Questions tagged [rovers]

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

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Aspiring to Build a Space Rover from Scratch – Where to Begin? [closed]

What fundamental concepts, beginner-friendly resources, or online courses would you recommend for someone starting with little to no background in robotics? At first, I want to build a an autonomous ...
Md Ghufran Fazal's user avatar
0 votes
3 answers
297 views

What are the advantages of landers rather than rovers?

Landers are constructed around a centerpiece that its power sources protrude from the side, while rovers power sources are usually built into the rear. Landers are a type of spacecraft built to land ...
Deko Revinio's user avatar
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How far away is Jezero crater from Isidis Planitia? Can Perserverance go to Isidis Planitia?

according to this map Beagle 2's landing site (Isidis Plantina) isn't (too) far from Jezero Crater (landing site of rover Perserverance) If the rover were to turn around towards the location of Isidis ...
Deko Revinio's user avatar
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3 votes
1 answer
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What happened to the Apollo moon rovers? [duplicate]

I wonder, what happened to the moon rovers? Were they left behind or brought back?
Deko Revinio's user avatar
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1 vote
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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
1 vote
2 answers
158 views

Rover wheel placement

Why are the center wheels of the Curiosity rover not in line with the chassis? I understand when turning, one side is in line with an arc it will make. Would the other side's wheels not be on the same ...
Mohit A.'s user avatar
4 votes
1 answer
45 views

How to obtain 3d data from MER Spirit "Planetary Data System" products/files?

TL;DR Given products available in this page, how can I get a 3d model, or at least a point cloud, or as a last chance just a suitable depth map for depth map viewer, for this image? What I tried I ...
jumpjack's user avatar
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11 votes
3 answers
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Why wasn't robotic arm used to free Spirit rover from sand trap? (and other things...)

On Sol 1892 of its mission (01/May/2009) Spirit rover stopped its travel on Mars surface due to a "sand trap", initially (optimistically) defined as "difficult terrain". I have ...
jumpjack's user avatar
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7 votes
1 answer
250 views

Is the Beagle fixable?

We have since learned that Beagle 2 failed to operate successfully, potentially because its solar panels didn't open properly. Now, a collaboration between De Montfort University Leicester (DMU) and ...
Richard's user avatar
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5 votes
2 answers
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What modifications would be necessary to make to a Mars rover to let it land on Phobos or Deimos?

What modifications would be necessary to make to a Mars rover to let it land on Phobos or Deimos? In this question, I found out that a Mars rover would need a host of modifications to land on Phobos ...
Starship - On Strike's user avatar
12 votes
2 answers
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Could a Mars rover go to Phobos or Deimos instead?

Could a Mars rover go to Phobos or Deimos instead of going to Mars? The choice is made after launch, and no further modifications can be made to the rover. Could it land safely? Up to what point could ...
Starship - On Strike's user avatar
0 votes
1 answer
268 views

Has there ever been a dish antenna on a lander? If so, which was the first? How about rovers?

At about 04:49 in Scott Manley's January 30, 2022 video Deep Space Radiation, Black Holes And Other Questions - Episode 14 a painting by the science fiction and ...
uhoh's user avatar
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2 votes
0 answers
99 views

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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8 votes
2 answers
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Fancy locomotion for rovers

For its upcoming ExoMars mission, ESA's rover "Rosalind Franklin" can use its wheels like legs in an insect-like gait, to walk out of deep sand that it can't drive out of. A brief video ...
Camille Goudeseune's user avatar
3 votes
1 answer
124 views

Long lived solar powered rovers without radioisotope heater units (like Zhurong), for use beyond Mars

The Yutu rovers use RHUs to stay warm and survive the two week long lunar nights, every other rover uses nuclear material as well (except Sojourner), but the Zhurong rover uses a novel storage-heating ...
we'll see's user avatar
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4 votes
0 answers
39 views

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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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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12 votes
2 answers
419 views

Is lunar exploration going to need a whole heck of a lot of RTGs? If so, have they started firing up the RTG-making reactors yet?

The November 16, 2021 Northrop Grumman Press Release Highly specialized team to design vehicle for sustainable lunar surface mobility operations begins Northrop Grumman Corporation (NYSE: NOC), is ...
uhoh's user avatar
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6 votes
1 answer
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Were there backup routes planned for the Apollo LRV?

