Questions tagged [rovers]

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

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7
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2answers
149 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 ...
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2answers
162 views

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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2answers
125 views

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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0answers
41 views

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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0answers
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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 ...
6
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2answers
444 views

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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0answers
69 views

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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0answers
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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 ...
6
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1answer
197 views

How will the Exomars rover communicate back to Earth?

I see here that the Exomars rover has only two UHF monopole antennas. Two UHF monopole antennas are used to communicate with Mars orbiters, including the Trace Gas Orbiter. Does it mean that it ...
4
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1answer
176 views

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 ...
2
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1answer
99 views

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-...
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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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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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3answers
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About how long will Curiosity last on its nuclear power?

Curiosity, we know, has no little nuclear reactor, it has a RTG. Great! But how long will it last? For how many years will our little 1-ton friend be roaming around another planet?
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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 ...
6
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2answers
130 views

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 ...
2
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0answers
39 views

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 ...
3
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1answer
139 views

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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73 views

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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71 views

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 ...
3
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2answers
367 views

Why can't the VIPER lunar rover recharge its 100-day power source using its solar panels?

Source NASA TechCrunch's NASA’s VIPER lunar rover will hunt water on the Moon in 2022 says: VIPER is a limited-time mission; operating at the poles means there’s no sunlight to harvest with solar ...
3
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2answers
127 views

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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2answers
101 views

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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3answers
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Why are Curiosity's wheels aluminum rather than titanium?

I was just reading this article on how Curiosity's aluminum wheels are getting pretty dinged up. Usually titanium alloy is considered an upgrade from aluminum alloys in most applications, from ...
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6answers
6k views

Why are there so few lunar rovers?

I'm a big fan of Curiosity and Opportunity, the Martian rovers. The science is over my head, but the images they've captured are mesmerizing. It seems unusual to me that we have two active Martian ...
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2answers
220 views

What are the technical challenges in building a Titan rover that didn't need heating?

In the discussion of this question it is assumed that we would need to heat the rover so that (most of) it's components were operating at temperatures much hotter than ambient (about 90K). Current ...
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8answers
1k views

How could a fast powerful rover on Mars be powered electrically?

Background The rovers on Mars are slow and weak. If I am to believe what I read, MSL Curiosity only produces 1/6th of a horsepower electric effect, 125 watt. In order to perform tasks like deep ...
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2answers
169 views

How to waterproof a rover?

What changes would be needed to a late model rover to enable it to function under water? What would prevent a rover from functioning under water as is? related: https://astronomy.stackexchange.com/...
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504 views

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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3answers
4k views

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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1answer
206 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 ...
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0answers
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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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0answers
68 views

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 ...
6
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1answer
136 views

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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0answers
75 views

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 ...
14
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2answers
1k views

Does the Curiosity rover really have a chance of driving to the top of Mt. Sharp?

This great answer suggests the limiting high altitude to which the Curiosity rover on Mars could drive would be the top of Mt. Sharp (Aeolis Mons) - in the center of Gale crater. I'm wondering, is ...
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0answers
48 views

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 ...
11
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2answers
441 views

Is there any chance that Opportunity might still recover from the dust storm?

So, with today's announcement, Opportunity was basically declared dead When the dust storm originally engulfed Opportunity last year, mission scientists were hopeful that they might yet recover the ...
11
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1answer
213 views

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 ...
18
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2answers
2k views

Curiosity is still dirty! How will the ExoMARS Rover keep its solar panels dust-free and collecting sufficient power?

update: Current events makes this question even more poignant sols 5183 to 5189, Aug. 23, 2018 - Aug. 29, 2018: Team Continues to Listen for Opportunity Curiosity selfie has been released just a few ...
6
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1answer
315 views

How quickly might a Titan rover or drone get covered in oil and dirt? Will it need windshield-wipers?

These questions and their answers address some potential aspects of a rover on Saturn's moon Titan. Titan rover survival challenges What are the technical challenges in building a Titan rover that ...
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2answers
217 views

Microscopes in space?

There are a lot of telescopes in space (optical, radio, X-ray and Gamma-ray), but how about microscopes? Does the ISS have a general-purpose microscope? It could come in handy for failure analysis or ...
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1answer
1k views

What would a “water” landing on Titan be like? How viscous is the liquid?

The abstract to the recent paper Never-EVER Land - A Titan Flyer Concept is shown below. I've asked about the need for the aircraft to remain in flight continuously and land only at the end of it's ...
5
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1answer
248 views

Has anything close to video (“live” or otherwise) been shot in space from beyond the Moon?

It would be cool to see a short video clip of a rover's eye view of driving across mars. Just a few seconds even. In general, due to limitations in data storage space, bandwidth, and limited ...
2
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0answers
61 views

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?
9
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1answer
306 views

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 ...
12
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2answers
842 views

What risk management options are available for Mars orbiters and rovers to mitigate threat of impacting with Siding Spring cometary debris?

I was reading this article on New Scientist titled Fiercest meteor shower on record to hit Mars via comet. Long story short, the Oort cloud comet C/2013 A1 Siding Spring is predicted to near-miss Mars ...
2
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0answers
63 views

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, ...
2
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1answer
159 views

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 ...
7
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2answers
567 views

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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