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Topic: Opportunity (Mars rover)

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	Opportunity rover - Wikipedia, the free encyclopedia
		Opportunity was directed to proceed in a southerly direction to Erebus crater, a large, shallow, partially buried crater and a stopover on the way south towards "Victoria" crater, between October 2005 and March 2006.
		The rover was commanded to dig another trench on the vast plains of Meridiani Planum, on Sol 366, and observations continued until Sol 373 (February 10, 2005).
		Opportunity studied Erebus crater, a large, shallow, partially buried crater and a stopover on the way south towards Victoria crater, between October 2005 and March 2006.
	en.wikipedia.org /wiki/Opportunity_rover (2994 words)

	Mars Exploration Rover - Wikipedia, the free encyclopedia
		Opportunity landed in the Meridiani Planum on the opposite side of Mars from Spirit, on January 25, 2004 05:05 UTC.
		JPL succeeded on Thursday the 22nd in receiving a beep from the rover, indicating that it was in fault mode.
		At night the rovers are heated by eight radioisotope heater units (RHU) which each continuously generate 1 W of thermal energy from the decay of radioisotopes, along with electrical heaters that operate only when necessary.
	en.wikipedia.org /wiki/Mars_Exploration_Rover_Mission (5311 words)

	The Best of Mars Opportunity Lander Images
		The panoramic camera aboard NASA's Mars Exploration Rover Opportunity acquired this panorama of the "Payson" outcrop on the western edge of "Erebus" Crater during Opportunity's sol 744 (Feb. 26, 2006).
		The rover is currently traveling down this "road" and observing the approximately 25-meter (82-foot) length of the outcrop prior to departing Erebus crater.
		The rim of the crater is approximately 10 meters (32 feet) from the rover.
	www.solarviews.com /eng/opportunitygallery.htm (1051 words)

	Mission to Mars
		Opportunity took this image with its Pancam camera when the rover was about 130 meters (427 feet) from its heat shield, during the rover’s 322nd sol (Dec. 19, 2004).
		The protective device shielded the rover from intense frictional heat as it plunged through the martian atmosphere and was shed during the descent and landing sequence.
		Opportunity captured this 180-degree view of "Burns Cliff" after driving to the base of this southeastern portion of the inner wall of "Endurance Crater." The view combines frames taken by the rover’s Pancam camera between the rover’s 287th and 294th martian days (Nov. 13 to 20, 2004).
	www.athena.cornell.edu /rovers (561 words)

	Opportunity lander
		NASA's Mars Exploration Rover Opportunity is inspecting the heat shield that protected the rover from frictional high temperatures during descent through the martian atmosphere in January 2004.
		Opportunity is approaching the heat shield that protected the rover from frictional high temperatures during descent through the martian atmosphere in January 2004.
		Opportunity had reached the base of "Burns Cliff," a portion of the inner wall of "Endurance Crater." This view shows rock layers in the wall, with a portion of Opportunity's solar array visible at the bottom right.
	mysite.wanadoo-members.co.uk /blobrana/database/opportunity.htm (2459 words)

	Opportunity (MER-A)
		The rover has a top speed of 5 cm per second, but the average speed over time on flat hard ground would be 1 cm/sec or less due to the hazard avoidance protocols.
		The rover will be compactly stowed in a tetrahedron shaped landing platform and encased in an aeroshell consisting of a heat shield and a backshell for launch, cruise, and atmospheric entry.
		Opportunity was launched on a heavy Delta II 7925H on 8 July 2003 at 03:18:15 UT (July 7, 11:18:15 p.m.
	www.solarviews.com /eng/opportunity.htm (1019 words)

	BBC NEWS \| Science/Nature \| Opportunity rover lands on Mars
		Opportunity landed on a smooth, flat plain, in the highest altitude landing ever attempted by Nasa.
		The rover's airbags have made distinctive imprints in the Martian soil, suggesting it may be fine-grained and multi-layered.
		He added that Opportunity could have landed in a crater and that the bedrock could be the rim of that crater.
	news.bbc.co.uk /1/hi/sci/tech/3427045.stm (585 words)

	Spaceflight Now \| Destination Mars \| Mission Status Center
		Opportunity rover uses one of its wheels to dig another trench in the soil for science investigations.
		Opportunity awoke on sol 102 from its first "deep sleep." This set of activities was initiated to conserve the energy that is being used by the instrument arm's stuck-on heater switch.
		Opportunity sits about half a meter (1.6 feet) outside the edge of the crater with a positive pitch of 4.7 degrees, meaning the rover is slightly tilted with its head up.
	spaceflightnow.com /mars/mera/status.html (8909 words)

