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Perseverance (rover)

From Wikipedia, the free encyclopedia

Perseverance
Part of Mars 2020
Perseverance-Selfie-at-Rochette-Horizontal-V2.gif
Self-portrait by Perseverance in September 2021 at Rochette, a rock and the site of the first core samples of the Mars 2020 mission.
TypeMars rover
OwnerNASA
ManufacturerJet Propulsion Laboratory
Specifications
Dimensions2.9 m × 2.7 m × 2.2 m
(9 ft 6 in × 8 ft 10 in × 7 ft 3 in)
Dry mass1,025 kilograms (2,260 lb)
Communication
PowerMMRTG; 110 watt
RocketAtlas V 541
Instruments
History
Launched
Deployed
LocationJezero crater, Mars
Travelled10.27 km (6.38 mi) as of 3 May 2022 [1]
NASA Mars rovers

Perseverance, nicknamed Percy,[2] is a car-sized Mars rover designed to explore the Jezero crater on Mars as part of NASA's Mars 2020 mission. It was manufactured by the Jet Propulsion Laboratory and launched on 30 July 2020, at 11:50 UTC.[3] Confirmation that the rover successfully landed on Mars was received on 18 February 2021, at 20:55 UTC.[4][5] As of 24 June 2022, Perseverance has been active on Mars for 478 sols (491 Earth days, or 1 year, 4 months and 6 days) since its landing. Following the rover's arrival, NASA named the landing site Octavia E. Butler Landing.[6][7]

Perseverance has a similar design to its predecessor rover, Curiosity, from which it was moderately upgraded. It carries seven primary payload instruments, nineteen cameras, and two microphones.[8]

The rover also carried the mini-helicopter Ingenuity to Mars, an experimental aircraft and technology testbed that made the first powered flight on another planet on 19 April 2021.[9] As of April 21, 2022, it has made 26 successful flights.[10][11] Ingenuity's 25th successful flight, which occurred on April 8, 2022, saw the helicopter set new records for highest speed and distance traveled during a single flight.[12]

The rover's goals include identifying ancient Martian environments capable of supporting life, seeking out evidence of former microbial life existing in those environments, collecting rock and soil samples to store on the Martian surface, and testing oxygen production from the Martian atmosphere to prepare for future crewed missions.[13]

Mission

Science objectives

The Perseverance rover has four main science objectives[14] that support the Mars Exploration Program's science goals:[13]

  • Looking for habitability: identify past environments that were capable of supporting microbial life.
  • Seeking biosignatures: seek signs of possible past microbial life in those habitable environments, particularly in specific rock types known to preserve signs over time.
  • Caching samples: collect core rock and regolith ("soil") samples and store them on the Martian surface.
  • Preparing for humans: test oxygen production from the Martian atmosphere.

In the first science campaign Perseverance performs an arching drive southward from its landing site to the Séítah unit to perform a "toe dip" into the unit to collect remote-sensing measurements of geologic targets. After that it will return to the Crater Floor Fractured Rough to collect the first core sample there. Passing by the Octavia B. Butler landing site concludes the first science campaign.

The second campaign will include several months of travel towards the "Three Forks" where Perseverance can access geologic locations at the base of the ancient delta of Neretva river, as well as ascend the delta by driving up a valley wall to the northwest.[15]

History

First image acquired moments after Perseverance's landing, from front left Hazard Avoidance Camera, 18 February 2021
First image acquired moments after Perseverance's landing, from front left Hazard Avoidance Camera, 18 February 2021

Despite the high-profile success of the Curiosity rover landing in August 2012, NASA's Mars Exploration Program was in a state of uncertainty in the early 2010s. Budget cuts forced NASA to pull out of a planned collaboration with the European Space Agency which included a rover mission.[16] By the summer of 2012, a program that had been launching a mission to Mars every two years suddenly found itself with no missions approved after 2013.[17]

