Monitoring its "health" Just like the human brain, the rover computers register signs of health, like temperature and power levels, along with other features that keep the rover "alive. It does so by periodically checking temperatures, particularly in the rover body, and adjusting temperature control accordingly; and then recording power generation and power storage data throughout the Mars sol a Martian day to decide what new activities can be started or completed; and then finally scheduling and preparing for communication sessions with Earth or with local Mars orbiters.
Using its "computer brains" for exchanging information with the team Activities such as taking pictures, driving, and operating the instruments are performed under commands transmitted in a command sequence to the rover from the flight team back on Earth.
The rover has two "computer brains," one of which is normally asleep. Until this problem is fully resolved, we will continue to drive with the right front and left rear steering actuators disabled, using tank-like steering. Regarding the grounding anomaly, the engineering team regularly receives telemetry that tells them the voltage difference between "rover chassis" and "power bus return".
The rover chassis is the conductive structure of the rover akin to an automobile chassis. The power bus return is a collection of wires designed to carry current back to the rover power source battery or solar array.
Ideally, all rover current flows in a loop from the battery or solar array, returning by way of the power bus return wires. No current is supposed to flow in the rover chassis though, in reality, some leakage paths exist that allow current to return by way of the rover chassis. When these currents flow across the circuitry that separates the rover chassis and power bus return, they create a small voltage that is measured and reported in telemetry.
Until sol , the reported voltage was typically in the range of 0. On Sol , that voltage dropped to 0 volts. The 0 volt reading could indicate that there is a problem with the measurement circuit, or it could indicate that power bus return and rover chassis are now shorted making direct contact.
The rover can operate when the chassis and power bus return are shorted together or when they are separated from each other by electrical circuitry. In the shorted case, however, the rover is more susceptible to permanent damage if another short occurs somewhere else. Engineers are looking at when the short indication occurred for clues about its possible root cause. On , Spirit continued systematic atmospheric observations on this and all sols during this period using the miniature thermal emission spectrometer and panoramic camera.
The rock abrasion tool was employed to drill a shallow hole at "Koolik," a location on the rock Uchben. On sol , Spirit took microscopic images of the Koolik rock abrasion tool hole and placed the alpha particle X-ray spectrometer on Koolik for an overnight observation.
The alpha particle X-ray spectrometer works best when cold. On sol , Spirit performed tests to diagnose the root cause of the indication that steering brakes had failed to release, but the tests were inconclusive. Spirit then used the rock abrasion tool to brush "Chiikbes," another location on Uchben.
Spirit placed the alpha particle X-ray spectrometer on Chiikbes for an overnight observation. On sol , which ended on Oct. Spirit is healthy and currently investigating a layered rock called "Uchben. Spirit's solar panels are pointed to the northern Sun, but Spirit is still only getting about watt-hours of energy per day - enough to run a watt bulb for four hours. Opportunity has been getting more than watt-hours a day. The lower power supply for Spirit limits the rover's daily activities.
On sol , Spirit was parked at the location where a second occurrence of a problem with the rover's dynamic brake relay anomaly had halted a planned drive on sol Scientists took the opportunity to analyze disturbed soil in front of the rover. Spirit deployed its robotic arm, acquired images of the soil with the microscopic imager, and placed the alpha particle X-ray spectrometer on a new target, named "TakeABreak," for an overnight integration.
Sols , , and were built as a single three-sol plan to execute over Earth's weekend. On sol , Spirit acquired morning observations of sky and ground with its miniature thermal emission spectrometer, took a panoramic camera image to assess atmospheric quality, and completed the overnight alpha particle X-ray spectrometer measurement.
Spirit then successfully drove about 4 meters 13 feet backwards, putting the target "Uchben" into the workspace of the robotic arm. The drive included straightening the right front and left rear steering wheels, which are the two impacted by a problem with the relay that is used in turning the steering motors on and off.
The drive also successfully tested driving without use of the right front and left rear steering wheels to limit use of these motors while investigation of the malfunction continues. On sol , Spirit acquired measurements of the sky and ground in the morning with the miniature thermal emission spectrometer, took the usual midday nap, and then made remote-sensing observations in the afternoon, including some navigation camera images for use in planning of future driving.
