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Questions tagged [mars]

Questions about the science or exploration of the planet Mars.

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2
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2answers
457 views

Velocity of a rocket needed to get to Mars

At 2:16 in this video, Don Pettit says he used the Rocket Equation to determine the velocity of the rocket needed to travel to Mars, which was 16 km/s. I am not sure as how he did it though, and was ...
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1answer
92 views

Which scientific articles together give proof of all the chemical elements found on Mars?

Wikipedia about the elemental composition of Mars: Based on these data sources, scientists think that the most abundant chemical elements in the Martian crust, besides silicon and oxygen, are iron, ...
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Could not silica aerogel dramatically increase the atmospheric pressure on Mars?

In the NASA article Want to Colonize Mars ? Aerogel Could Help a study about the potential of aerogel as a building material on Mars is reviewed. In an experiment 2-3 centimeters of silica aerogel ...
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80 views

Why is there no microscope on the Mars 2020 rover?

Good magnification microscopes seem both light and cheap. As far as I could find out, there hasn't ever been one on any Mars rovers. The closest I could find is the Mars Hand Lens Imager (MAHLI) which ...
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2answers
129 views

How do you mine water on Mars?

Water is required for human explorers of Mars and it is also widely expected to be used to synthesize methane rocket fuel for the return trip (by combining the water with CO2 and energy to create ...
3
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2answers
114 views

Would spacecraft rot or degrade over time faster on Mars, on The Moon, or in space?

One question I really wanna ask; do spaceship's rot? If they do degrade, does being on Mars, on The Moon, or in space increase the rotting speed of the spaceship? If so, in which environment would ...
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3answers
3k views

Differences between vehicles used on the Moon and the ones used on Mars

What are the differences in design considerations between Moon rovers and Mars rovers?
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1answer
72 views

Curiosity landing system versus Spirit/Opportunity's [duplicate]

Spirit/Opportunity used airbags to land while Curiosity had a "carrier" with thrusters and chords - which to me sounds heavier and much more complex, therefore also riskier. It seems that it would ...
4
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1answer
107 views

Why are Viking LR results not sufficient evidence of life on Mars?

Gil Levin, one of the scientists involved with the 1976 Viking mission to Mars, has claimed and continues to claim that there is life on Mars, based off the positive results of the Labeled Release (LR)...
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1answer
62 views

Is it recorded and/or documented when and where Curiosity's ChemCam's laser has zapped on Mars?

The article with the title "NASA Rover's Images Show Laser Flash on Martian Rock" tells us that the ChemCam's laser had zapped more than 600 rock and soil targets on Mars since Curiosity landed in ...
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2answers
5k views

SpaceX Starship landing on Moon or Mars: why doesn't it fall over?

How does the SpaceX Starship design accommodate uneven landing surfaces that might not be stable under the weight of the vessel? I don't understand how SpaceX's Starship would be able to land on ...
5
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1answer
805 views

What is the white stuff emerging from a hole on the surface of Mars?

Edit: It can almost certainly be excluded that the white spot was caused by Curiosity's ChemCam's laser, because it doesn't make sense that the laser was used at that time without taking images with ...
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Could the bright spot on the image captured by Curiosity have been caused by a data transmit or storage failure?

The image above, one of a total of 21 images shot over a 4 minutes span, was captured by Curiosity on June 16,2019 or sol 2438 on Mars. Only in this image a bright spot shows up, while the next and ...
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3answers
3k views

How will the crew exit Starship when it lands on Mars?

When SpaceStarship lands Mars, the crew will be almost 50 meters above the surface. How will they get out with all their equipment?
3
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1answer
69 views

Transmission of video and audio signals

I know this is a silly question.In july,2019 NASA's insight captured sound by wind gusts.Here is a link of video that shows the movement of robotic arms and sound of wind on mars. ...
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108 views

Would it not be safe to introduce perchlorate consuming bacteria on Mars, at least for controlled tests?