	CNN.com - Opportunity made 'interplanetary hole-in-one' - Jan. 26, 2004
		Mars rover Opportunity lands on the red planet.
		The Mars rover Opportunity is sending fresh data, including new photographs taken on the vehicle's parachute trip to the planet's surface, to mission control.
		Opportunity is a replica of Spirit but was programmed to land about 6,600 miles (10,620 kilometers) away on the opposite side of the planet, in an area known as the Meridiani Planum -- a smooth plain near Mars' equator.
	www.cnn.com /2004/TECH/space/01/25/mars.rovers (669 words)

	NASA - The World Goes to Mars :: Astrobiology Magazine :: Search for Life in the Universe
		The latest Mars rover, Opportunity, launched July 7th, and its sister rover, Spirit, which was launched on June 10th, have begun challenging trips to act as robotic geologists.
		Mars is approaching Earth in what will soon be the closest the planets have been in 73,000 years -- a confluence set officially for 5:46 AM, Wednesday, August 27, 2003.
		Orbital projections of where Mars Express and the Mars Exploration Rovers are right now can be continuously monitored over their half-year journeys.
	www.nasa.gov /vision/universe/solarsystem/world_mars.html (1980 words)

	Mars Exploration Rover Mission: Mars for Press
		Opportunity's dash to Mars began with liftoff at 11:18:15 p.m.
		Opportunity is scheduled to arrive at a site on Mars called Meridiani Planum on Jan. 25, 2004, Universal Time (evening of Jan. 24, Eastern and Pacific times), three weeks after Spirit lands in a giant crater about halfway around the planet.
		It built the rovers and manages the Mars Exploration Rover project for the NASA Office of Space Science, Washington, D.C. Information about the rovers and the scientific instruments they carry is available online from JPL at http://mars.jpl.nasa.gov/mer and from Cornell University, Ithaca, N.Y., at http://athena.cornell.edu.
	mars.jpl.nasa.gov /mer/newsroom/pressreleases/20030707a.html (396 words)

	New Scientist Breaking News - Mystery of Mars rover's 'carwash' rolls on
		NASA's Mars rover Opportunity seems to have stumbled into something akin to a carwash that has left its solar panels much cleaner than those of its twin rover, Spirit.
		The rovers landed on Mars in January 2004 with solar cells capable of providing more than 900 watt-hours of electricity per day.
		Rover team leader Jim Erickson at NASA's Jet Propulsion Laboratory in Pasadena, California, told New Scientist that a process still not understood has repeatedly removed dust from the solar panels.
	www.newscientist.com /article.ns?id=dn6824 (487 words)

	ScienceDaily: NASA's Mars Rover Opportunity Rover Begins Standing Up
		Opportunity has already validated predictions about the landing site made on the basis of images and measurements taken by spacecraft orbiting Mars, said JPL's Dr. Matt Golombek, a member of the rover science team and co-chair of a steering committee that evaluated potential landing sites for the rovers.
		NASA Rover Opportunity Rolls Onto Martian Ground (February 2, 2004) -- NASA's Mars Exploration Rover Opportunity drove down a reinforced fabric ramp at the front of its lander platform and onto the soil of Mars' Meridiani Planum this...
		Mars Exploration Rover -- NASA's Mars Exploration Rover (MER) Mission is an unmanned Mars exploration mission that sent two robotic rovers Spirit and Opportunity to explore the Martian surface and geology.
	www.sciencedaily.com /releases/2004/01/040129075204.htm (1873 words)

	Spaceflight Now \| Destination Mars \| Mars rover Opportunity enters stadium-sized crater
		Plans to drive the Mars rover Opportunity into Endurance Crater and new results from Spirit's search for past water at Gusev Crater are announced at this briefing from June 8.
		Opportunity is taking the risk of going into Endurance so its instrument-laden arm can examine a layered rock formation along the crater's inner wall that will give scientists more clues about the past environment on the Red Planet.
		The rock layers that Opportunity hopes to probe are lower in the ground than those studied at the much smaller Eagle Crater in which the rover landed four-and-a-half months ago.
	spaceflightnow.com /mars/mera/040609drive.html (1102 words)

	Mars rover Opportunity successfully escapes sand trap - Wikinews
		Opportunity has maneuvered out of the sand trap it was stuck in for five weeks.
		Traction was difficult in the ripple-shaped dune of windblown dust and sand that Opportunity drove into on April 26.
		Opportunity's next task is to examine the site to provide a better understanding of what makes that ripple different from the dozens of similar ones the rover easily crossed.
	en.wikinews.org /wiki/Mars_rover_Opportunity_successfully_escapes_sand_trap (663 words)

	Mars' watery past confirmed - Space.com - MSNBC.com
		The landing site of the Mars rover Opportunity was once drenched with water, providing an environment that could have supported life, NASA scientists announced at a press conference Tuesday.
		Opportunity and its identical robot twin, Spirit, are part of an $820 million mission designed to search for water on Mars.
		Opportunity will trek nearly a half-mile (740 meters) eastward to a crater called Endurance, which has a bright rim that might be a larger version of the outcrop just investigated.
	www.msnbc.msn.com /id/4202901 (1693 words)