In 2011, the Planetary Science Decadal Survey, a report from the National Academies of Sciences, Engineering, and Medicine containing an influential set of recommendations made by the planetary science community, stated that the top priority of NASA's planetary exploration program in the decade between 2013 and 2022 should be to begin a Mars Sample Return campaign, a four-mission project to cache, retrieve, launch, and safely return samples of the Martian surface to Earth. The report stated that NASA should invest in a sample-caching rover as the first step in this effort, with the goal of keeping costs under US$2.5 billion.[18]

After the success of the Curiosity rover and in response to the recommendations of the decadal survey, NASA announced its intent to launch a new Mars rover mission by 2020 at the American Geophysical Union conference in December 2012.[19]

Though initially hesitant to commit to an ambitious sample-caching capability (and subsequent follow-on missions), a NASA-convened science definition team for the Mars 2020 project released a report in July 2013 that the mission should "select and store a compelling suite of samples in a returnable cache."[20]

Design

 Perseverance in the Jet Propulsion Laboratory near Pasadena, California
Perseverance in the Jet Propulsion Laboratory near Pasadena, California

The Perseverance design evolved from its predecessor, the Curiosity rover. The two rovers share a similar body plan, landing system, cruise stage, and power system, but the design was improved in several ways for Perseverance. Engineers designed the rover wheels to be more robust than Curiosity's wheels, which have sustained some damage.[21] Perseverance has thicker, more durable aluminum wheels, with reduced width and a greater diameter, 52.5 cm (20.7 in), than Curiosity's 50 cm (20 in) wheels.[22][23] The aluminum wheels are covered with cleats for traction and curved titanium spokes for springy support.[24] The heat shield for the rover was made out of phenolic-impregnated carbon ablator (PICA), to allow it to withstand up to 2,400 °F (1,320 °C) of heat.[25] Like Curiosity, the rover includes a robotic arm, although Perseverance's arm is longer and stronger, measuring 2.1 m (6 ft 11 in). The arm hosts an elaborate rock-coring and sampling mechanism to store geologic samples from the Martian surface in sterile caching tubes.[26] There is also a secondary arm hidden below the rover that helps store the chalk-sized samples. This arm is known as the Sample Handling Assembly (SHA), and is responsible for moving the soil samples to various stations within the Adaptive Caching Assembly (ACA) on the underside of the rover. These stations include volume assessment (measuring the length of sample), imaging, seal dispensing, and hermetic seal station, among others.[27] Owing to the small space in which the SHA must operate, as well as load requirements during sealing activities, the Sample Caching System "is the most complicated, most sophisticated mechanism that we have ever built, tested and readied for spaceflight."[28]

Family portrait on the rover[29]
Family portrait on the rover[29]

The combination of larger instruments, new sampling and caching system, and modified wheels makes Perseverance heavier, weighing 1,025 kg (2,260 lb) compared to Curiosity at 899 kg (1,982 lb)—a 14% increase.[30]

The rover's radioisotope thermoelectric power generator (MMRTG) has a mass of 45 kg (99 lb) and uses 4.8 kg (11 lb) of Plutonium-238 oxide as its power source. The natural decay of plutonium-238, which has a half-life of 87.7 years, gives off heat which is converted to electricity—approximately 110 watts at launch.[31] This will decrease over time as its power source decays.[31] The MMRTG charges two lithium-ion rechargeable batteries which power the rover's activities, and must be recharged periodically. Unlike solar panels, the MMRTG provides engineers with significant flexibility in operating the rover's instruments even at night, during dust storms, and through winter.[31]

The rover's computer uses the BAE Systems RAD750 radiation-hardened single board computer based on a ruggedized PowerPC G3 microprocessor (PowerPC 750). The computer contains 128 megabytes of volatile DRAM, and runs at 133 MHz. The flight software runs on the VxWorks Operating System, is written in C and is able to access 4 gigabytes of NAND non-volatile memory on a separate card.[32] Perseverance relies on three antennas for telemetry, all of which are relayed through craft currently in orbit around Mars. The primary UHF antenna can send data from the rover at a maximum rate of two megabits per second.[33] Two slower X-band antennas provide communications redundancy.