On sol , after receiving its daily commands and acquiring a panoramic camera assessment of atmospheric quality and miniature thermal emission spectrometer measurements of the sky and ground, Spirit took a midday nap. In the afternoon, Spirit deployed the robotic arm and acquired 20 images of a target region called "Koolik" on Uchben with the microscopic imager.
Spirit then deployed the alpha particle X-ray spectrometer for an overnight integration. Spirit had a productive week investigating the rock "Tetl. Halfway into that drive, Spirit experienced a repeat problem in the steering motor control system that engineers first saw on sol Engineers repeated diagnostic tests for the problem on sol Those tests showed that the electronics relay in question is still functional, but appears to operate intermittently.
Spirit is otherwise healthy and is in a safe location. On sol , Spirit took images with the microscopic imager to create a mosaic of Tetl's layered rock face. On sol , Spirit captured more microscopic images of Tetl's layered face, then put the alpha particle X-ray spectrometer in place for an early morning observation. On sol , Spirit woke up at a.
The alpha particle X-ray spectrometer stayed on until the start of normal morning atmospheric science observations. Spirit also used its miniature thermal emission spectrometer to observe nearby rocks named "Zackuk" and "Palenque," which are possible future targets for in-depth observations. This was the final sol of Spirit's weekend plan and was purposely simple to enable the sequencing team to complete a 3-day plan on Friday. Spirit also took a few final microscopic images of Tetl, then stowed the robotic arm in preparation for the next sol's drive.
On sols and , Spirit attempted a drive to Uchben, another layered rock roughly 6 meters 20 feet northeast of Tetl. About 2. The feedback from that command indicated that the relay was still closed, so the motor control software declared an error. Due to the error, the rover ignored that steering command and all subsequent driving commands. The root cause of the failed relay command is under investigation. A diagnostic test last run on sol was repeated on sol , which ended on Oct.
That test showed that the steering motor's dynamic brake relay can still be opened and closed, but does occasionally 5 out of 10 times indicate that it is still closed after being commanded open. More diagnostics tests are needed before the source of the problem can be positively identified. Until then, engineers will continue to drive, but will steer the rover in a tank-like fashion, not using the steering actuator in question.
Future plans are to clear the drive error and attempt another drive to Uchben on sol Engineers are also planning to run more diagnostic tests starting on sol After working on Mars for three times as long as its primary three-month mission, Spirit is healthy and currently investigating the rock called "Tetl" in the "Columbia Hills.
On sol , Spirit successfully drove approximately 7 meters 23 feet and acquired images to build a digital elevation map of the hills. This put Spirit on the south side of a 2-meter-diameter 7-foot-diameter depression, with Tetl on the opposite side.
On sol , Spirit drove about 4 meters 13 feet around the edge of the depression to keep the rover's solar panels which are the rover's main power source tilted toward the Sun. Since the Sun moves low across the northern sky over Gusev Crater at this time of year, rover planners are attempting to keep the solar panels tilted toward the north. The drive included use of the five-wheel mode to minimize use of the sticky right front wheel, which inefficiently pulls too much power when it is activated.
Spirit also gathered additional about potential science targets, using the miniature thermal emission spectrometer and panoramic camera at the end of the rover's robotic arm. On sol , Spirit attempted to approach Tetl, but the drive ended early because the flight software detected that a steering brake control function did not work. Remote sensing data was still acquired. On sol , with an ongoing investigation of the steering anomaly, no further driving was planned.
Spirit completed alpha particle X-ray spectrometer readings on two different locations. On sol , Spirit successfully acquired remote sensing data and moved its robotic arm to put the alpha particle X-ray spectrometer at a third position during the day and a fourth position overnight.
The test indicated that there was no problem with the commanding process at that time. On sol , Spirit acquired remote sensing data, stowed its arm, and ran another steering diagnostic test. The cause of the steering brake issue has not been identified, but tests indicate that electronics related to the brake function and the overall steering capabilities of Spirit are healthy.
Engineers are proceeding with normal operations, including mobility. This put Tetl within reach of the robotic arm. After the drive, Spirit used its navigation camera to view the scene from the rover's new location. Future plans for Spirit include more intense investigations of Tetl and a meter foot drive to a target called "Machu Picchu. Spirit has successfully transitioned back to normal operations from conjunction operations, when Mars and Earth were on opposite sides of the Sun.
During conjunction sols through , engineers and scientists did not attempt normal operations due to the low probability of successful communications. From sols to , the rover team did transmit several "no operation" commands to test the communications link.
