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Questions tagged [perseverance]

Perseverance is a NASA Mars rover launched in July 2020 and landed in Jezero crater in February 2021. Use with the [mars] tag when asking about the environment it's in. Use with [ingenuity] when asking about its helicopter drone.

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China, UAE and US all sending missions to Mars in 2020 (Summer of L̶o̶v̶e Mars); how far apart are their frequencies?

Gizmodo's Second failure of ExoMars parachute test throws schedule in jeopardy says: ExoMars 2020 is due to launch during a narrow window open between July 25th to August 13th 2020, during which ...
uhoh's user avatar
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Will the Mars 2020 rover's sensitivity to methane be better than Curiosity's?

The New York Times article NASA Rover on Mars Detects Puff of Gas That Hints at Possibility of Life describes the newest detection of a "whiff" of methane on Mars. The article states that ...
uhoh's user avatar
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11 votes
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For how long could the Mars helicopter Ingenuity keep up with the Perseverance rover if it wanted to?

Wikipedia's Mars Helicopter Ingenuity says: It could potentially cover a distance of up to 300 metres (980 ft) per flight. Perseverance is somewhat similar to Curiosity which drove about 22970 ...
uhoh's user avatar
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9 votes
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Is there anything that could speak 900 MHz ZigBee that could hear Ingenuity helicopter besides the Perseverance rover?

Interest is piqued by What could be strong arguments against Ingenuity following Perseverance at a safe distance when the flight test program has been a success? Question: Can anything at Mars, or ...
uhoh's user avatar
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4 votes
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Could Ingenuity stay warmer at night by landing on (or near) Perseverance's RTG?

One concern in How long could the Mars helicopter Ingenuity keep up with the Perseverance rover if it wanted to? is that the helicopter must cycle its battery every night to stay warm, and that could ...
uhoh's user avatar
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11 votes
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Perseverance individual sample collection post-mission; what stops them from blowing away or getting covered and hidden by dust?

I have been seeing videos that the plan after Perseverance is done collecting samples to distribute them in 'strategic' locations around Mars for another rover to drive around and pick up later. Why ...
necroncryptek's user avatar
7 votes
1 answer
441 views

Balancing Perseverance Mars Rover; couldn't they just "move stuff around a little" rather than add 6+ kg of dead weight?

The NASA News item NASA's Perseverance Mars Rover Gets Balanced says: Just as an auto mechanic places small weights on a car tire's rim to bring it into balance, the Perseverance team analyzed the ...
uhoh's user avatar
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On what kind of martian soil or rock will the Perseverance rover drop its helicopter?

The image below is cropped from the high resolution version of NASA's Mars Helicopter and Perseverance Rover PIA23824 and shows the helicopter in it's stowed position on the underside of the rover ...
uhoh's user avatar
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5 votes
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What is the equivalent of Curiosity's "MSL" in the context of Perseverance? What's the official name of the mission? Are the distinctions similar?

Answers to Where does MSL end and Curiosity begin? explain the difference. There was much fanfare for the naming contest for the Perseverance rover, but I don't know what the mission is called. ...
uhoh's user avatar
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How will Perseverance's selfie skills compare to Curiosity's? Will it have any additional selfie-related capabilities?

The design of the Mars 2020 rover Perseverance benefits from years of operational experience with Curiosity. While 2020's instrument suite differs in several ways it looks remarkably similar to ...
uhoh's user avatar
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Will the Emirate Mars Mission, Tianwen-1 and Mars 2020 Mission get closer to each other or spread out on their way to Mars?

Background & Introduction: On August 2, 2020 the brand new Where Is Roadster page Spacecraft launched to Mars in 2020 (announced here) said that it had been: 13 days, 3 hours, 47 minutes and 13 ...
uhoh's user avatar
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How long did the plasma blackouts of Perseverance's signals to MRO and direct-to-Earth last during its seven minutes of terror?