Twin rover

The full-scale engineering model of Perseverance, OPTIMISM rover[a]
The full-scale engineering model of Perseverance, OPTIMISM rover[a]

JPL built a copy of the Perseverance; a twin rover used for testing and problem solving, OPTIMISM (Operational Perseverance Twin for Integration of Mechanisms and Instruments Sent to Mars), a vehicle system test bed (VSTB). It is housed at the JPL Mars Yard and is used to test operational procedures and to aid in problem solving should any issues arise with Perseverance.[34]

Mars Ingenuity helicopter experiment

Location of the base radio station at Perseverance
Antenna for Ingenuity on Perseverance (view from top)
Antenna for Ingenuity and the Sky camera of Perseverance
Ingenuity helicopter deployed on the Martian surface

The Ingenuity helicopter, powered by solar-charged batteries, was sent to Mars in the same bundle with Perseverance. With a mass of 1.8 kg (4.0 lb), it demonstrated the reality of flight in the rarefied Martian atmosphere and the potential usefulness of aerial scouting for rover missions. Its pre-launch experimental test plan was 3 flights in 45 days. As of April 21, 2022, it has made 26 successful flights.[35][36] Ingenuity's 25th successful flight, which occurred on April 8, 2022, saw the helicopter set new records for highest speed and distance traveled during a single flight.[37][38] It carries two cameras but no scientific instruments[39][40][41] and communicates with Earth via a base station onboard Perseverance.[42] The first takeoff was attempted on 19 April 2021 at 07:15 UTC, with livestreaming three hours later at 10:15 UTC confirming the flight.[43][44][45][46][47] It was the first powered flight by an aircraft on another planet.[9] Ingenuity made additional incrementally more ambitious flights, several of which were recorded by Perseverance's cameras.

Name

About twenty K-12 student finalists are standing on a stage, all smiling, and holding a banner that reads "NASA's perseverance rover". In front of them on the stage is a miniature rover.
NASA's Thomas Zurbuchen announced the rover's official name, Perseverance, on 5 March 2020, at Lake Braddock Secondary School in Burke, Virginia. Zurbuchen made the final selection following a 2019 nationwide naming contest that drew more than 28,000 essays by K-12 students from every U.S. state and territory.

Associate Administrator of NASA's Science Mission Directorate, Thomas Zurbuchen selected the name Perseverance following a nationwide K-12 student "name the rover" contest that attracted more than 28,000 proposals. A seventh-grade student, Alexander Mather from Lake Braddock Secondary School in Burke, Virginia, submitted the winning entry at the Jet Propulsion Laboratory. In addition to the honor of naming the rover, Mather and his family were invited to NASA's Kennedy Space Center to watch the rover's July 2020 launch from Cape Canaveral Air Force Station (CCAFS) in Florida.[48]

Mather wrote in his winning essay:

Curiosity. InSight. Spirit. Opportunity. If you think about it, all of these names of past Mars rovers are qualities we possess as humans. We are always curious, and seek opportunity. We have the spirit and insight to explore the Moon, Mars, and beyond. But, if rovers are to be the qualities of us as a race, we missed the most important thing. Perseverance. We as humans evolved as creatures who could learn to adapt to any situation, no matter how harsh. We are a species of explorers, and we will meet many setbacks on the way to Mars. However, we can persevere. We, not as a nation but as humans, will not give up. The human race will always persevere into the future.[48]

Mars transit

The Perseverance rover lifted off successfully on 30 July 2020, at 11:50:00 UTC aboard a United Launch Alliance Atlas V launch vehicle from Space Launch Complex 41, at Cape Canaveral Air Force Station (CCAFS) in Florida.[49]

The rover took about seven months to travel to Mars and made its landing in Jezero Crater on 18 February 2021, to begin its science phase.[50]

After 17 May 2022, The rover will roll uphill, stopping every so often to examine rocks that look to have the best chance of retaining evidence of past life on the planet Mars. On its way back down, Perseverance will collect some of these rocks, placing the samples at the base of the delta to be retrieved by later missions. The goal is to bring this material back to Earth in the 2030s for detailed inspection.[51]

