Questions tagged [mars]

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

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162 views

Would a manned spacecraft on a Mars mission need large windows?

I'm thinking of scenes like this from the film The Martian, where we see large picture windows in one of the modules in the Ares III. Wouldn't the windows look out onto either black space or the Sun ...
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854 views

Color-correcting photos on Mars so that things look like they would on Earth - is it a big correction?

The message at the end of the very cool new NASA JPL video Curiosity at Martian Scenic Overlook says To aid geologists, colors in the image are white balanced so rocks appear the same color as the ...
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90 views

Wondering about materials [closed]

I am currently designing a Revit project on the planet Mars I was wondering what a wall on a base like structure need to consist of to protect its from the planet atmosphere. any thoughts ? regards, ...
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124 views

Delta-v difference between Mars and Moon

Considering a simple Hohmann transfer, does it take less Delta-v and propellant to go to Mars than to the Moon
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105 views

View the surface of Mars via Hubble

Has the surface of Mars been observed by the mirror of Hubble ? For example, it could be a good idea for humans to be able to see the lovely Curiosity Rover via Hubble from above.
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Does a one way mission to Mars make more economic and scientific sense than a two way mission?

A one way mission skips any return rocket needs, extends the research mission by decades and slowly builds up the infrastructure on the surface. The longer mission on Mars would require regular ...
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123 views

What are the geological features for a save place to land in the chaos terrains on Mars? [closed]

Chaos terrains on Mars generally consist of irregular groups of large blocks, some tens of kilometers across and a hundred meters high. The tilted and flat topped blocks form depressions hundreds ...
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1k views

Who will own Mars? [duplicate]

Elon Musk is currently making plans to to go Mars and set up a permanent colony there. When he gets there and assuming the colony survives - who will own Mars? The thought that governments on earth (...
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79 views

Are there studies on human Mars missions available?

Given the poor track record so far for successful unmanned Mars missions (26/55, less than half), and the fact that a manned mission would have to use yet another descent method, let alone a whole lot ...
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44 views

What is the baseline for carbon isotope ratios?

In the Martian atmosphere, the ratio between concentrations of carbon-13 to carbon-12 has been measured, for example reported in Mahaffy, Paul R., et al. "Abundance and isotopic composition of ...
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95 views

Is there any live classes for learning about Mars and Universe by professionals?

I have 10 year old son and he is crazy about Mars, Space, Blackholes, Universe , Rockets, and Satellites. Right now he goes to youtube and tries to learn. But we don't know which video is good and ...
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58 views

Any book overviews the ideas to reach/colonize/terraform Mars? [closed]

I'm recently looking for such a (popular) book(s), that would summarize the currently developed/planned/considered ideas. Zubrin's "Case for Mars" is a whole book just about one proposal (but of ...
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101 views

Could a solar panel be modified to also collect a static charge on Mars?

I was waiting for someone to piece both of these questions together into another question. @Dragongeek was the first, Could a solar panel be modified to create a static charge while spinning to remove ...
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646 views

How do you calculate delta v and thrust for a given time? [closed]

Okay, so assume you have an electric propulsion (no Oberth effect) spacecraft leaving from Earth escape (for example) to Mars (for example). You want to get there much faster than a Hohmann transfer ...
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116 views

How deep a crater could an impactor spacecraft cause on Mars?

What would the best way be to crash an impactor into Mars with greatest topological effect? And how deep a crater could it excavate? Mars missions to date have been designed to approach the planet at ...
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What would be the most appropriate shape for a satellite going to mars?

What kind of shape would be best for a satellite studying mars?
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Why Perseverance's landing ellipse straddled the cliffs in the river delta; why so ambivalent about the two different geologies?

The Perseverance landing site has now been named for Octavia E. Butler and from here there will be a meandering climb to get up on top of the "cliffs" that are in the delta. I think that ...
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98 views

How will SpaceX land its rockets on the unleveled surface of Mars?

SpaceX plans to send the Starship to Mars and to land it there, tail first in a vertical position. Unlike the Perseverance rover, which seems to be able to land on uneven terrain without the need for ...
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46 views

What is the force of asteroids that hit Mars?

