2200P2567LM1.jpeg"><img src="small_2P133107208ESF2200P2567LM1.jpg" border="0"></a>
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<font size=2>This image of the rock called "Mazatzal" was taken by the Mars Exploration Rover Spirit. It reveals some interesting features on this future rock abrasion tool target, including variants in tone, a sugary surface texture and scalloped areas where parts of the rock seem to have been worn away. Mazatzal's uniqueness is made even more obvious when it is compared to the more typical, basaltic rock in the lower right of the image.<br></font>
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<font size=1>3/21/2004 <br></font>
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<a href="2P132839962ESF2000P2557LM1.jpeg"><img src="small_2P132839962ESF2000P2557LM1.jpg" border="0"></a>
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</div>
<font size=1>3/17/2004 <br></font>
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<td width="25%" align="center" valign="top">
<a href="2P132838732ESF2000P2559LM1.jpeg"><img src="small_2P132838732ESF2000P2559LM1.jpg" border="0"></a>
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</div>
<font size=1>3/17/2004 <br></font>
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<a href="2P132756971EFF1957P2352LM1.jpeg"><img src="small_2P132756971EFF1957P2352LM1.jpg" border="0"></a>
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<font size=2>The Mars Exploration Rover Spirit acquired this navigation camera image on the 72nd martian day, or sol, of its mission (March 15, 2004), after digging its wheel into the drift dubbed "Serpent." Creating the commands that would generate this "scar" was not an easy task for rover controllers. Essentially, they had to choreograph an intricate dance for Spirit, maneuvering it up the side of the dune, shimmying its left front wheel a number of times to create the scuff, and then reversing to attain proper positioning for miniature thermal emission spectrometer observations. Before the task was finished, Spirit moved forward to put the scuff within proper reach of the rover's arm. <br><br>This scar allows the rover's instruments to see below the drift surface, to determine the composition of the materials. Initial results indicate that the drift material is similar to the basaltic sands that have been seen throughout Spirit's journey to the large crater dubbed "Bonneville." The material does not seem to be the same as that inside the crater. <br><br>Scientists are now looking to answer two questions: Why is the dark sand in the crater not the same as the dark sand in the drift? And why are there two different dark soil-type deposits in such a small place?<br></font>
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<font size=1>3/17/2004 <br></font>
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<a href="2P132756409EFF1957P2352LM1.jpeg"><img src="small_2P132756409EFF1957P2352LM1.jpg" border="0"></a>
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</div>
<font size=1>3/17/2004 <br></font>
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<a href="2P132664488EDN1800P2113LM1.jpeg"><img src="small_2P132664488EDN1800P2113LM1.jpg" border="0"></a>
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</div>
<font size=1>3/15/2004 <br></font>
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<a href="2P132581777ESF1800P2543LM1.jpeg"><img src="small_2P132581777ESF1800P2543LM1.jpg" border="0"></a>
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</div>
<font size=1>3/15/2004 <br></font>
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<font size=1>3/14/2004 <br></font>
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<font size=1>3/14/2004 <br></font>
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<font size=1>3/12/2004 <br></font>
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<font size=1>3/11/2004 <br></font>
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<font size=1>3/9/2004 <br></font>
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<font size=1>3/9/2004 <br></font>
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<font size=1>2/28/2004 <br></font>
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<font size=1>2/27/2004 <br></font>
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<font size=2>"Humphrey" at Gusev Crater, Mars, the Mars Exploration Rover Spirit's landing site. Spirit examined the lumpy rock with its suite of scientific instruments both before and after it drilled a hole into the rock surface on the 60th martian day, or sol, of its mission. "Humphrey" was one of several stops on the rover's way to the large crater dubbed "Bonneville."<br></font>
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<font size=1>2/27/2004 <br></font>
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<font size=1>2/27/2004 <br></font>
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<font size=2>The large, shadowed rock in the foreground is nicknamed "Sandia" for a mountain range in New Mexico. An imposing rock, "Sandia" is about 33 centimeters high and about 1.7 meters long.<br>When lightened, this image reveals much about the pictured rocks, which the science team believes are ejected material, or ejecta, from the nearby crater called "Bonneville." Scientists believe "Sandia" is a basaltic rock that landed on its side after being ejected from the crater. The vertical lines on the side of the rock facing the camera are known by geologists as "flow banding" and typically run horizontally, indicating that "Sandia" is on its side. What look like small holes on the two visible sides of the rock are called vesicles; they were probably once gas bubbles within the lava.<br>Many smaller rocks can be seen in the background of the image. Some rocks are completely exposed, while others are only peeking out of the surface. Scientists believe that two processes might be at work here: accretion, which occurs when winds deposit material that slowly buries many of the rocks; and deflation, which occurs when surface material is removed by wind, exposing more and more of the rocks.<br><br></font>
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<font size=1>2/26/2004 <br></font>
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<font size=1>2/18/2004 <br></font>
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<font size=1>2/18/2004 <br></font>
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<font size=1>2/17/2004 <br></font>
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<font size=1>2/14/2004 <br></font>
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<font size=1>2/14/2004 <br></font>
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<font size=1>2/14/2004 <br></font>
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<font size=1>2/14/2004 <br></font>
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<font size=1>2/13/2004 <br></font>
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<font size=1>2/13/2004 <br></font>
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<font size=1>2/13/2004 <br></font>
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<font size=1>2/13/2004 <br></font>
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<font size=1>2/13/2004 <br></font>
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<font size=1>2/13/2004 <br></font>
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<font size=1>2/13/2004 <br></font>
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<font size=1>2/13/2004 <br></font>
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<font size=2>Magnetic dust collector<br></font>
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<font size=1>2/12/2004 <br></font>
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<font size=1>2/10/2004 <br></font>
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<font size=2>White Boat is the first rock target that Spirit drove to after finishing a series of investigations on the rock Adirondack. White Boat stood out to scientists due to its light color and more tabular shape compared to the dark, rounded rocks that surround it.<br></font>
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<font size=1>2/9/2004 <br></font>
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<font size=2>This is the Spirit's arm that does brushing, grinding, and drilling.<br></font>
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<font size=1>2/6/2004 <br></font>
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<font size=2>This is the Spirit's arm that does brushing, grinding, and drilling.<br></font>
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<font size=1>2/2/2004 <br></font>
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