Since the discovery of the toxic perchlorate being globally distributed in the martian soil the chances for microscopic life there are thought to be greatly reduced.. Even in the RSL's, once thought ...
3
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1answer
150 views

When going to Mars, how do you measure exact distances to determine course corrections?

When probes fly to Mars, they must adjust their trajectories multiple times during transit to ensure correct orbit insertion. They fire their small onboard rockets a little bit to do this. But how do ...
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0answers
120 views

How were Mars' zero elevation datum defined? What are their shapes?

Discussions on Boiling ponds and pools on Mars? led me to Wikipedia's Mars; Geography and naming of surface features which says: Because Mars has no oceans and hence no "sea level", a zero-...
8
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1answer
162 views

What was the driving record of each rover on Mars in one sol, and when?

Both Mars rovers Opportunity and Spirit had a top speed of 180 meters/hour on flat hard ground, but their hazard avoidance software caused them to stop every 10 seconds for 20 seconds to observe and ...
5
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1answer
151 views

Can we grow potato in mars soil?

In the movie The Martian (Wikipedia, IMDB) the astronaut grew potatoes using "soil" from the surface of Mars. Does the surface of Mars have something equivalent to soil? If so, even after being ...
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1answer
73 views

Would snow fall on the surface of Mars because of uncovering the ice deposit in Utopia Planitia?

In 2016 a large ice deposit was found within the Utopia Planitia region on Mars by the SHARAD instrument on board of the Mars Reconnaissance Orbiter. The thickness of the deposit ranges from about 80 ...
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62 views

Why will the next missions to Mars not search for past life where once hydrothermal vents were?

The iron-sulfur world theory and the deep sea vent hypothesis are among the most popular ones to explain the origin of life on Earth. This article (Michalski J et al. Ancient hydrothermal seafloor ...
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2answers
298 views

Is there a list of world wide upcoming space events on the web?

Is there a list of all the international upcoming events like launches, expected arrivals at, and landings on celestial bodies, etc. on the internet ?
2
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1answer
154 views

Why does Curiosity have two images of itself on itself, or is one a QR-code?

The first image in CNN"s New images show Mars as you've never seen it before shows a partial "selfie" by the Curiosity rover which includes what looks like two images on the rover itself. The one on ...
5
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1answer
317 views

What were the life spans of the four Mars rovers?

What were the life spans of all 4 rovers that were sent to Mars? By 4 rovers i mean Sojourner, Spirit and Opportunity and Curiosity? Which of them 4 had maximum and minimum lifetime span?
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74 views

What can be done to get the heat-flow probe next to the Insight lander moving downwards again?

This article of July 12,2019 tells us that in late June 2019 NASA engineers succesfully lifted off the HP³ support structure of the Martian surface and obtained a clear view of the half-submerged heat-...
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2answers
83 views

Why a rover bumps after landing on Mars?

Sometime ago I was watching a video which showed that when a rover lands on mars surface it will keep bumping on mars surface like a ball until it gets rid of stored energy and then it becomes static. ...
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34 views

Is planetary impact testing planned for the InSight Mars lander's seismometers?

The question How could InSight's seismometers be intentionally and meaningfully “pinged”? is a hypothetical and has several good speculative answers. But here I'd like to ask specifically about any ...
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2answers
184 views

Has Mars quaked yet? Any scientific speculation when it might?

We have lots of questions about the Mars lander InSight's seismometers, and I remember reading that they have detected microseisms from wind blowing over InSight's solar panels and the surface of Mars ...
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1answer
129 views

Will the Rosalind Franklin (ExoMars) rover solar panels be able to clear themselves of dust by tilting?

The BBC News item 'Rosalind Franklin' Mars rover assembly completed contains a short video, and I show some screen shots below. It looks like the panels unfold twice, from two stacks of three, to six ...
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2answers
167 views

What is the closest distance SpaceX's Tesla Roadster (Starman) will ever be to Mars?

Elon Musk's own personal Tesla Roadster launched on the Falcon Heavy in November 2018 and unfortunately overshot the orbit of Mars. This short animation shows the trajectory of SpaceX's Roadster. It ...
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3answers
114 views

Will the Mars helicopter be able to remove the dust from solar panels?