On Spirit's sol , Opportunity experienced an unexpected software reset, apparently triggered by a corrupted "no operation" command. As a result of that problem, engineers ceased all commanding on Spirit from sol until sol , at which time the likelihood of receiving corrupted commands was once again very low.
Spirit relayed data to the Mars Odyssey orbiter every afternoon throughout conjunction. Odyssey in turn attempted to relay that data back to Earth with limited success due to solar conjunction. As a result of the difficulties getting data off of the rover, the memory available for science data storage shrunk to roughly megabits by sol , but has recovered as of sol to roughly megabits.
Sol was the last sol of normal commanding for Spirit before conjunction. The rover team successfully re-transmitted four conjunction sequences that had not made it on-board during the sol uplink.
The team saw no transmission errors but commanded everything twice just in case , and the rovers performed the commanded remote sensing science. On sol , the rover team transitioned into conjunction operations and did the first "no-op" commanding tests during midday to see how effective the command link was as Mars moved further behind the Sun. The team received data from the Odyssey orbiter indicating that Spirit was healthy and proceeding normally with on-board conjunction sequences.
Sols through were the solar conjunction quiet period. No commanding was done. From the image thumbnails, the team could see that some dirt from the clod was indeed deposited on the outer area of the filter magnet. The rover team then repeated a microscopic imager sequence of that soil to see if winds had deposited anything there during conjunction.
The team then centered the alpha particle X-ray spectrometer on the same soil and started an integration later that night. Spirit also started a three-sol thermal investigation, using panoramic camera and miniature thermal emission spectrometer observations of soil targets several times during each sol. On sol , Spirit stowed its arm then drove backwards 1. Spirit also took navigation camera images of the road ahead in preparation for future drives.
That plan did not make it on board due to a problem during the communications uplink session. The deep space network antenna was pointed a few degrees below its lower safety limit when the transmitter was supposed to turn on, causing an interlock mechanism to turn off the transmitter.
By the time the antenna was reconfigured, not enough time remained to get the full sequence load transmitted. Fortunately, one sequence did make it to the rover and was successfully executed, freeing up roughly megabits of memory for future sols. Sol ended on Sept. Spirit is in safe place to continue daily science observations automatically throughout the solar conjunction period when engineers and scientists will be unable to send commands reliably to the rover.
An day period began a transition into solar conjunction on sol , when the Sun partially obscured the communications path between Earth and Mars, making communications sessions unreliable. Engineers were able to successfully command Spirit on sol , and they had partial commanding success on sol Engineers will attempt to command Spirit on sol also.
From sol through sol , sequences already safely on board will perform a set of science activities on a daily basis. On sols through , the last three days of conjunction, the rover team will attempt normal operations again. On sol , engineers sent Spirit a set of coordinated commands to use the miniature thermal emission spectrometer and panoramic camera for observations of possible future science targets.
A new set of 12 conjunction master sequences was also transmitted successfully to Spirit. This new set of conjunction master sequences will use less energy than previous sequences. However, a wrinkle has developed in this plan. That soil touch was done to leave a soil impression that would be studied after conjunction for changes.
It's the team's first inadvertent sample acquisition! The dirt does not pose any threat to the rover from an engineering perspective. Since Spirit arrived at its solar-conjunction resting place, its science activities have focused on gathering data from the surrounding area for use in planning post-conjunction sols.
Navigation camera images in Spirit's drive direction have been used to develop traverse maps. These maps show areas that allow Spirit to maintain a north-facing tilt; these areas will provide significantly more solar energy and will therefore be favored as the team plans the traverse to Spirit's next science target.
During conjunction, Spirit will transmit five-minute "beep" tones, and engineers will send "No-operation" commands to the rover to characterize effects that the conjunction has on radio transmissions between Mars and Earth. Spirit found a comfortable location on a rock outcrop and spent cold autumn days performing observations of a rock called "Ebenezer" with the rover's science instruments. Spirit finished observations of Ebenezer and moved over to the next location, "Tikal," about nine meters 30 feet away.
Spirit will spend solar conjunction at Tikal. Solar conjunction is when Earth and Mars are on opposite sides of the Sun. Due the interference with the Sun, communications between Earth and the spacecraft at Mars will be minimal during solar conjunction, which occurs during Spirit's sols through On sol , Spirit completed an overnight reading with its alpha particle X-ray spectrometer on a target dubbed "Cratchit 2," where the rover had earlier used its rock abraision tool to cut a hole exposing the rock's interior.
