Questions tagged [mars]

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

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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 vote
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 ...
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4 votes
2 answers
245 views

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 ...
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6 votes
1 answer
892 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 ...
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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 ...
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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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3 votes
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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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2 answers
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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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9 votes
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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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2 votes
1 answer
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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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7 votes
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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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1 vote
1 answer
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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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6 votes
3 answers
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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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2 votes
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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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1 vote
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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 ...
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7 votes
1 answer
223 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 ...
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3 votes
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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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1 answer
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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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4 votes
1 answer
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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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8 votes
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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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12 votes
3 answers
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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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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 ...
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12 votes
2 answers
2k views

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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0 votes
2 answers
243 views

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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2 votes
2 answers
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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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13 votes
1 answer
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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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7 votes
1 answer
580 views

What is the current status of ESA/Roscosmos cooperation with regard to the ExoMars Orbiter?

The ExoMars is a cooperative project between ESA and Roscosmos. The second part of ExoMars, the Rosalind Franklin rover, is on hold as a result of the Russian invasion of Ukraine. However an earlier ...
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4 votes
2 answers
229 views

What is the right way to get Mars' sol?

Among the following two methods what is the right way to get the Mars sol date? Using this equation from Timekpeeing on Mars Wikipedia page MSD = (Julian Date using International Atomic Time - ...
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1 vote
1 answer
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Why was Perseverance covering little ground in its early days?

Perseverance has been on Mars for roughly a year. Based on the traverse path of Perseverance, it traveled rather slowly at first, and didn't cover much ground on its first 100 days on the red planet. ...
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4 votes
0 answers
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What can we know or at least deduce about this "mysterious blob in an Ingenuity navcam image"?

Near the end of Mars Guy's new video Mars helicopter escapes sand trap linked below there's an image taken by the Ingenuity helicopter where an out-of-focus bit of debris passes in front of the navcam ...
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  • 148k
2 votes
1 answer
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How did India get to the Mars?

A few years back ISRO sent their orbiter to the Mars, It is known to be the biggest feat achieved by Indian Space Research Organization over the years. It special because ISRO manage to pull this out ...
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3 votes
1 answer
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Mars at its closest is only a few light minutes away -- are different experiments performed when this happens?

While 3 minutes is not exactly real time, it still seems like remotely-controlled experiments of a different nature can be performed that could not be when Mars is farther. Is this correct, that the ...
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10 votes
0 answers
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How well would a supersonic aircraft perform in the Martian atmosphere?

I started getting curious about this question during my Flight Test Engineering class. My professor was talking about a part of the International Standard Atmosphere that is a similar pressure to that ...
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1 vote
1 answer
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GMAT B-Plane to Mars different date

can anybody help me to find how to change the date to the exercise of GMAT in order to work anyway? I'm not able to solve this problem. Thanks
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2 votes
0 answers
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Would a system of geosynchronous magnetic field satelites around Mars protect it from solar wind?

My entire life I've been obsessed with space travel, for the passed few years I've liked the idea of terraforming. I've learned a lot lately and i think I'm ready to begin research for some ...
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14 votes
2 answers
1k views

Would a sufficiently deep cavern on Mars provide habitable temperature and atmospheric pressure? Was Dick Tracy wrong?

Would a sufficiently deep cavern on Mars provide habitable temperature and atmospheric pressure? Dick Tracy discovered minimally dressed Moon People living comfortably outdoors on the Moon. Their Far ...
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5 votes
0 answers
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What's the lowest and the highest ever recorded atmospheric pressure by a Mars lander?

What is the lowest and what's the highest ever recorded air pressure on Mars by an (either roving or stationary) Mars landing probe? As per the answer in this question of mine, it seems the highest ...
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21 votes
2 answers
4k views

Elon Musk's ITS Travel Time to Mars Estimate

The average travel time to Mars has been quoted to be around nine months (~ 270 days). This assumes current propulsion methods and when Mars and Earth are near each other. Musk has been quoted to say ...
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3 votes
0 answers
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Is there a "sample tube manual eject" switch that can be externally accessed on Perseverance?

In the (unlikely) event that Perseverance stops operating before 2026, can the sample fetch rover forcibly detach the already full sample tubes by accessing a manual switch on the rover? Would it make ...
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6 votes
1 answer
109 views

What's been going on with the Emirates Mars Mission after it got to Mars?

China, UAE and US all sending missions to Mars in 2020 (Summer of L̶o̶v̶e Mars); how far apart are their frequencies? notes four missions planned to launch to Mars in that launch-to-Mars window. Here ...
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8 votes
1 answer
786 views

Would it be feasible to decelerate a crewed vehicle from ~25 km/s only using the atmosphere of Mars (in the context of an "express transit")?

I boldly assumed it would some day be possible to accelerate a crewed vehicle from a refueling station (LEO, GEO, Moon orbit?) to ~35-40 km/s (with several stages) relative to Mars, so it would make ...
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7 votes
1 answer
133 views

Could and should not the search for the location(s) of the Martian methane spikes become the main scientific objective for the Curiosity rover?

In Nature Geoscience's article Independent confirmation of a methane spike on Mars and a source region east of Gale Crater is announced that the reported methane spike on sol 305 by the Tunable Laser ...
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3 votes
0 answers
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How the number of Sun sensors is chosen for a given spacecraft and mission?

I have to study an ADCS sensors suite and I am struggling to find a criteria to decide how many and in which directions the sun sensors shall be mounted, considering that they are coupled with star ...
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