Landing

The 6-m crater created with the impact of the 77-kg tungsten cruise mass balance device released during the EDL stage on February 18, 2021
The landing site and the spacecraft debris
(February 2021)
Variants of routes as seen in March 2021

The successful landing of Perseverance in Jezero Crater was announced at 20:55 UTC on 18 February 2021,[4] the signal from Mars taking 11 minutes to arrive at Earth. The rover touched down at 18°26′41″N 77°27′03″E / 18.4446°N 77.4509°E / 18.4446; 77.4509,[52] roughly 1 km (0.62 mi) southeast of the center of its 7.7 × 6.6 km (4.8 × 4.1 mi)[53] wide landing ellipse. It came down pointed almost directly to the southeast,[54] with the RTG on the back of the vehicle pointing northwest. The descent stage ("sky crane"), parachute and heat shield all came to rest within 1.5 km of the rover (see satellite image). The landing was more accurate than any previous Mars landing; a feat enabled by the experience gained from Curiosity's landing and the use of new steering technology.[53]

One such new technology is Terrain Relative Navigation (TRN), a technique in which the rover compares images of the surface taken during its descent with reference maps, allowing it to make last minute adjustments to its course. The rover also uses the images to select a safe landing site at the last minute, allowing it to land in relatively unhazardous terrain. This enables it to land much closer to its science objectives than previous missions, which all had to use a landing ellipse devoid of hazards.[53]

The landing occurred in the late afternoon, with the first images taken at 15:53:58 on the mission clock (local mean solar time).[55] The landing took place shortly after Mars passed through its northern vernal equinox (Ls = 5.2°), at the start of the astronomical spring, the equivalent of the end of March on Earth.[56]

The parachute descent of the Perseverance rover was photographed by the HiRISE high-resolution camera on the Mars Reconnaissance Orbiter (MRO).[57]

Jezero Crater is a paleolake basin.[58][59] It was selected as the landing site for this mission in part because paleolake basins tend to contain perchlorates.[58][59] Astrobiologist Dr. Kennda Lynch's work in analog environments on Earth suggests that the composition of the crater, including the bottomset deposits accumulated from three different sources in the area, is a likely place to discover evidence of perchlorates-reducing microbes, if such bacteria are living or were formerly living on Mars.[58][59]

Video of Perseverance's parachute deployment and powered landing sequence
Perseverance parachute descent over the Jezero crater photographed by Mars Reconnaissance Orbiter (MRO)

A few days after landing, Perseverance released the first audio recorded on the surface of Mars, capturing the sound of Martian wind[60][61]

During its travels on Mars, NASA scientists had observed around Sol 341 (February 4, 2022) that a small rock had dropped into one of its wheels while the rover was studying the Máaz rock formation. The rock was visible from one of the hazard avoidance cameras, and was determined not to be harmful to the rover's mission. The rock has since stayed on Perseverance's wheels for at least 123 sols (126 days) as the rover traveled over 5 miles (8.0 km) on the surface. NASA deemed that Perseverance had adopted a pet rock for its journey.[62][63]

Instruments

WATSON camera views rocks (Mars; video; 0:05; 10 May 2021)

NASA considered nearly 60 proposals[65][66] for rover instrumentation. On 31 July 2014, NASA announced the seven instruments that would make up the payload for the rover:[67][68]

There are additional cameras and two audio microphones (the first working microphones on Mars), that will be used for engineering support during landing,[86] driving, and collecting samples.[87][88] For a full look at Perseverance's components see Learn About the Rover.

Scientific instruments diagram
Cameras documenting the descent and landing
Cameras onboard the rover
How it works: Targeting scientific objects
Sol 89: Perseverance makes the panorama of surroundings (here with the paired Mastcam-Z cameras)
Sol 92: Perseverance team orders the SuperCam camera to get an enlarged image of stratified layers atop one of the hillocks seen previously on the panorama image

Traverse

Current[89] position of vehicles
Current[89] position of vehicles

It is planned for Perseverance to visit the bottom and upper parts of the 3.4 to 3.8 billion-year-old Neretva Vallis delta, the smooth and etched parts of the Jezero Crater floor deposits interpreted as volcanic ash or aeolian airfall deposits, emplaced before the formation of the delta; the ancient shoreline covered with Transverse Aeolian Ridges (dunes) and mass wasting deposits, and finally, it is planned to climb onto the Jezero Crater rim.[90]

