Questions tagged [rovers]

Questions about vehicles sent to extraterrestrial bodies, generally for use in data collection.

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Why are Perseverance's wheels flatter?

As visible in the image above (and as most of you would have noticed!) the wheels on the upcoming NASA/JPL rover Perseverance seems to be largely different from Curiosity's wheels. A notable ...
William R. Ebenezer's user avatar
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What are the maximum data capacities of the active rovers on Mars?

Many rovers have been sent to Mars and, as now, some are still working there. Does anyone know the maximum data capacity of each active rover? Curiosity Perseverance Zhurong
RANSARA009's user avatar
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Open source hardware at NASA

Given NASA has its open source software repository, I can not really find its open source hardware counterpart so I suppose such a thing does not exist. Is that true? The 3D models site (GitHub mirror?...
Kozuch's user avatar
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Why is Curiosity's rocker-bogie mounted in it's current configuration

In this question, it is stated that by driving Curiosity backwards they could get more mileage out of it's wheels, as the rocker bogie puts less pressure on them that way. Now, the obvious question is:...
Diego Sánchez's user avatar
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Which robotic spacecraft have autonomous operation capabilities?

I am searching for an overview of autonomous space robots integrating motion planning capabilities, such as a list of robots (past and present). So far, I have found these robots: Mars exploration ...
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How many solar system bodies have had their magnetic fields directly measured?

Discussion below this post lead me to wonder: Question: How many solar system bodies have had their magnetic fields directly measured? Inferences from radio or spectroscopic observations don't count ...
uhoh's user avatar
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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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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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Why is NASA waiting until Artemis V to bring a rover?

Crewed moon rovers will be a 55 year old technology by the time Artemis III and IV launch, and historically they greatly increased the amount of time lunar astronauts could spend doing science instead ...
qazwsx's user avatar
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Why did the last two NASA rovers land in craters?

Perseverance landed in Jezero crater, Curiosity in Gale crater. Do craters have any specific properties that make them desirable landing sites for rovers?
usernumber's user avatar
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Could a Mars rover reliably navigate using the local magnetic fields?

Mars does not have a global magnetic field which guides charged particles entering the atmosphere. Mars has multiple umbrella-shaped magnetic fields mainly in the Southern Hemisphere, which are ...
DrSheldon's user avatar
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How might one redesign a "Curiosity-class" rover for a mission to Vesta or Ceres?

Vishnu Reddy (1, 2, 3) and their research group are quite active in space exploration both in Earth-based observation and now in the design of future spacecraft, and have recently pseudo-confirmed ...
uhoh's user avatar
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What is hot shoe and cold shoe in MMRTG?

As I was going through the book 'The Design and Engineering of Curiosity' by Emily Lakdawalla, I stumbled on these two words. Are they hot and cold section of thermocouple? What actually they do? The ...
Auberron's user avatar
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Is there a specific reason why NASA put MOXIE on a rover?

MOXIE or The Mars Oxygen In-Situ Resource Utilization Experiment is to be sent to Mars as a part of Perseverance's scientific payload. Sure the experiment is much needed and very anticipated, and ...
SF.'s user avatar
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Could the bright spot on the image captured by Curiosity have been caused by a data transmit or storage failure?

The image above, one of a total of 21 images shot over a 4 minutes span, was captured by Curiosity on June 16,2019 or sol 2438 on Mars. Only in this image a bright spot shows up, while the next and ...
Cornelis's user avatar
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Fate of human-made objects on Mars

Now that Opportunity is dead, and since there are ideas for future human missions to Mars, I wonder if there is a project to collect all our rovers and landers or at least label as historical sites ...
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How are composite materials most frequently or most prominently used in satellites and rovers?

I'd like to understand how composite materials (CMs) are used on satellites and rovers. Which parts are made of CMs? If there are numerous examples, then the ones which are particularly large, or ...
Mirko88's user avatar
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What would have to be done to Perseverance's twin rover Optimism to make it capable of a limited Mars roving mission?

A comment under If the James Web Space Telescope goes up in smoke, is there a backup? mentions that the Perseverance rover has a twin and supports that with a link. I looked, expecting to see some ...
uhoh's user avatar
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How often have dust devils saved a Martian lander or rover?

This answer to How are the Mars Rovers maintained? reminds us that ...much to the surprise of the early Mars scientists and rover teams, Mars takes care of the dust problem for us! Mars' typical ...
uhoh's user avatar
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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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What is the preferred orbital trajectory for a rover/lander to land on a body?

With the new perseverance rover about to launch to mars, I have a question about landers and rover orbital trajectories. Do the landers/rovers circularize their orbit before landing on the body or do ...
Bruce Vici's user avatar
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Curiosity's drive wheel motors' manufacturer?

Although there are answers listed elsewhere on this site about the power requirements for the Curiosity Rover drive wheels, does anyone know what company provided those drive motors?
DrDirt's user avatar
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What is the calculation for the distance VIPER can travel without recharging its batteries?

VIPER, the lunar rover NASA has developed to search for water in the permanently shadowed regions near the south pole of our Moon, will be equipped with (rechargeable) batteries to be able to drive, ...
Cornelis's user avatar
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OTS rechargeable battery for a lunar rover

I've been playing around with ideas for an open source lunar rover. It's based on the Stanford Doggo (video) robot. Are there commercial off-the-shelf rechargeable batteries that might work for such ...
Mike O'Sullivan's user avatar
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How is the temperature of motors used in robotic arm and wheels maintained in a martian rover

The electronic components of the mar's rover are protected from external extreme temperatures with the help of WEB warm electronic box. But what about the motors(which is also an electronic component) ...
L Lawlit's user avatar
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Do Curiosity and Perseverance have gyrocompasses? Has any rover had one? If so, what kind and how do they work?

There is discussion of a gyrocompass in comments on the page How does Curiosity know how to point and move it's high gain antenna in real time? but so far I don't think there is a hard "Yes&...
uhoh's user avatar
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Is ESA's ExoMars TGA getting old and unable to support Rosalind Franklin rover for the full potential duration of its missions and extensions?

Wikipedia's ExoMars explains that the Trace Gas Orbiter or TGO part of the mission was launched in 2016 and the rover was originally scheduled to launch in 2018. This launch was delayed until 2020 and ...
uhoh's user avatar
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1 vote
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68 views

How much altitude will curiosity gain by its climb now from the clay-bearing unit to the sulfate-bearing unit?

According to Space.com's NASA's Curiosity rover starts Red Planet road trip up Martian mountain: Curiosity's last stop from 2019 to this year was the "clay-bearing unit", another ...
uhoh's user avatar
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1 vote
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what C/C++ image processing libraries are used on-board satellites/rovers?

Given that a full blown linux is rarely used in spacecrafts, can popular image processing libraries like opencv be use in space applications? Since radiation hardened processors are much less capable ...
Vinmean's user avatar
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Which would be more prone to regolith-ice-melting issues, a rover's wheels or an astronaut's boots?

This answer to Has NASA “gone south”? Why are astronauts needed to explore the Moon's south pole? and the question What would happen if an Apollo astronaut landed on Pluto? both touch on issues of ...
uhoh's user avatar
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