Below is a link to an article I was reading (Keeping in mind it was difficult for me to find any other articles of the kind) that talks about how often asteroids hit Mars. Unfortunately, it is very ...
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60 views

Travel To Mars - Fast [duplicate]

I wonder if it is possible to design a mission to Mars that would slingshot around the sun i.e., gravity assist. The Helios misions (which used gravity assist from Sun as I understand) have done this ...
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170 views

Is there any reason other than lack of oxygen Tardigrades can't survive Mars?

If Cyanobacteria or Lichens can survive on Mars could other small organisms like the Tardigrade then survive & flourish among them? Due to the thicker atmosphere to be found the bottom of the ...
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91 views

Can Mars provide vitamins?

How long can nutrients found in Mars along with an algae diet sustain human life?
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461 views

What would happen if an astronaut walked on mars without a spacesuit i.e. wearing just earth clothes? [duplicate]

Which will happen first: Would she die due to lack of oxygen/suffocation or due to lack of pressure/boiling bodily fluids?
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248 views

What would happen if an astronaut took off their helmet on mars? [duplicate]

Would lack of oxygen/suffocation or lack of pressure/blood or body fluids boiling kill her first?
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138 views

Why would ISRO's MOM-2 Mars orbiter mission's apoarion already be decided in such an early call for proposals?

ISRO's announcement Announcement of Opportunity (AO) for future Mars Orbiter Mission (MOM-2) says in part: It is now planned to have the next orbiter mission around Mars for a future launch ...
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99 views

How to determine an available planetary communication window using orbital mechanics?

For class I have an orbit around Mars at an inclination of 63.4 deg and a base site of 55 deg North and was wondering how to work out the communication window, using orbital mechanics. Orbital ...
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49 views

Can cirrus clouds be created on Mars?

On Earth we are thinking about reducing the cirrus clouds to cool off the planet Earth, but can cirrus clouds be created to add to Mars' atmosphere and keep the heat from escaping into space?
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Has SpaceX published a Mars mission profile? [duplicate]

Has SpaceX published a Mars mission profile, or any detail of what is supposed to happen after people land on Mars? I know that Elon Musk has said that his goal is to ferry people and supplies from ...
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41 views

Can we build a sling in space to shoot a ship to Mars faster? [duplicate]

Is this concept covered somewhere I'm curious about resistance and tension and velocity in space versus tons of chemical fuels? If I've missed that can you point me to it?
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Orbit Determination Question for Numerical Launcher Simulation [duplicate]

For a Senior Design Project (Which has been completed and submitted) I (and another teammate) made a numerical simulation for a single stage launch vehicle from mars that included a lot of various ...
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1answer
257 views

Will the sinking of a nuclear reactor into the CO$_2$ deposit on Mars cause a huge explosion? [closed]

Within the CO$_2$ deposit near the south pole of Mars, according to this article 3 subunits have been found with one having a top CO$_2$ layer of about 300 meters thick covered by a water ice layer ...
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1answer
309 views

Reasons to colonize Mars and what would we do there? [closed]

There was another question that was excluded that opened up this can of warms in my head. I have some ideas on why go and what to do there but I wanted to open up and have other ideas coming in for a ...
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201 views

Can you land a ferris wheel-like ship on Mars ….Sideways?

Can you land a ferris wheel-like ship on Mars ….sideways? Envision a typical sci-fi ferris wheel kind of spacecraft, with three habitat elements separated from the central hub by girder type booms (...
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139 views

A Space Gravitational Bus Route - is there such a thing? [closed]

Don't know if this is already been thought of, if it has it would be cool to know the name? Fundamental problem in how the public sees space transport, the problem is we see it as firing a rocking ...
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1answer
81 views

How often does Mars appear at the horizon in our sky? [closed]

How frequently does Mars appear at the horizon in a year(It need not be visible. It just need to be at the horizon)? How long does it take from one of these events to the next one? How long does Mars ...
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2answers
349 views

