Questions tagged [mars]

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

Filter by
Sorted by
Tagged with
1
vote
0answers
276 views

Ammonia synthesis on Mars — has there been any discussion or research?

Ammonia can be used in the production of fertilizer, as a source for nitrogen in soil for plants, in this case for food. Synthesis of ammonia from nitrogen can be done with the help of bacteria using ...
1
vote
0answers
185 views

Was the telltale on the Mars Phoenix Lander used for meteorology? Why not a hot wire anemometer instead?

Reading about ping pong ball anemometers I discovered that the Mars Phoenix Lander had an anemometer of this design, and there are images and GIFs of it moving. When imaged from one or two different ...
1
vote
0answers
159 views

Would the Moon be a better place than Mars anyways? [duplicate]

Wouldn't the Moon be a better place to send people than Mars? If our goal is to really let humans live on a body other than the Earth, why not use transportation that was already worked-out when most ...
1
vote
0answers
49 views

How violent are sand storms on Mars? [duplicate]

In a future manned Mars mission, how bad a sand storm going to affect a mission? What are the measures taken to prevent damage from these sand storms?
1
vote
0answers
113 views

May the chemical propulsion (only) provide sustainable transportation to Mars [closed]

There is little hope that chemical propulsion will have alternative orbital launch in near future. Using the same (even optimized) engines and fuel for inter-orbital operations will increase start-to-...
0
votes
2answers
723 views

What is stopping us from starting to terraform Mars right now?

Mars has stational liquid water on its surface, a CO2-rich atmosphere and its soil might lack some nutrients that plants need to grow there. So, what is stopping us from filling a rocket with seeds ...
0
votes
1answer
138 views

What independent evidence is there that the Zhurong rover landed on Mars in May 2021? [duplicate]

The China National Space Administration announced, on the 17th of May 2021, that the Tianwen 1 mission landed the Zhurong rover on Mars, with the landing taking place on the 15th of May 2021. What ...
0
votes
2answers
162 views

Why a rover bounces after landing on Mars?

Sometime ago I was watching a video which showed that when a rover lands on mars surface it will keep bouncing on Mars' surface like a ball until it gets rid of energy and then it becomes static. But ...
0
votes
2answers
222 views

How big a nuke would be needed to break Phobos out of orbit?

Phobos Radius: 11.267 km Orbital period: 8 hours Equatorial rotation velocity: 11.0 km/h (6.8 mph) (at longest axis) With an 8 hour orbit around Mars it must be going at a fair clip already which ...
0
votes
1answer
242 views

Could a reentry powered monorail and flywheel make a kinetic engine for lift?

On reentry could a flywheel spin on a magnetic bearing creating a centrifugal force to keep the ship level whilst creating a plasma air pocket from the pits in the rotating heat shield? This would ...
0
votes
2answers
197 views

Shock absorbing alternator possible for a rover?

Could replacing a Rovers struts (maybe a faster one that uses shock dampers in the future) with magnets similar to a shack flashlight but more heavier duty work well for recouping energy from movement ...
0
votes
2answers
221 views

Can a ship go straight into geosynchronous orbit of Mars?

What is the easiest orbit or most most fuel efficient orbit to achieve around Mars? How difficult is it to go from one type of orbit to another? I want to see if it is more fuel efficient and less ...
0
votes
1answer
205 views

Is a one-way manned mission to Mars currently possible? [closed]

I read about the manned mission here and I have a few questions: What prevents a return trip from Mars. Why can't a spaceship with efficient fuel, food and oxygen supplies be built for a return trip? ...
0
votes
1answer
458 views

Does an Oxygen regeneration system as depicted in the Martian exist in real-life?

There are some resource questions posed by the book and film The Martian: How much oxygen can you take with you? How much $CO_2$ can be recycled back into oxygen? How much energy would you need for ...
0
votes
1answer
282 views

Transit times to Mars and Jupiter

What would be the travel time from Earth orbit to Mars and Mars to Jupiter while accelerating at 3g and 5g (to a top speed of 1% light speed), braking halfway between each transit point?
0
votes
1answer
86 views

What types of engines are able to go from Earth orbit to Martian orbit? [closed]

What engine is the most efficient in fuel and/or time to go from Earth orbit to Mars orbit and back again that are not capable of launching from the ground?
0
votes
1answer
203 views

What would the effect be if we placed all of our greenhouse gases on Mars?

I don't know how much greenhouse gases are on our planet but what would happen to Mars if we could contain the gases on Earth somehow and transfer it to the surface of Mars? Ignoring the fact that ...
0
votes
1answer
296 views

How long was the trip from Earth to Mars for Insight?