In its progressive commissioning and tests, Perseverance made its first test drive on Mars on 4 March 2021. NASA released photographs of the rover's first wheel tracks on the Martian soil.[91]

Perseverance's first test drive (4 March 2021)
Rover's first wheel tracks
Rover's first test drive
Rocket scour and tracks

Samples cached for the Mars sample-return mission

Mapping Perseverance's samples collected to date
Mapping Perseverance's samples collected to date

In support of the Mars sample-return mission, rock, regolith (Martian 'soil'), and atmosphere samples are being cached by Perseverance. Currently, out of 43 sample tubes, rock sample tubes cached: 8,[92] atmosphere sample tubes cached: 1,[93] witness tubes cached: 1,[94] tubes due to be cached: 33. Before launch, 5 of the 43 tubes were designated “witness tubes” and filled with materials that would capture particulates in the ambient environment of Mars.[95]

Cost

NASA plans to invest roughly US$2.75 billion in the project over 11 years, including US$2.2 billion for the development and building of the hardware, US$243 million for launch services, and US$291 million for 2.5 years of mission operations.[8][96]

Adjusted for inflation, Perseverance is NASA's sixth-most expensive robotic planetary mission, though it is cheaper than its predecessor, Curiosity.[97] Perseverance benefited from spare hardware and "build-to print" designs from the Curiosity mission, which helped reduce development costs and saved "probably tens of millions, if not 100 million dollars" according to Mars 2020 Deputy Chief Engineer Keith Comeaux.[98]

Commemorative artifacts

"Send Your Name to Mars"

NASA's "Send Your Name to Mars" campaign invited people from around the world to submit their names to travel aboard the agency's next rover to Mars. 10,932,295 names were submitted. The names were etched by an electron beam onto three fingernail-sized silicon chips, along with the essays of the 155 finalists in NASA's "Name the Rover" contest. The three chips share space on an anodized plate with a laser engraved graphic representing Earth, Mars, and the Sun. The rays emanating from the Sun contain the phrase "Explore As One" written in Morse code.[99] The plate was then mounted on the rover on 26 March 2020.[100]

"Send Your Name to Mars" campaign of Mars 2020 [29]
"Send Your Name" placard on the Perseverance rover on Earth
(26 March 2020)
A sample of a souvenir boarding pass for those who registered their names to be flown aboard the Perseverance rover as part of the "Send Your Name to Mars" campaign.
"Send Your Name" placard now on Mars
(28 February 2021)

Geocaching in Space Trackable

SHERLOC's calibration target aboard the Perseverance Mars rover with Mars Meteorite in the center of the top row
SHERLOC's calibration target aboard the Perseverance Mars rover with Mars Meteorite in the center of the top row

Part of Perseverance's cargo is a geocaching trackable item viewable with the SHERLOC's WATSON camera.[101]

In 2016, NASA SHERLOC co-investigator Dr. Marc Fries — with help from his son Wyatt — was inspired by Geocaching's 2008 placement of a cache on the International Space Station to set out and try something similar with the rover mission. After floating the idea around mission management, it eventually reached NASA scientist Francis McCubbin, who would join the SHERLOC instrument team as a collaborator to move the project forward. The Geocaching inclusion was scaled-down to a trackable item that players could search for from NASA camera views and then log on to the site.[102] In a manner similar to the "Send Your Name to Mars" campaign, the geocaching trackable code was carefully printed on a one-inch, polycarbonate glass disk serving as part of the rover's calibration target. It will serve as an optical target for the WATSON imager and a spectroscopic standard for the SHERLOC instrument. The disk is made of a prototype astronaut helmet visor material that will be tested for its potential use in crewed missions to Mars. Designs were approved by the mission leads at NASA's Jet Propulsion Laboratory (JPL), NASA Public Affairs, and NASA HQ, in addition to Groundspeak Geocaching HQ.[103][104]