Spirit took images of the same target with the microscopic imager. Then Spirit used the alpha particle X-ray spectrometer for thirty minutes. After completing the alpha particle X-ray spectrometer reading, the arm was stowed so that on sol the rock abrasion tool brushings could be imaged using the panoramic camera without the arm blocking any part of the image.
Spirit spent sols to brushing eight adjoining patches on Ebenezer to create a large enough scrubbed area for analyzing with the miniature thermal emission spectrometer, then drove up to the rover's designated vacation spot for solar conjunction. Spirit bumped backwards on sol , and took some navigation camera images of the brushed area of Ebenezer to support miniature thermal emission spectrometer observations on the next sol.
A navigation camera panorama was taken in the expected drive direction, toward Tikal. In the morning of sol , the panoramic camera imaged the brushed area of Ebenezer. A little after noon, the miniature thermal emission spectrometer took spectral readings of both the brushed area and a hole that rock abrasion tool hole had cut into Ebenezer on sol Gusev time, Spirit took an afternoon drive to Tikal, about nine meters 30 feet away.
During sols through , Spirit completed science observations at the "Clovis" rock outcrop. So Spirit packed up and slowly moved on. Winter is approaching and temperatures continue to drop.
Power is always a major concern as available energy fluctuates between and watt-hours per sol, but Spirit continues the quest, climbing ever higher into the Columbia Hills. Spirit has climbed more than 13 meters 43 feet in elevation from Hank's Hollow, at the base of Columbia Hills, but currently is at an elevation of 37 meters feet above its landing site on the plains of Gusev Crater!
On sol , operators became concerned that Spirit's batteries might be entering a very low state of charge, so Spirit shut down to charge the batteries. Sol was truly a mega-activity sol. Spirit awoke at a.
Spirit hasn't done that in a long time. The rover extended its arm and used its rock abrasion tool to brush seven circular patches on Clovis. After the first five brushings, the arm was moved out of the way and an image was taken of the circles. These five brushing circles resemble the Olympic rings. After completing the brushing, Spirit performed a minute reading with its alpha particle X-ray spectrometer, imaged the seven rings using its microscopic imager, stowed its arm and drove one meter three feet backward, farther off of the Clovis outcrop.
Spirit's day was far from over. The rover performed post-drive observations with its navigation camera, observations with its miniature thermal emission spectrometer concurrent with the afternoon Odyssey pass, and panoramic camera observations before shutting down. Another gold medal performance for Spirit! From sols , Spirit stopped at a rock dubbed "Ebenezer" for several sols of intense science.
Ebenezer is roughly 8 meters 26 feet from Clovis. While at Ebenezer, Spirit was facing south of east, with its nose pitched up 21 degrees. This orientation was very favorable from a power perspective since the sun tracks to the north. Spirit's daily solar energy input increased about 10 percent as a result. Spirit also had a great view of the Gusev plain from this location.
On Sol , Spirit used the rock abrasion tool to brush a target on Ebenezer and took an overnight alpha particle X-ray spectrometer reading on the brushed area. On Sol , which ended on Aug. An alpha particle X-ray spectrometer reading in the resulting hole began the morning of Sol Over the next few sols, the plan is for Spirit to drive to its next target, which is yet to be determined.
Spirit continued work over the past nine sols at a rock called "Clovis. Clovis is the most altered rock encountered by Spirit to date. It is part of a rock outcrop located on the "West Spur" of the "Columbia Hills," roughly 55 meters feet higher than Spirit's landing site about 3 kilometers 2 miles away.
Spirit also successfully performed a couple of communications tests with the European Space Agency's Mars Express orbiter last week. The tests demonstrated the two spacecraft's ability to work together to transmit data collected by the rovers to Earth via the Mars Express communications relay. More than 85 percent of the data from the rovers has been transmitted to Earth via the Odyssey orbiter. On sol , Spirit experienced an unexpected reboot of the flight software.
This incident was not a threat to the spacecraft. It is a known bug in the system that the rover team is working around. On sol , Spirit drove up steep terrain to reach the exact spot on Clovis for work with the science instruments at the end of the robotic arm.
