Questions tagged [mars]

Questions about the science or exploration of the planet Mars. See wiki for related tags.

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Which were the more than 60 (!) candidate locations for the Mars 2020 rover?

Four years ago I asked for the 21 potential landing sites for the Mars 2020 mission in this question, but now I've learned that there were more than 60 candidate locations ! From NASA Announces ...
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What will be more important for the first NASA led human mission to Mars, the exploration of important science targets or the mining of water ice?

A few months after NASA's decision in November 2018 that Jezero Crater would be the landing site for the Mars 2020 rover mission, the research article The Geology and Astrobiology of McLaughlin Crater,...
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How to protect Mars/Moon mission crews against meteors?

Humans are expected to return to the Moon (see Artemis) and maybe go to Mars (see this and this) within a decade or two. Meteors frequently strike the surface of both the Moon and Mars (one can't ...
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How much memory did the Opportunity rover have (in bytes)? [closed]

How many GB/TB of memory did Opportunity have in total? How much of it was used during the mission?
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Why are Moon Rockets (Saturn V, N1) so much bigger than the Titan IIIE?

In what little knowledge of space and rockets I have, it seems to me that the further the object your aiming for, the more fuel you’ll need, and the bigger engines you’ll need. Having compared the ...
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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) ...
4 votes
3 answers
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Mars crewed trip - earliest year technology was available?

With the technology built for the Moon landings, would it have been possible to send people to Mars? If no, what would have been the earliest year technology would have been available? @Fred said '...
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Cold-tolerant Mars electronics

For humans Mars isn't cold: there is little atmosphere to remove the waste heat from metabolism and life support equipment. But for electronics lacking an RTG, heat loss is a problem. Ingenuity, being ...
25 votes
2 answers
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Could a human in a spacesuit survive a Skycrane landing on Mars?

As the question says. Could a human in an appropriate space suit survive the forces, temperatures etc they would experience during the atmospheric entry, parachute descent and skycrane landing as used ...
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What is the minimum transfer time for Earth/Mars cycler and still remain balllistic?

The classic Aldrin cycler doesn’t require onboard fuel when accounting for both earth and mars gravity assists. Which is fantastic. But it has a transfer time of roughly 5 months out to Mars. We ...
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What does LMO mean?

I know that LEO means low Earth orbit. I thought that LMO would mean low Mars orbit, but my friend said it means low Mercury orbit. Does LMO mean low Mars orbit, low Mercury orbit, none of those or ...
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Will Starship get refueled in Mars orbit?

The current plans of Spacex is to have Starship get refueled in LEO and then fly to Mars and refuel it there on the ground. Will Starship also have to get refuel while it is in orbit around Mars on it'...
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Why are cone shaped heat shields used for Mars entry?

Heat shields used for Earth reentry are usually curved but heat shields used for Mars’ entry are coned shaped. Why is this?
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What is the distance between Mars and the lagrange point L2 Mars Sun? [duplicate]

I am writing a science fiction novel that is more soft that hard sci fi but I would like to know at least an estimat of the distances between L2 Mars Sun and Mars. I know that asking for an exact ...
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Growing Mars crops in sunlight vs LEDs

There is extensive research on growing food on Mars, and I'm particularly interested in optimizing food production. Given equal area in a greenhouse, is it more efficient to grow crops on Martian ...
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How can I show the ideal path from Earth to Mars in a vacuum using calculus?

I would like to use calculus to try and model the optimal path to mars in space, assuming the rocket starts with an initial velocity in the vacuum of space, and only accelerates due to the Sun's ...
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What does it mean when they say "switch to 32K " during the Phoenix Mars entry

In the Phoenix Mars entry video they keep saying "Odyssey switching to 32k", "Stop of Odyssey unintelligible Data and switch to 32k",and "We ...
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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 ...
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1 answer
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What is the difference between a Trans-Mars Injection and a Mars Transfer Orbit?

So I'm using this transfer orbit calculator and when simulating a transfer from LEO to Mars, in the delta-v breakdown, appear two different values: TMI (Trans-Mars Injection), at around 3000 m/s, and ...
5 votes
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Would it be practical to fly a probe to Mars using gravitational assistance from Venus?

I decided to fly to Mars in KSP using a slingshot of Venus to see if I could save fuel. Since Venus is closer to Earth, you need less fuel to get there. When I tested it I used less fuel, but the ...
6 votes
1 answer
937 views

Will Roadster ever encounter Mars?

During it first closest approach to Mars, it was a mere 5 million miles away from the red planet. According to observer.com, it's ultimate fate will be to crash into the Earth or Venus. However, since ...
3 votes
1 answer
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What are the regularly spaced spots on this piece of material on the surface of Mars?

This image is a part of the Image of the week, a photo acquired by the Perseverance rover's Mastcam-Z camera and selected by public vote. To me it seems like a piece of styrofoam and with a closer ...
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Could there be caves on Mars in the areas inside Jezero crater and the watershed west and north of it where the Mg carbonates are detected?

Both images above are screenshots from Fig. 1 of the article Formation of Magnesium Carbonates on Earth and Implications for Mars The green coloured regions indicate where Mg carbonates were detected, ...
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How much solar radiation hits a spacecraft in transit to Mars?