Congratulations to NASA JPL and the Perseverance Team and everyone else who participated and contributed in some way! Watching the live feed of the EDL seven minutes of terror I heard there was a ...
uhoh's user avatar
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62 votes
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How were Perseverance's cables "cut" after touching down?

In the NASA conference today regarding Perseverance's successful landing on Mars, they talked about how you can see the cable that held the rover in this picture below (I circled the cable). I'm ...
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27 votes
8 answers
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Can we power things (like cars or similar rovers) on earth in the same way Perseverance generates power?

I was watching a video on the engineering of Perseverance and it states that the rover is powered by 4.8kg of Plutonium Dioxide. I was wondering if that similar process of electricity generation can ...
ParthianShotgun's user avatar
14 votes
4 answers
6k views

How did the Perseverance rover land on Mars with the retro rockets apparently stopped?

Is there an explanation for the absence of any sign that would demonstrate the eight retro rockets in the image below were really working? It seems that no gas was getting out of the nozzles. The sky ...
azot's user avatar
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2 answers
2k views

Did the Curiosity and Perseverance rover brains do the driving from Earth to Mars?

This interesting answer to Why did NASA intentionally crash-land the Curiosity and Perseverance sky cranes on Mars? leads me to wonder if the Curiosity and Perseverance rover computers were in charge ...
uhoh's user avatar
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7 votes
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How could the landing date of Perseverance Rover be fixed irrespective of 26 days launch window?

I am very much aware of this question from 2018 by @uhoh - Why would InSight's arrival date at Mars be fixed, and independent of the launch date?. I was led here by a similar question which arose in ...
OrangeDurito's user avatar
7 votes
2 answers
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Difference between "mafic floor" and "olivine-bearing floor" in Jezero crater? (Perseverance landing site)

Figure 3: Main geologic units within Jezero crater shown on a basemap constructed from images from the High Resolution Imaging Science Experiment (HiRISE) camera onboard the Mars Reconnaissance ...
uhoh's user avatar
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Why did NASA intentionally crash-land the Curiosity and Perseverance sky cranes on Mars?

The sky cranes for both the Curiosity and Perseverance landing systems were both intentionally crashed into Mars. According to this answer regarding intentional crash-landing of spacecraft in general, ...
taltman's user avatar
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1 answer
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How many square meters of solar panel to power a MOXIE-like oxygen source per person?

If I wanted to live in a box on Mars to write my screenplay about living in a box on Mars, how many square meters of solar panels would I need to power a MOXIE-like CO2-to-O2 converter in order to ...
uhoh's user avatar
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3 votes
1 answer
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Why not a landing platform with solar cells on the Mars 2020 rover for the helicopter scout?

In May 2018 the Mars Helicopter Scout (MHS) was approved to fly on the Mars 2020 mission. Author: NASA/JPL-Caltec. It's a solar powered helicopter drone with a mass of 1.8 kg and a coaxial rotor ...
Cornelis's user avatar
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2 votes
2 answers
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How Ingenuity ensures it does not fly away from the range of connection from Perseverance?

There must be a range after which Ingenuity cannot communicate with Perseverance. I am not sure what that distance is. How Ingenuity ensures it does not fly away out of that distance? If inadvertently ...
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Will the Mars helicopter be able to remove the dust from solar panels?

Although I'm not that worried about Insight's solar panels that I didn't sleep well because of that, this question got me thinking! The Mars Helicopter Scout is a planned robotic helicopter that will ...
Cornelis's user avatar
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1 vote
4 answers
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Why does the Perseverance Rover do sample caching?

As glad as I am that Perseverance's landing was successful, I'm a bit confused as to why there appears to be so little science equipment aboard the rover (by volume) and why the mission seems to be ...
Dragongeek's user avatar
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14 votes
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Now that Perseverance is "hot" (RTG in place) and before it gets to deep space, how will it stay cool?

As soon as they are assembled MMRTGs continuously produce about 2,000 watts of heat energy. That dips only slightly when they are connected to a load and producing electrical power (about 125 watts ...
uhoh's user avatar
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13 votes
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Will Perseverance be captured into Mars orbit before descent or would it be a direct descent into the atmosphere?