Has anybody ever picked up the signal transmitted by a successful Mars lander or rover sent by the United States? [closed]

It is known that on February 4, 1966, the picture transmitted from the Moon by Luna 9 was intercepted by UK. The question is, has anybody ever picked up a signal transmitted by a successful Mars ...
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1answer
376 views

Disregarding the distance from Earth, would Mars be more habitable than the Moon? [closed]

Disregarding the distance from Earth, would Mars be more habitable than the Moon? Or better put, disregarding the distance from Earth, which of Mars or the Moon would be easier (in cost and/or effort)...
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586 views

wouldn't adding mass to Mars be problematic for its rotation as well as other planets? [closed]

Was reading Which planet or moon would be most feasible to terraform? and specially https://space.stackexchange.com/a/206/12379 . I am not really good at science or maths so please excuse below and ...
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1answer
71 views

'Space Transit Habitat' source(s) of energy

What are the sources of energy for a Space Transit Habitat(manned) in terms of both propulsion( after passing over the Low Earth Orbit) and required electric facilities)through a 6-8 month voyage to ...
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4answers
496 views

The Mars parachute opened against a black sky on Earth but a blue-magenta sky on Mars during Perseverance landing. How is it possible? [closed]

I have discovered two images (see below) and I do not find an explanation for the different color of the sky as seen from below the parachute just starting to deploy. The video with the test performed ...
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3answers
246 views

A mysterious flash of light on the surface of Mars while the Perseverance rover was landing. What can it be? [closed]

A mysterious light that lasted a fraction of a second appeared on the surface of Mars while the Perseverance rover was descending. What can its source be? See: Perseverance Rover’s Descent and ...
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422 views

About Mars One's journey to Mars

My question is about Mars-one's plan to send people to Mars in 2025. I want to know why it is a one-way trip and not a round-trip. People already landed on Moon in 1969 and successfully came back to ...
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236 views

Is it possible to get a boulder from Phobos to one of the poles of Mars?

And what will then be the speed theoretically at which it hits the surface at one of the poles ? Please, specify your calculations and the trajectory. Edit: Why should this be a bad question, with ...
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“Why don't they use the little helicopter to fly just above the rover's solar panels and blow the dust off?” [duplicate]

The Mars Rover solar panels are covered in dust and can't generate enough power. It is going to kill the mission. There isn't enough wind in the location where its at to blow the dust off. Why not use ...
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3answers
223 views

Why do the Mars pictures sent by Viking 2 and the Chinese Lander show quite different landscapes of the same Utopia Planitia? [duplicate]

The photos transmitted by the Viking 2 lander and those taken by the Chinese rover show quite different landscapes. They do not corroborate each other, also they should look similar, as long as they ...
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2answers
300 views

More water in a crater on Mars than the quantity dumped by the river Nile into the Mediterranean sea in 45 years?

If this is true then the problem of a reliable source of water on Mars, that is available the entire year, is solved. Crater on Mars filled with permanent ice. (Source: ESA, Mars Express) The ...
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3answers
193 views

Why did the communication cable of the Perseverance rover make an angle so great with the other three cables? [closed]

How can you explain the weird position of the communication cable in the image below? The Perseverance about 20 meters above the surface of Mars. The communication cable, between the rover and its ...
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2answers
198 views

What are the real evidence that proved NASA robots has gone to Mars? [closed]

As we've all seen from the videos of NASA with their robots exploring in a desert like surface of Mars. But is it real? since there's no actual footage that came out the landing of the certain robots ...
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1answer
74 views

Why does NASA route all photography and imagery thru Malin Space Systems? Cant they take their own pictures? [closed]

why is Malin Space Systems the sole source for cameras? Space surveillance satellites use far more sophisticated tech and are better funded. like Hubble, older military hardware could be used by NASA ...
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250 views

Even small countries have a few ~30 m diameter parabolic antennas but nobody reported signals coming from the landers on Mars. How is it possible? [duplicate]

The parabolic antennas with diameters of ~30 meters are all over the world. Even small countries have them. However, nobody, except DSN or other entities controlled by the US government, has ever ...

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