Tribute to healthcare workers

Tribute to Healthcare Workers plate seen before being attached to the rover.[29]
Tribute to Healthcare Workers plate seen before being attached to the rover.[29]

Perseverance launched during the COVID-19 pandemic, which began to affect the mission planning in March 2020. To show appreciation for healthcare workers who helped during the pandemic, an 8 cm × 13 cm (3.1 in × 5.1 in) plate with a staff-and-serpent symbol (a Greek symbol of medicine) was placed on the rover. The project manager, Matt Wallace, said he hoped that future generations going to Mars would be able to appreciate healthcare workers during 2020.[105]

Family portrait of NASA Mars rovers

One of the external plates of Perseverance includes a simplified representation of all previous NASA Martian rovers, Sojourner, Spirit, Opportunity, Curiosity, as well as Perseverance and Ingenuity, similar to the trend of automobile window decals used to show a family's makeup.[106]

NASA outreach to students

In December 2021, the NASA team announced a program to students who have persevered with academic challenges. Those nominated will be rewarded with a personal message beamed back from Mars by the Perseverance rover.

You've Got Perseverance - Nominate A Student(9 December 2021)
You've Got Perseverance - Nominate A Student
(9 December 2021)

Media, cultural impact, and legacy

Parachute with coded message

Perseverance's parachute [29]
Perseverance's parachute [29]

The orange-and-white parachute used to land the rover on Mars contained a coded message that was deciphered by Twitter users. NASA's systems engineer Ian Clark used binary code to hide the message "dare mighty things" in the parachute color pattern. The 70-foot-wide parachute consisted of 80 strips of fabric that form a hemisphere-shape canopy, and each strip consisted of four pieces. Dr. Clark thus had 320 pieces with which to encode the message. He also included the GPS coordinates for the Jet Propulsion Laboratory's headquarters in Pasadena, California (34°11’58” N 118°10’31” W). Clark said that only six people knew about the message before landing. The code was deciphered a few hours after the image was presented by Perseverance's team.[107][108][109]

"Dare mighty things" is a quote attributed to U.S. president Theodore Roosevelt and is the unofficial motto of the Jet Propulsion Laboratory.[110] It adorns many of the JPL center's walls.

Gallery

Early images
Smoke plume from the descent stage right after landing
View from the rear right Hazard Avoidance Camera
Sol 213: the parachute and the backshell are laying on a ridge 2 km north from Perseverance which resides among the ripples of Séítah-S
First color photo
The panoramic view after the first long drive on sol 14
One of Perseverance's wheels
Landing ellipse and further tracks of the rover
Ancient river system surrounding Jezero crater
Start position within the landing ellipse
Landing ellipse and landing site
Campaign plans for 2021–2022
Mars Helicopter Route Options out of 'Séítah' with EDL hardware
Ground tracks
The rover track as of sols 52-64 at Van Zyl Overlook
Variants as of sol 174 (August 19, 2021)
Positioning before the 2021 solar conjunction
R210 is the rover position on sol 210;
H163
1
, H174
2
and H193
3
means 1st, 2nd and 3rd landing sites of Ingenuity on the Field H on sols 163, 174 and 193 respectively
Perseverance captured by Hirise camera on Mars Reconnaissance Orbiter at Maaz formation on Feb. 26, 2022
Reciprocal photos of Perseverance and Ingenuity
Wright Brothers Field, April 2021
Van Zyl Overlook, ,[b] April 2021
Video and audio of the 4-th Ingenuity flight, April 30, 2021
Perseverance spotted by Ingenuity on its 11th flight, August 2021
Rochette, September 2021
Entry-descent-landing debris
Ingenuity photographed the spacecraft backshell and parachute (April 19) and other apparent EDL debris (April 3).[111]
Tracks of Perseverance on Ingenuity’s photos
April 22, 2021. First aerial image taken by Ingenuity
April 22, 2021. Second color image taken by Ingenuity
April 22, 2021. Third color image taken by Ingenuity
July 5, 2021. Ingenuity flies over Perseverance tracks
Panoramic 360° view from Perseverance's landing site, stitched together from more than 100 individual images.
April 4, 2021 (Sol 44) at 14:02:08 local mean solar time. Ingenuity with its solar cells sprinkled with sand stands before the rover
In its third flight Ingenuity spots Perseverance (left) in the aerial photo