Between sols and , Spirit completed an alpha particle X-ray spectrometer reading of a spot on Clovis called "Plano," which had been brushed off using the rock abrasion tool. Spirit then placed the rock abrasion tool on Plano again and drilled for 2. Spirit also continued a campaign to capture a color degree panoramic camera image from this location.
Spirit captured additional segments of the panorama on sols and On sol , Spirit took microscopic images of the rock abrasion tool hole, and then placed the alpha particle X-ray spectrometer in the hole for an early morning observation. This is a longer than normal integration time, with a goal of resolving in more detail the makeup of this highly altered rock. Over the last few sols, Spirit struggled mightily to reach a rock outcrop called "Clovis," overcoming the challenge of rough, steep terrain and subsequent backsliding.
The site is near the crest of the "West Spur" of "Columbia Hills. On sol , Spirit attempted to reach Clovis by climbing out of the sandy hollow in which it was sitting. Unfortunately, on a slope of more than 20 degrees, slippage caused Spirit to dance around the outcrop. The drive was finally cut off by a time-of-day limit on rover mobility. The plan for sol was designed to accommodate up to a 50 percent slip and still reach the outcrop target.
However, due to challenging terrain near Clovis, Spirit again did not end up exactly where scientists and engineers wanted it to go. For part of its traverse, Spirit slipped about percent, actually losing ground in its attempt to move uphill.
Late in the sol, internal software experienced a timing problem in which two instrument-related commands were given at nearly the same time, temporarily precluding further operation of the miniature thermal emission spectrometer and camera mast on Spirit. Sol became a recovery sol.
On the bright side, since the problem did not affect communications, a communications experiment with the European Space Agency's Mars Express orbiter was successfully conducted in the early morning hours of sol By sol , which ended on Aug. Operators commanded Spirit to drive 7. Spirit is examining Clovis. This outcrop will likely be the subject of Spirit's most intensive investigation to date.
Mars has seasons like the Earth does, but the seasons are twice as long due to Mars' larger orbit around the Sun. Right now, Mars is approaching northern summer.
That also means that it's approaching southern martian winter at the same time. So Spirit is headed for winter, being 14 degrees south of the equator. Because martian winter is setting in, solar array energy continues to be a concern for Spirit. If Spirit parks with a northerly tilt, the rover will see between and watt-hours of energy, but if Spirit stops on flat ground or with a southerly tilt, solar energy is as low as watt-hours. So engineers make a concerted effort to find the north-facing islands along Spirit's path.
On Sol , Spirit was commanded to drive 98 feet 30 meters across terrain that was pretty steep. Spirit accomplished 8. Engineers had set the maximum tilt angle limit at 25 degrees. Spirit did complete pre-drive science observations and post-drive imaging. On sol , Spirit repeated the drive plan from sol with the maximum tilt angle set to 32 degrees. This time the rover completed the drive as planned, traveling Spirit then performed post-drive imaging. On sol , scientists' hope was to find rock outcropping in this location, but none were found.
So the decision was made to continue the drive up the hill to find a better rock outcrop. Spirit performed another six-wheel, foot meter drive. This drive was completed successfully; however, at the end of the drive, Spirit drove into a small hollow. As a result, Spirit was pitched 15 degrees toward the southwest, and ended up with a southerly tilt.
Planning for sol was very exciting due to the late downlink of information from sol Very late in the planning cycle, available power on sol was reduced from watt-hours to watt-hours.
Pre-drive observations were cut back to 17 minutes, during which the motors were heated for driving. Spirit drove only 0. Because the drive was so short, the power situation is not as bad as it could have been. Total odometry after sol , which ended on July 30, is 2. Total elevation above the plains of Gusev Crater is estimated to be 30 feet 9 meters.
Over the next few sols, scientists and engineers hope to make it to "Clovis" rock outcrop and to recharge the batteries. On sol , Spirit completed a 6-hour early morning alpha particle X-ray spectrometer reading on Mastodon.
After a midday nap to conserve energy, Spirit took pictures with the microscopic imager to create a mosaic of the rock abrasion tool hole. Sol , ending on July 26, was a busy day for Spirit.
Due to the nature of the terrain, the drive was done in 6-wheel mode to minimize errors rather than the current standard 5-wheel mode to conserve the aging right front wheel. Engineers carefully targeted Spirit's drive to end in a location with favorable tilt to the north to point the solar panels toward the Sun, giving Spirit as much power as possible as the Sun hangs low in the sky during martian winter.