How can I solve for the amount of radiation that hits a Mars transit vehicle, in transit? What formulas should I use? I am mostly focused on solar radiation.
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Why did NASA's Soujourner Mars rover die at the same time as Pathfinder?

The Soujourner rover operated with the Pathfinder lander, but when pathfinder's mission was declared to be completed, the rover's was too. Why?
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Would not the Mars sample return mission get much more scientific value by equipping the fetch rover with an ExoMars drill unit?

According to this Wikipedia article the NASA-ESA plan includes a sample retrieval mission with a fetch rover landing in 2029 on Mars to collect the samples left behind by the Perseverance rover at ...
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I'm trying to create a trajectory to Mars for a low thrust ion thruster engine using astrogator

I'm trying to create an optimize a trajectory to Mars for a number of low thrust high specific impulse engines. I am having trouble with the initial set up. I created a LEO exit spiral using a ...
4 votes
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Landing a 3-ton payload on the surface of Mars

I'm working on a university project about the construction of sustainable exploration camps on Mars. I want to land a 3-ton structure that will be used as a basis to build a shelter on the surface of ...
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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 ...
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What could be the cause of the extraordinary high Fe counts from the PIXL instrument onboard the Perseverance rover?

In this answer a table is showed with all the elements that were detected by the PIXL instrument on 2 occasions, namely sol 140 and sol 167. As could be expected, X-ray counts were high for Si (...
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How will InSight's hardware be damaged if the heaters fail?

InSight is scheduled to "die" due to the Dust on the solar arrays. From what I understand, once the power goes out, there won't be a way to keep the computers and batteries warm at night, so ...
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Could Perseverance survive if Ingenuity failed?

They both landed successfully and ingenuity was deployed. Perseverance drove away, and then Ingenuity failed. Could Perseverance survive on its own?
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1 answer
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Could Ingenuity survive if Perseverance failed?

They both landed successfully and Ingenuity was deployed. Perseverance drove away, and then failed. Could Ingenuity survive on its own?
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What if Perseverance had experienced a fault after dropping Ingenuity?

When Ingenuity was released on the Martian surface in April 2021, Perseverance had to drive away to let the helicopter recharge its batteries with its solar panel. Was there a concern that the rover ...
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Is there any chance that Opportunity survived, but NASA kept pinging it at the wrong time?

In 2018, NASA's beloved little Opportunity (oppy) was declared dead after a dust storm "killed" it. It may still be OK, but when NASA began recovery effort, they pinged oppy when it was ...
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After one year exploring Jezero's crater floor, has there been any investigation into the presence of trace elements with PIXL?

PIXL instrument chart sample Credit:NASA/JPL-CALTECH Of course PIXL has been used already in Jezero crater, but as far as I know only to identify mineral compositions and textures, as described in ...
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Is crater counting accurate for relative dating between celestial bodies?

This Planetary Society article explains how crater density per unit area on the lunar surface helps identify what regions are older/younger than others. It also mentions that this chronology can be ...
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Do the maximum launch capability figures of Falcon Heavy includes payload adaptor fairings or launch vehicle adaptors?

I would like to learn if stated payload capabilities of Falcon Heavy includes PAF. According to Falcon User's Guide, SpaceX has two different PAF for Falcon 9. In the said document, smaller PAF doesn'...
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Is my calculation of the current day/sol of current Mars month accurate?

I'm working on providing Mars related data for a project. I'm using 2 points of data that are available to me from Rover Environmental Monitoring Station at the Centro de Astrobiologia. The 2 data ...
7 votes
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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 ...
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Mars gyrocopter - feasibility

Due to Mars' low density atmosphere, fixed wing flight requires impractically high velocities, and helicopter flight (as demonstrated by Ingenuity) requires high propeller RPM for sustained flight, so ...
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At what Mars-time did Perseverance land?

The Perseverance rover landed February 18, 2021 at 20:55 UTC, Earth-time. What time was it on Mars when Perseverance landed?
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What are the coordinates of the Schiaparelli parachute?

Schiaparelli crashed at 2.05°S 6.21°W. It's parachute was jettisoned and landed a bit further off. What are the coordinates of the landing site of the parachute?
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What is the size of the HiRISE footprints?

On the HiRISE map, you can display the footprints of prior observations. What is the size in kilometers of these footprints?
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Is there any reason that we have not sent a small mammal to Mars? [duplicate]

It seems like much could be learned in this way but it seems like only orbital missions have had non-human life onboard. I could actually see NASA decide not to send a mouse and certainly not a dog/...
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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 ...
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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 ...
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Why did Curiosity perform TCMs?

Why did Curiosity perform TCM (Trajectory Correction Maneuver)s 1 through 5? 6 makes sense since it needed to adjust course to actually once in the SOI, but the others don't. I understand that this ...
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Mars Insight probe solar panels - could or are they being used to collect some types of surface illumination data?

A 31 March 2022 news item, Mars more volcanically active than we thought, marsquakes hidden in NASA Insight data suggest, states that in relation to measuring of seismic data, A major source of noise ...
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If Beagle 2 had been successful, would it have done anything (in terms of finding out about Mars) that has not been done since?

Based on the scientific equipment on Beagle 2 and the planned or possible activities/experiments is there anything it would or could have done that has not been done since? In other words, if Beagle 2 ...

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