Acheron FossaeAcidalia PlanitiaAlba MonsAmazonis PlanitiaAonia PlanitiaArabia TerraArcadia PlanitiaArgentea PlanumArgyre PlanitiaChryse PlanitiaClaritas FossaeCydonia MensaeDaedalia PlanumElysium MonsElysium PlanitiaGale craterHadriaca PateraHellas MontesHellas PlanitiaHesperia PlanumHolden craterIcaria PlanumIsidis PlanitiaJezero craterLomonosov craterLucus PlanumLycus SulciLyot craterLunae PlanumMalea PlanumMaraldi craterMareotis FossaeMareotis TempeMargaritifer TerraMie craterMilankovič craterNepenthes MensaeNereidum MontesNilosyrtis MensaeNoachis TerraOlympica FossaeOlympus MonsPlanum AustralePromethei TerraProtonilus MensaeSirenumSisyphi PlanumSolis PlanumSyria PlanumTantalus FossaeTempe TerraTerra CimmeriaTerra SabaeaTerra SirenumTharsis MontesTractus CatenaTyrrhen TerraUlysses PateraUranius PateraUtopia PlanitiaValles MarinerisVastitas BorealisXanthe TerraMap of Mars
The image above contains clickable links Interactive image map of the global topography of Mars, overlain with locations of Mars Lander and Rover sites. Hover your mouse over the image to see the names of over 60 prominent geographic features, and click to link to them. Coloring of the base map indicates relative elevations, based on data from the Mars Orbiter Laser Altimeter on NASA's Mars Global Surveyor. Whites and browns indicate the highest elevations (+12 to +8 km); followed by pinks and reds (+8 to +3 km); yellow is 0 km; greens and blues are lower elevations (down to −8 km). Axes are latitude and longitude; Polar regions are noted.
(   Active ROVER  Inactive  Active LANDER  Inactive  Future )
Beagle 2
Bradbury Landing
Deep Space 2


InSight Landing
Mars 2
Mars 3
Mars 6
Mars Polar Lander
Challenger Memorial Station
Mars 2020
Green Valley
Schiaparelli EDM
Carl Sagan Memorial Station
Columbia Memorial Station
Thomas Mutch Memorial Station
Gerald Soffen Memorial Station

Notes

  1. ^ note the difference: the twin rover on Earth is powered by electric cables, while Perseverance on Mars is powered by MMRTG
  2. ^ Aerial image by Ingenuity

See also

References

  1. ^ "Where is Perseverance?". Mars 2020 Mission Perseverance Rover. NASA. Retrieved 12 April 2022.
  2. ^ Landers, Rob (17 February 2021). "It's landing day! What you need to know about Perseverance Rover's landing on Mars". Florida Today. Archived from the original on 19 February 2021. Retrieved 19 February 2021.
  3. ^ "Launch Windows". mars.nasa.gov. NASA. Archived from the original on 31 July 2020. Retrieved 28 July 2020. Public Domain This article incorporates text from this source, which is in the public domain.
  4. ^ a b mars.nasa.gov. "Touchdown! NASA's Mars Perseverance Rover Safely Lands on Red Planet". NASA. Archived from the original on 20 February 2021. Retrieved 18 February 2021. Public Domain This article incorporates text from this source, which is in the public domain.
  5. ^ Overbye, Dennis (19 February 2021). "Perseverance's Pictures From Mars Show NASA Rover's New Home – Scientists working on the mission are eagerly scrutinizing the first images sent back to Earth by the robotic explorer". The New York Times. Archived from the original on 19 February 2021. Retrieved 19 February 2021.
  6. ^ NASA's Perseverance Drives on Mars' Terrain for First Time Archived 6 March 2021 at the Wayback Machine NASA, 2021-03-05.
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External links

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