On sol , Spirit took a large microscopic imager mosaic, consisting of 34 images at multiple positions, of a target called "Sabre" on an outcrop rock called "Wooly Patch. On sol , the rock abrasion tool dug a surprisingly deep hole in only two hours of grinding.
The rock appears to be softer than what scientists and engineers have seen previously in Gusev Crater. The alpha particle X-ray spectrometer was placed in the rock abrasion tool hole at Sabre. However, due to uncertainties in how long the arm and grinding operations take, the sequence was terminated a few minutes too early and a planned overnight alpha particle X-ray spectrometer integration did not take place.
With the efforts of many people, including engineers, the second Mars rover was sent to Mars and I drew this piece of artwork to showcase how the Mars Perseverance rover has not only gone away This is my Perseverance rover model to celebrate the proud moment of safe landing. This is my art work and quote to show the excitement of perseverance landing on Mars. I made a watercolor painting of Mars with its two moons Deimos and Phobos.
SpaceX's crewed Starship is at Martian atmospheric entry, attempting to land on a stable crater! This is my idea for this project. This is a digital artwork depicting the Perseverence mid-decent above Mars, with the sun and This is a paper model of the heat shield and the rover the cruise stage! This drawing shows the landing of perseverance.
It is my dream to design a rover and send it to I love space, there is a lots misters in the space, I design Mars on my mind challenge. I am going to be submitting some funny Mars jokes in celebrations for the Mars landing!
This is an illustration of Perseverance, the rover landing on Mars. It is when it's being We are exploring Mars for a possibility of intelligent life out there.
The red planet is I made a 3D tinkercad design of a Mars base and its components. I included a landing site, a I made a model of the next rover to send to Mars! Her name is Vibrancy. Vibrancy has the traits The painting is about an astronaut on Mars watching earth from a distance.
Being on the Today, I made some red slime, since Mars is on my mind Then, I sprinkled glitter and The Perseverance Rover is created to look for signs of new life. Named after the I made a red velvet cake and decorated it to look like the surface of Mars.
In the center of the The mars on my mind project is to show how important science can be and that you can create Rover Perseverance and helicopter Ingenuity has started to work on Mars fields. The helicopter I love space Its always been We've come so far. From to , our journey to the red planet has been truly astounding to Also in the letter Astrobiology is a rover that is like the Perseverance rover in some ways.
It can produce oxygen I will learn about hard Perseverance has arrived! In these graphics, we see a simplified silhouette of Mars's newest This is the landing of Perseverance on Mars and the launch of the helicopter.
I am celebrating I made the Mars rover by taking a steel nut and bolt kit and using a 3-D model of the My Mars was created with orange and red paint. I designed a cool new mars rover for the future. It will have new wheels with a chain mail like A short story about Perseverance's first day on Mars, and what Perseverance hopes to accomplish Mars is hot; Life is very slim, and Hundred times bigger than a steaming pot.
Perseverance a big A girl is in space and happens to fly by Mars. Marveled by its beauty she decides to take Mars in my perspective is amazing if you look In this drawing there is Ingenuity flying and Perseverance on the ground there mission is to This is a letter to the Nasa Scientist of the perseverance rover that says what good and smart In my submission, you will see an inspirational statement created by me with the name of the Perseverance may spit out samples, but it also has Ingenuity.
Just like a human. Perseverance takes the cake on it's journey to Mars! This cake was inspired by where I created the vials There is a rover, space craft, and two rovers on Mars with two rocket ships. Tech Demo: The Mars Helicopter is a technology demonstration, hitching a ride on the I drew two pictures celebrating the recent successful touchdown of the Perseverance rover on The wheels touch the ground.
Dust settles around it as the horizon shows stone for miles. Contact us Thank you for your interest in contacting Future Engineers. But even the lively spirits of George Michael and Andrew Ridgeley failed to stir the rover, and NASA has been playing a different song each day ever since, in the hopes that Opportunity will soon say something back. The website then compiled a Spotify playlist of the songs that have been played, or will be, to Opportunity.
The dust storm that engulfed Mars began in May and was so powerful that it blocked out the sun—not ideal for a solar-powered rover. In a press release , NASA said that the last time engineers heard anything from the rover was June 10, when the storm covered more than Observers are hoping that the dust has settled enough for Opportunity to exit hibernation and power its batteries back up , which is what should happen once it senses that there is enough solar power.
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