Will Perseverance be captured into Mars orbit before descent or would it be a direct descent into the atmosphere similar to an aerocapture maneuver? It would be helpful if someone could add any ...
Bruce Vici's user avatar
11 votes
1 answer
2k views

Will Curiosity and the Mars 2020 rover be able to communicate with each other via a Mars orbiter?

Curiosity's UHF antenna on sol 2439 Could Curiosity and the Mars 2020 rover communicate with each other via the MRO orbiter ? And would it have advantages ? (Like: " I just saw a meteorite, and it'...
Cornelis's user avatar
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9 votes
1 answer
580 views

Why is the northeastern region of Syrtis Major Planum a selected landing site for the Mars 2020 mission?

Image below: One of the 3 selected landing sites, on the left side of Jezero crater, which is also selected ! A workshop for the Mars 2020 Rover mission was held in February 2017 that selected 3 ...
Cornelis's user avatar
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7 votes
2 answers
726 views

Perseverance Rover to drive carefully for months while helicopter hangs from underside?

The image below is cropped from the high resolution version of NASA's Mars Helicopter and Perseverance Rover PIA23824 and shows the helicopter in it's stowed position on the underside of the rover ...
uhoh's user avatar
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7 votes
0 answers
261 views

Is Perseverance's heat shield's thickness radially symmetric?

I came across this video1 about the Mars 2020 Perseverance rover mission, especially the atmospheric entry phase. It says between about 03:50 and ...
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5 votes
1 answer
463 views

How does the Perseverance Rover store/process large quanties of images?

Dave Gruel (EDL Cam Sute Lead) mentioned on the surface update press conference (22 Feb) that that they collected 30GB of information, including 23,000 images. Where did this information go? Wikipedia ...
Trevor Ian Peacock's user avatar
4 votes
1 answer
769 views

Why is NASA sending wavy grousers to Mars?

In this answer to What are the lines on the wheels of the Perseverance rover called? Are they different than Curiosity's? and in sources linked therein we've learned that the lines across the business ...
uhoh's user avatar
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3 votes
1 answer
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How did MOXIE "know" that it produced 5.4 grams of oxygen? Did it measure pressure rise in a container or just vent it? Did it use an oxygen sensor?

CNN's Perseverance rover just made oxygen on Mars is great and welcome news! While Ingenuity has been achieving one "first" on Mars Perseverance was quietly achieving yet another. After ...
uhoh's user avatar
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3 votes
1 answer
127 views

Are there (detailed) images or diagrams of the rotating drill carousel and the small robotic arm which are housed in the belly of Perseverance?

The sample handling page at the Mars 2020 mission site shows us the rover with at its front a circle that probably contains the rotating drill carousel ? However it states that the belly of the rover ...
Cornelis's user avatar
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3 votes
3 answers
726 views

Perseverance current position

Is there any website which shows Perseverance live / current position relative to earth or sun ? (Because i couldnt find any so far)
pafin's user avatar
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3 votes
1 answer
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When the Mars 2020 and Mars Science Laboratory missions were in deep space, what antennas did they have available to communicate with Earth?

This thorough answer to Did the Curiosity and Perseverance rover brains do the driving from Earth to Mars? explains that during deep space flight the rovers' computers were doing most of the thinking ...
uhoh's user avatar
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3 votes
2 answers
81 views

Has ChemCam been used to characterize the martian atmosphere?

Laser-Induced Breakdown Spectroscopy (LIBS) can be used to measure the composition of a solid, a liquid or a gas. LIBS is the technology used in ChemCam of the Curiosity rover and in the SuperCam of ...
usernumber's user avatar
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2 votes
1 answer
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How does the Mars 2020 rover's suspension and center of gravity compare to Curiosity's?

