Questions tagged [rovers]

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

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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 ...
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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 ...
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How are the Mars Rovers maintained?

I am really curious in finding out how the Mars Rovers are maintained. The communications with the software could be done as long as there are no connection malfunctions, and I suppose they have a ...
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Is there any footage from Mars where you can see Deimos or Phobos getting bigger and smaller as it goes through the sky?

This answer mentions that on Mars, you can see its satellite get bigger and smaller as it rises and sets, because the satellite orbits much closer than our own Moon does from Earth. I'm pretty sure ...
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ROV-E compact configuration

Assuming that ROV-E could be employed in a real space mission, which would be the best configuration to store it in a larger spacecraft or linked to a larger spacecraft? Is it possible to modify the ...
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Is it allowed to interact with research satelites / rovers using the radio?

Let's say I have a SDR (software defined radio) like the HackRF One at home, access to a huge amplifier circuit and a giant antenna (at my university). Is there a law that prohibits receiving / ...
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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 ...
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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 ...
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Is Perseverance still in Safe Mode?

Messages in The Pod Bay and Space.com's NASA: Mars rover Perseverance in 'safe mode' after launch, but should recover both said that Perseverance was in "Safe Mode". Is it still?
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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 ...
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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 ...
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Will Perseverance's landing be live streamed?

I know that the launch will be live streamed, but I am interested in the landing. Is there a plan to make it possible for the general public to get access to landing video as soon as mission control? ...
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At what incline would curiosity require twice the electrical power to drive compared to a flat grade?

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 ...
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How are Curiosity's batteries doing after all these years? Have they degraded significantly?

Curiosity has spent 2820 sols on Mars and this answer to About how long will Curiosity last on its nuclear power? points out that its batteries may wear out faster than its RTG. Question: How are ...
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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 ...
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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 ...
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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 ...
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Are Mars rovers in continuous contact with Earth when in line of sight?

The NASA Perseverance rover Communications page describes the Ultra-High Frequency Antenna, the X-band High-Gain Antenna, and the X-band Low-Gain Antenna but does not mention how often it will be in ...
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Could Mars Rovers be lighter or faster if they didn't have to be tested on Earth?

Watching this video of Perserverance being tested on Earth, it occurred to me that requiring it to stand, drive, climb, etc. under 1g is, in some sense, overkill. Could this (or other) rovers be made ...
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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 ...
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What “flickering goggles” do JPL scientists rely on to explore the Martian surface “in genuine 3D”?

Gizmodo's NASA Is Using Red and Blue 3D Glasses to Safely Drive the Mars Rover While Working From Home says: To safely navigate the Curiosity rover across the surface of Mars, over 120 million miles ...
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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 ...
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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 ...
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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 ...
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Why does the Perseverance rover have such complicated shaped spokes in its wheels?

Phys.org's NASA's Perseverance Mars rover gets its wheels and air brakes has some interesting photos includes some nice photos and below I've included a cropped section of a photo of one of ...
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How will Mars 2020 rover 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 ...
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DIY Lunar regolith simulant

I'm looking to make a physical lunar regolith stimulant at home. I don't care about chemical composition, color, or anything like that, but I'd like it to behave similarly to actual lunar regolith in ...
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How bright is twilight on Mars compared to Earth?

The surprising answer to How much more quickly does night come on Mars compared to Earth? Will it be easier to see Mercury there? is "up to two hours(!)" "...indicating that Martian dust extends very ...
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Do Mars rovers protect optical windows during dust storms? Do they “avert their eyes” or do they just “grin and bear it”?

The question Did any lander or rover photograph the sun rising or setting during a Martian dust storm? makes me think of the images below showing the stuff blown around and on to martian rovers. I'm ...
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Are there methods of lightning detection on Mars?

Teslarati's NASA’s next Mars rover will pave the way for humans includes the graphic below which is an artists conception of a dust storm on mars. It shows what looks like lightning or some kind of ...
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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?
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Are the lines on the wheels of the Mars 2020 rover wavy? If so, why?

CNET's NASA narrows down Mars 2020 rover names: Hello, Fido? includes the image below. I'm not sure if the rover is moving and a rolling shutter was in use, or if the lines on the wheels are really ...
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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, ...
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Why only 100 days for VIPER to look for water in the lunar south pole region?

VIPER is a lunar rover by NASA that will be tasked with prospecting for lunar resources, especially water ice, in permanently shadowed areas in the lunar south pole region. It is meant to support the ...
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How fast could the Tesla Cybertruck drive on Mars?

Elon Musk said "Tesla Cybertruck (pressurized edition) will be official truck of Mars". Lets estimate its driving on flat sands to achieve some sort of maximum performance at 0.38 g, 0.07 bar and −70°...
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Why can't the VIPER lunar rover recharge its 100-day power source using its solar panels?

update: NASA wants ideas for keeping Moon missions powered in the dark Source NASA TechCrunch's NASA’s VIPER lunar rover will hunt water on the Moon in 2022 says: VIPER is a limited-time mission; ...
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Where are the rocks on a moon rover stored?

Where are the rocks on a moon rover stored? Some people say it's turned into powder. And how do they collect the rocks from Mars?
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Have lunar (or martian) rovers exploited shadows, perhaps for terrain comprehension or obstacle avoidance?

This answer proposes that light bars would be better than a single headlight for night time navigation on the Moon because a single headlight will generate hard shadows. Considering this is exactly ...
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Do the Mars rovers have to be stationary to turn?

I saw a video of the mars rover curiosity turning in place. It seemed really stable by turning its wheels it was able to easily reorient itself even on a slope while not moving forward. This made me ...
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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 ...
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What was the driving record of each rover on Mars in one sol, and when?

Both Mars rovers Opportunity and Spirit had a top speed of 180 meters/hour on flat hard ground, but their hazard avoidance software caused them to stop every 10 seconds for 20 seconds to observe and ...
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Rover vs pathfinder vs lander?

I am confused in difference between rover and pathfinder and lander I have often read/heard all these three terms when searching/studying about Mars Although all 3 of these are parts of space craft ...
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Why does Curiosity have two images of itself on itself, or is one a QR-code?

The first image in CNN"s New images show Mars as you've never seen it before shows a partial "selfie" by the Curiosity rover which includes what looks like two images on the rover itself. The one on ...
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Why a rover bumps after landing on Mars?

Sometime ago I was watching a video which showed that when a rover lands on mars surface it will keep bumping on mars surface like a ball until it gets rid of stored energy and then it becomes static. ...
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Is there any way to land a rover on the Moon without using any thrusters?

Is there any way to land a rover on the moon without using any thruster, with the help of Thermocol, Cotton, Bubble wrap or any other packaging material, like we can receive from online shop?
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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 ...
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1answer
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Will the Rosalind Franklin (ExoMars) rover solar panels be able to clear themselves of dust by tilting?

The BBC News item 'Rosalind Franklin' Mars rover assembly completed contains a short video, and I show some screen shots below. It looks like the panels unfold twice, from two stacks of three, to six ...
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Where on Mars will China's rover land?

Inspired by this question about all the missions to Mars in 2020, where on this planet will the rover of the mission that China has planned, land and operate ?
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How did astronauts using rovers tell direction without compasses on the Moon? [duplicate]

I read that the astronauts who used Lunar rovers used heading indicators, which typically use compasses, for direction. How, on the Moon, did their equipment tell the direction of travel, presuming a ...
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Why was the LRV's speed gauge displaying metric units?

In the question Why did NASA use U.S customary units? it was basically stated in the answers that even when metric units were used "internally" (e.g. the AGC), the units presented to the astronauts ...

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