I just finished reading "A Man on the Moon" by Andrew Chaikin, an amazing read. For the missions involving the Lunar Roving Vehicle (LRV, Apollo 15-17), there are some mentions of astronauts ...
olamarre's user avatar
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5 votes
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Did Perseverance visit South Seítah?

This summer, Ingenuity found a track that could yield interesting science results. Has Perseverance driven down South Seítah yet? If not, has the possibility of sending Perseverance there been ...
usernumber's user avatar
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5 votes
0 answers
186 views

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
2 votes
1 answer
323 views

Where will the sample tubes on Perseverance be stocked?

Will these sample tubes stay on the rover itself? Or will they be put on the surface of Mars? This latter way does not make sense to me. Squirrel effect: how could a future rover find them? Storms on ...
ray's user avatar
  • 459
3 votes
0 answers
127 views

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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2 votes
1 answer
526 views

What connection do Mars rovers use to send data to Earth?

How do Mars rovers send data back to Earth? Do they have some kind of built in WI-FI routers or is there any other connection?
RANSARA009's user avatar
1 vote
0 answers
59 views

Moon Buggy Can Ride again? [duplicate]

we all know on the moon there are 3 Moon Buggy's. If we go back to moon again some how find one of Luna rovers from 3 in moon will it be running condition if we give some Repairs?
RANSARA009's user avatar
8 votes
2 answers
686 views

What was it actually like driving the Lunokhod lunar rovers live from the ground? What were some of the biggest challenges?

This answer to How (the heck) did Lunokhod 2 drive, navigate and survive a ~40 kilometer drive over four months on the Moon using 1970's technology? discusses some of the technologies that made this ...
uhoh's user avatar
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7 votes
1 answer
215 views

Have various lunar rovers known their own position on the Moon? If so, how?

Given that there is no satellite navigation on the Moon, have lunar rovers figured out their current location on the surface of the Moon? If so, how? For the ones that have, did they send pictures ...
Bensas's user avatar
  • 193
11 votes
1 answer
291 views

After nine years on Mars, has anything on Curiosity broken yet?

As per Wikipedia's Curiosity (rover), it landed nine years ago today at 6 August 2012, 05:17:57 UTC. This is yet another testament to NASA spacecraft reliability. Since landing, has anything actually ...
uhoh's user avatar
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2 votes
1 answer
234 views

Which is currently further from their landing site: Ingenuity or Perseverance? How far away are they from each now?

Ingenuity has flown seven times now and I'm not certain but I think for at least one of the flights it traveled some distance and landed in a new site. Perseverance has done some traveling as well. ...
uhoh's user avatar
  • 149k
3 votes
1 answer
138 views

Does curiosity's RTG generate neutrons as this NASA CheMin X-ray detection system webpage suggests? If so, how?

mars.nasa.gov's CheMin for Scientists (found here) says (about half-way down): Detection of X­-ray Photons by the CCD CheMin will use a 600 × 600 E2V CCD-224 frame transfer imager operated with a 600 ...
uhoh's user avatar
  • 149k
3 votes
1 answer
201 views

In their first 100 sols which NASA Mars rover drove the furthest and which one the least?

It seems we've passed the 100 day/sol mark for Perseverance. Perseverance and Curiosity are comparable in designs but have had significantly different short term goals; Curiosity was the first of it's ...
uhoh's user avatar
  • 149k
5 votes
2 answers
506 views

What are these details on (renderings of) the Zhurong rover's wheels?

Looking at some renderings of the CNSA Zhurong rover I noticed some curious (pun intended) details on the wheels: This Newsy Today article: In this The Conversation article: seen in some clips of ...
BrendanLuke15's user avatar
19 votes
3 answers
6k views

Why don't we send a rover to a pole of Mercury?

Mercury is among the least explored planets, despite its vicinity to Earth. Just two probes have been sent to Mercury, a third one is underway and no probe landed softly on Mercury so far, Messenger ...
Giovanni's user avatar
  • 633
5 votes
2 answers
193 views

Has any rover dragged a magnet across any solar system body to see what gets picked up or made magnetic measurements of specific rocks or particles?