Athough i'm not that worried about Insight's solar panels that i didn't sleep well because of that, this question got me thinking ! The Mars Helicopter Scout is a planned robotic helicopter that ...
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0answers
83 views

Where on Mars will China's rover land?

Inspired by this question about all the missions to Mars in 2020, where on this planet will the rover of the mission that China has planned, land and operate ?
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114 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.
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1answer
1k views

Could an areostationary satellite help locate asteroids?

Could NASA put an artificial radar telescope satellite in geosyncronous orbit around Mars to help locate dangerous asteroids on a trajectory that would place them on a path to strike Earth?
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1answer
121 views

How was sky crane (used on Mars Science Laboratory's Curiosity) tested?

This is sky crane: Mars has 1/3 of Earth's gravity, so how was sky crane tested on Earth? Did they even test it at all? Did they repeatedly do the math, and make sure everything works so that they ...
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1answer
50 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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2answers
90 views

Warming Mars by increasing dust infall?

From this article: https://www.universetoday.com/142558/martian-clouds-might-start-with-meteor-trails-through-the-atmosphere/ It suggests that increasing high-level cirrus cloud would significantly ...
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1answer
187 views

Is a Mars return mission by Starship possible without local propellant production, given the current specifications?

Let's imagine that Starship and Super Heavy were currently operational delivering the anticipated performance and reliably performing orbital refueling. As far as I know, Starship is capable of ...
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3answers
140 views

Options for making rocket fuel using the Moon's natural resources

Based on what is known about the chemistry of the lunar surface through remote sensing and surface exploration, what raw ingredients are likely to be available that can be used to make rocket fuel?
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56 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 ...
2
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2answers
67 views

How much would cost to take a kg to the same distance of the planet than LEO in Mars?

In Mars it's needed a much lower velocity to attain orbit. How would this impact the costs of taking 1 kg to the orbit of the planet, at the same distance of the planet than Low Earth Orbit but in ...
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2answers
7k views

Is it possible that Curiosity Rover measured its own methane or failed doing the spectrometry?

NASA published past June high methane concentrations were measured at Mars. This week, NASA's Curiosity Mars rover found a surprising result: the largest amount of methane ever measured during the ...
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2answers
142 views

What new has come from the recent methane findings on Mars?

I was reading: https://www.cnet.com/news/nasas-curiosity-rover-makes-surprising-methane-gas-discovery-on-mars/ And, yes, I realize that cnet is not a good source of information, however it's more ...
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1answer
187 views

Where exactly on Mars was Curiosity when this image was taken?

The BGR article NASA’s Curiosity rover saw something flash on Mars, and people are freaking out is one of many nearly identical clickbait articles about a recent image that contains a bright spot. ...
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1answer
117 views

Will the Mars 2020 rover's sensitivity to methane be better than Curiosity's?

The New York Times article NASA Rover on Mars Detects Puff of Gas That Hints at Possibility of Life describes the newest detection of a "whiff" of methane on Mars. The article states that the level ...
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0answers
33 views

At the same temperature, what's the relation of speed of heat loss between Earth and Mars?

Mars has a thinner athmosphere than Earth. Let's say you have a similar shelter of the same volume and made of the same materials in Mars at -70 Celsius, and in Earth in some place in the Antarctica ...
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34 views

Shirtsleeves environment in Martian caves [duplicate]

Are there currently any places on Mars (that we know of) that are deep enough and warm enough that a human could survive with only an oxygen mask? Are there any caves, trenches, or valleys deep enough ...
5
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1answer
76 views

What, if any, effect does the Martian magnetic field have on dust storms?

Since we know most dust particles on Mars are magnetic, I was wondering if they might be affected by the Martian magnetic field. Can the Martian magnetic field have any effect on the spatial ...
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0answers
75 views

Funding for small astrobiology fieldwork project

I am a postdoctoral scholar who plans to conduct a small project at the MDRS, a Mars simulation volunteer project. The project will be to conduct DNA sequencing of soil samples using a handheld nano ...