Gizmodo's NASA Put Wheels on Its Mars 2020 Rover and Holy Crap This Is Actually Happening says: The tube-like legs that support the wheels are constructed from titanium, and they’re similar to high-...
uhoh's user avatar
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2 votes
0 answers
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At what inclined grade would Curiosity or Perseverance require twice the electrical power to drive compared to driving on flat terrain?

Motors have losses and friction, and compaction of soil by a rovers wheels are lossy as well. Driving over bumps/topography requires extra work going up that isn't recovered when going back down. The ...
uhoh's user avatar
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2 votes
1 answer
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What were the 21 potential landing sites for the Mars 2020 mission?

In August 2015 more than 150 scientists attended a conference to evaluate 21 potential landing sites for NASA's next rover, a mission called Mars 2020. Out of those proposed landing sites the Mars ...
Cornelis's user avatar
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2 votes
1 answer
150 views

MMRTG- thermal and electrical output

I haven’t been able to find a definitive number for the thermal output (in watts) of the MMRTG used aboard the Perseverance rover. The numbers I’ve seen range from 1950 watts to over 2000. I also ...
Lonely Fox's user avatar
1 vote
0 answers
97 views

How does the wind behave throughout the day in Jezero Crater? (worried about Ingenuity)

JPL tweet links to mars.nasa.gov's Flying on Mars Is Getting Harder and Harder which explains that seasonal changes are lowering the density of the local atmosphere, presumably due to warmer seasonal ...
uhoh's user avatar
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1 vote
1 answer
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How cold do Curiosity's & Perseverance's appendages get at night with all those sensitive cameras and lasers?

cropped from PIA19920: Curiosity Self-Portrait at 'Big Sky' Drilling Site MastCam-Z, ChemCam/SuperCam and MAHLI are optical systems and ChemCam includes a telescope and a pulsed laser, but the ...
uhoh's user avatar
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-2 votes
4 answers
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The Mars parachute opened against a black sky on Earth but a blue-magenta sky on Mars during Perseverance landing. How is it possible? [closed]

I have discovered two images (see below) and I do not find an explanation for the different color of the sky as seen from below the parachute just starting to deploy. The video with the test performed ...
azot's user avatar
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18 votes
1 answer
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Did the Perseverance and Curiosity skycranes land gently, or did they crash?

I don't think I found any references as to further fate of the skycranes after detaching the rovers other than them "flying away" from the rover. Does NASA make any minimal effort to land ...
SF.'s user avatar
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17 votes
2 answers
1k views

Why is Perseverance's RTG lifetime only 14 years?

The MMRTG uses Pu-238, which has a half-life of 87.7 years. So after 14[1] years it should be able to output a little over 80% of the power, which naively to me seems like it should be enough. What is ...
StanOverflow's user avatar
15 votes
1 answer
980 views

Why do Ingenuity's legs differ?

In the pictures below, I notice that not all of the legs of Ingenuity are the same (look at the end of them, directly touching the surface). It looks like a single one is different than the other 3. ...
zabop's user avatar
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13 votes
1 answer
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How did Ingenuity get such a sharp image of the shadow of its own high-speed helicopter blades?

On the NASA released self-picture of Ingenuity, shot while hovering over Mars' surface the shadow of Ingenuity with its blades is very clean. The rotational speed of the blades is said to be around ...
Tom's user avatar
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12 votes
2 answers
1k views

Why make Ingenuity survive some "brutally cold Martian nights" before its first attempt at flight?

NASA's Perseverance Mars Rover tweeted: Ingenuity, the Mars Helicopter I carry, is working as expected. I’m currently charging it, but once I set it down, it’ll rely solely on its solar panels. If it ...
uhoh's user avatar
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12 votes
0 answers
440 views

What would be the disadvantages in Ingenuity accompanying Perseverance at a safe distance when the flight test program has been a success?

This answer to the question "How long could the Mars helicopter Ingenuity keep up with the Perseverance rover if it wanted to?" reasons that indeed it could for years ! But according to the ...
Cornelis's user avatar
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