On Earth, amateur and sometimes professional scientists collect dust from the tops of buildings or mountains (see also) and separate it with a magnet to obtain meteoric material. Not all meteoric ...
uhoh's user avatar
  • 149k
1 vote
1 answer
78 views

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
  • 149k
4 votes
2 answers
756 views

Are Perseverance's wheels really this big?

Business Insider's What is it like to drive the Perseverance rover remotely? A NASA engineer explains the challenges of piloting the vehicle's journey across Mars. includes the following: (Heather ...
uhoh's user avatar
  • 149k
27 votes
3 answers
8k views

Why exactly do robots freeze? How could we engineer around it?

Moon and Mars rovers go through a lot of trouble to keep themselves heated to avoid "freezing to death". My question is why exactly are all these measures necessary? As in, which components ...
VIBrunazo's user avatar
  • 495
2 votes
2 answers
303 views

What is inside Perseverance? Is the only scientific payload the bunch of instruments hanging from the arm?

Perseverance weighs about one ton, it is as big as a car. But what is inside the vehicle that weighs so much? Is the payload only the instruments hanging from the arm? Is all the remaining hardware (...
jumpjack's user avatar
  • 3,033
3 votes
0 answers
52 views

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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8 votes
1 answer
867 views

Sending Mars rover to the Moon

What would happen if a Mars rover (let it be Sojourner, Spirit, Opportunity, Curiosity or Perseverance) would be sent to the Moon instead of the Mars? Let's not deal with the landing and let's ...
Kozuch's user avatar
  • 1,443
9 votes
1 answer
265 views

What are those plastic hoses on Perseverance used for?

I've been trying to find out what this plastic tube is for that got cut during descent. It's a single tube so as far as l can tell not a loop. It ends in the lower right corner of the body (in the ...
RAD6000's user avatar
  • 1,168
6 votes
1 answer
95 views

Perseverance drove for the first time on Mars ! (on Sol 14) Can I find somewhere how much and in what direction?

Image Credit: NASA/JPL-Caltech. The image was acquired on March 6, 2021. (Sol 15) Click on the image, and then again, for a closer view. Is there an (interactive) map that shows the route the ...
Cornelis's user avatar
  • 7,503
9 votes
4 answers
4k views

Is Perseverance unable to move?

The wheels show no sign of use, there are no wheel tracks in any of the raw images, and the where-is-the-rover page shows no movement from Sol 0. Why not?
Lou's user avatar
  • 207
6 votes
1 answer
251 views

How long will the "Send Your Name to Mars" chips aboard the Mars Landers and Rovers last?

I'm talking about the Chips NASA has placed on Curiosity, InSight and Perseverance: You could enter you name on https://mars.nasa.gov/participate/send-your-name/future and NASA etched your name on ...
RAD6000's user avatar
  • 1,168
10 votes
1 answer
913 views

What is all this about? (photo of several small cup-like structures on top of Perseverance)

I have been trying to figure out what this arrangement is for. Could it be where the mast had its 'face' buried prior to deployment? The various cups seem to fit exactly with lenses and positioning ...
giles tester's user avatar
28 votes
7 answers
6k views

Curiosity and Perseverance landing - with so much dust blown everywhere, what's the point of the skycrane?

Curiosity and Perseverance were landed using the rather complex skycrane system because it would prevent the rockets from contaminating the landing site. But the video shows a great deal of dust being ...
ikrase's user avatar
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3 votes
0 answers
97 views

Perseverance landing and the skycrane [duplicate]

I have a question about the skycrane which helped Perseverance NASA landing. In the image below, why there is not something like fire at the mentioned exhausts (I don't know whether exhaust word is ...
user15847's user avatar
4 votes
1 answer
489 views

Download all Perseverance Raw Images

I want to make an archive of all the Raw Images Percy will make during her mission. I would love to have separate folders for each Sol. The plan is to run a script which then grabs the images from the ...
RAD6000's user avatar
  • 1,168
62 votes
4 answers
12k views

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 ...
F16Falcon's user avatar
  • 703
3 votes
1 answer
284 views

Venus probe with refrigerated electronics powered by an RTG (more like the Mars rovers)

Because of the very high surface temperatures on Venus (~450 oC) conventional semiconductor electronics will not work. Discussion of surface probes to Venus talk about using vacuum electronics, ...
Roger Wood's user avatar
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