How long was the trip from Earth to Mars for Insight from blastoff to landing?
0
votes
1answer
193 views

A way to go to Mars and come back

I have only 6 months of knowledge about rocket science but I was wondering why can't we do the following to go to Mars and come back to Earth: We can have enough fuel in a rocket at maximum to just go ...
0
votes
3answers
242 views

Can people be in orbit around Mars were they to blast the poles with Nuclear bombs? [closed]

IF we launched a series of nuclear strikes on the polar ice caps on Mars, would it affect anyone in orbit around mars (assuming we could have them in orbit around Mars in such circumstances)?
0
votes
1answer
297 views

Is this a first Mars aerobraking for ESA, or for anyone?

In the ESA video ExoMars at the Red Planet after about 02:10, it says: With ExoMars, ESA is going to use for the first time, a method called aerobraking for a spacecraft in orbit around Mars... ...
0
votes
3answers
261 views

Mars. Would it save time to launch from the ISS?

With the Space X success at re-using rockets, my thought is that the second stage could be refueled at the ISS. Similarly, fuel could be sent to orbit Mars. My thought is it would allow for greater ...
0
votes
1answer
162 views

How to calculate the pressure at the floor of Ganges Cavus on Mars when it is filled to its edge with perfluorobutane?

Perfluorobutane is an inert, high-density colorless gas and has a high Global Warming Potential value of 4800. At about the same temperature of -1.7 ⁰C, it has a density of 11.2 kg/m3, opposed to 2 kg/...
0
votes
3answers
130 views

Mars be magneticly shielded

Can Mars be magneticly shielded by Phobos placed in L1 point of Mars (between Mars and Sun)? Magnetic shield will aid in Martian atmosphere regrow.
0
votes
3answers
504 views

How much soil can be supported by an inflatable habitat on Mars?

What weight of Martian soil can be supported by the top of an inflatable habitat pressurized at Earth's atmosphere? While habitat's shape is a huge factor, this has 20 meter modules, semi-cylindrical ...
0
votes
1answer
203 views

Could Mars be made much more habitable by boulders from Phobos?

Of course, research on Mars is first needed to explore if there is life or has been in the past. But after that, boulders could be thrown from Phobos at specific areas on Mars, like Utopia Planitia, ...
0
votes
1answer
81 views

How could we grow plants on mars? [duplicate]

I was wondering there are ways to grow plants on the planet Mars and what would be needed to help them grow etc. I know some key factors would be full spectrum bulbs and violet blue lights but there ...
0
votes
1answer
265 views

Could a Rotary Rocket charge a super capacitor while descending on Mars?

Could a rotary rocket entering the atmosphere collect enough energy in a super capacitor through the rotors (along with auto rotation) while descending to have a controlled landing in the last few ...
0
votes
1answer
223 views

Mars InSight mission. From dull to shiny copper in just 8 days?

In just 8 days, that hexagonal piece of equipment installed on the InSight lander changed its general appearance from dull to shiny copper (see image 1 and 2). How is it possible? Img. 1. Nov 26, ...
0
votes
1answer
99 views

Can mars have solar panals [duplicate]

Can Mars have Solar Panels? I need to know Please
0
votes
1answer
128 views

Are there enough people who have the resources to pay for a one way trip to Mars to start a colonization?

Are there evidence that shows there are enough people who have the resources to pay for a one way trip to Mars to start a colonization? If there are not, then any near future proejcts won't go further ...
0
votes
2answers
203 views

How to calculate the local maximum solar radiation on Mars from day to day throughout a full martian year?

I would like to know where on Mars the least lowest daily temperatures depending on the time of year will be. At first glance one might think, as I did, that it has to be along its equator, but ...
0
votes
1answer
157 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 ...
0
votes
1answer
846 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 ...
0
votes
1answer
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, ...
0
votes
1answer
121 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
0
votes
1answer
103 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.
0
votes
1answer
125 views

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 ...
0
votes
1answer
122 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 ...
0
votes
1answer
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 (...
0
votes
1answer
74 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 ...
0
votes
1answer
41 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 ...
0
votes
1answer
94 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 ...
0
votes
1answer
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 ...
0
votes
1answer
92 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 ...
0
votes
1answer
639 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 ...
0
votes
2answers
113 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 ...
0
votes
0answers
61 views

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?
0
votes
0answers
63 views

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 ...
0
votes
0answers
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 ...