	JPL News -- Mars Rover Opportunity Mission Status
		Before the thruster firings, Opportunity was headed for a landing about 384 kilometers (239 miles) west and south of the intended landing site, said JPL's Christopher Potts, deputy navigation team chief for the Mars Exploration Rover Project.
		Opportunity's schedule still includes two more possible trajectory correction maneuvers, on Jan. 22 and Jan. 24, but the maneuvers will only be commanded if needed.
		JPL, a division of the California Institute of Technology, manages the Mars Exploration Rover project for NASA's Office of Space Science, Washington, D.C. Additional information about the project is available from JPL at http://marsrovers.jpl.nasa.gov and from Cornell University, Ithaca, N.Y., at http://athena.cornell.edu.
	www.jpl.nasa.gov /releases/2004/23.cfm (315 words)

	SPACE.com -- Opportunity Mars Rover Stuck in Sand
		Rover operators are optimistic they can extricate the robot from its jam, having gotten dug in before.
		The Mars machinery had been cruising southward across the open parking lot-like landscape of Meridiani Planum, full of larger and larger ripples of soil.
		Prior to the rover run-a-muck, Mars rover scientists noted that Opportunity had made yet a new discovery.
	www.space.com /missionlaunches/050428_rover_update.html (671 words)

	Mars Global Surveyor MOC2-631 Release
		Note that the large crater on the right-center side of the image, and the crater in which the Opportunity lander sits, both have a wind streak, somewhat brighter than the general Meridiani plains, pointing toward the lower right (southeast).
		On 6 February 2004, the Opportunity rover had moved sufficient distance from the lander (to investigate the rock outcrop area known as "Snout") that it could almost be seen as a separate, dark object (middle images, above).
		The Jet Propulsion Laboratory's Mars Surveyor Operations Project operates the Mars Global Surveyor spacecraft with its industrial partner, Lockheed Martin Astronautics, from facilities in Pasadena, California and Denver, Colorado.
	www.msss.com /mars_images/moc/2004/02/09/index.html (830 words)

	CNN.com - Mars rover inspects possible meteorite - Jan 18, 2005
		Opportunity unleashes its robot arm to gather data about an odd rock sitting in Meridiani Planum.
		The rover traversed about 33 feet (10 meters), parking itself at the desired standoff distance of about 3.3 feet (one meter) to acquire remote sensing of the rock.
		Opportunity then acquired additional remote sensing, bumped forward closer to the rock, putting the odd object within the work volume of the tools mounted at the tip of the robot's mechanical arm.
	www.cnn.com /2005/TECH/space/01/18/mars.rover/index.html (641 words)

	Mars Rover (Site not responding. Last check: 2007-10-21)
		Rover scientists presented some of that news three weeks ago as evidence the rocks had at least soaked in mineral-rich water, possibly underground water, after they formed.
		James Garvin, lead scientist for Mars and lunar exploration at NASA Headquarters, Washington, said, "Many features on the surface of Mars that orbiting spacecraft have revealed to us in the past three decades look like signs of liquid water, but we have never before had this definitive class of evidence from the martian rocks themselves.
		We planned the Mars Exploration Rover Project to look for evidence like this, and it is succeeding better than we had any right to hope.
	www.qtm.net /~geibdan/a2004/mar/marssea.htm (471 words)

	Orbital Eyes Picked Mars Rover Opportunity's Landing Site
		Opportunity landed within the fl oval and found rocks that had once been drenched in water.
		Its presence on Mars told mission planners and scientists that Meridiani was an excellent place to send a rover to look for once-wet environments.
		While the role of TES in choosing a rover landing site is over, the instrument still has an ongoing connection to the Mars rovers.
	www.spacedaily.com /news/mars-odyssey-05f.html (1052 words)

	Rover Opportunity Strolls On Mars - CBS News
		The initial fl-and-white picture taken by Opportunity's rear hazard camera showed the rover's empty lander and a parallel set of tracks leading away from it, traced in the pebbly Martian dirt 128 million miles from Earth.
		Opportunity took 83 seconds to cover the 10 feet to the dark floor of the 72-foot-wide crater where it landed.
		The secrets of Mars are being revealed as multiple cameras show scientists the geography of the red planet.
	www.cbsnews.com /stories/2004/02/02/tech/main597326.shtml (1029 words)

	Mars Exploration Rover Mission: The Mission
		The Mars Exploration Rovers will act as robot geologists while they are on the surface of Mars.
		You can explore the various parts of the rover by clicking on the image to the left.
		In some senses, the rovers´ parts are similar to what any living creature would need to keep it "alive" and able to explore.
	marsrovers.jpl.nasa.gov /mission/spacecraft_surface_rover.html (108 words)

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