Questions tagged [mars]

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

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3answers
153 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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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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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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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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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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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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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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230 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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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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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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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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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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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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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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152 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 ...
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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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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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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 ...
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1answer
113 views

How are martian dust devil maps made?

The Gizmodo article A Martian Dust Devil Swept Right Over NASA’s InSight Lander says: What’s unique about this most recent event, however, is that InSight was able to gather other forms of evidence ...
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What are the biological effects of a toe-to-head force gradient upon a human over the long term?

This question pertains to the notion of constructing rotating spacecraft and habs for human use in space in order to mitigate the effects of microgravity. Such craft have been a staple of many sci-fi ...
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1answer
169 views

How many motors on the new Mars 2020 rover? (and other questions)

With so many different motors on the new Mars 2020 rover, I'd like to ask if each motor programmed to operate independently or can the different motors operate in sync with each other? Also, as a ...
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1answer
362 views

Why were Spirit and Opportunity separate launches?

In reading this question (Why A=2 and B=1 in the call signs for Spirit and Opportunity?), it prompted me to wonder why Mars probes Spirit and Opportunity were launched separately, even though their ...
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216 views

Can we get to Mars today using current rockets/technology?

I was wondering if, using the rockets we have today (I'm guessing the most likely candidate is the Falcon Heavy), we could send at least 1 human to Mars. For arguments sake, let's ignore the fact it ...
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Could Martian soil be used as material for a 3d metal printer?

I know this sounds like a 3d printing question, but it is more space oriented so bear with me. My reasoning for this post is that the Martian soil is comprised mainly of iron oxide, which gives it ...
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322 views

Does Mars have badlands?

This excellent answer addresses the amazing 3D structures shown in the image below: The terrain examples show some striking similarities to what is referred to in the United States as "Badlands" - ...
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How are the most sensitive seismometers on Mars protected from the most powerful jackhammer on Mars just a few feet away?

In the image below we are supposed to be looking at the pretty clouds, but all I see is an incredibly sensitive set of seismometers sitting right next to a jackhammer that will slowly drive a metal ...
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1answer
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Images of Mars Phoenix Lander showing what's happened after more cycles of winter ice build-up?

The Mars Phoenix Lander's End of Mission is an interesting story. It was left in a state such that had it survived the Mars winter of 2008, it could potentially be contacted again in 2010. The Phoenix ...
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837 views

How can a hefty sand storm happen in a thin atmosphere like Martian?

As perceived, sand storms on Mars are quite hefty. But how is that possible in such a thin atmosphere like Martian?
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Can a semipermeable greenhouse be used to extract CO2 from the Martian atmosphere and help provide oxygen to a colony without using a pump?

When doing an experiment on growing plants in sealed plastic bottles, I learned that many plastics, such as PET used for soft drinks bottles, are more permeable to CO2 than to N2 or O2 (see table 2 of ...
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268 views

Are there any possible methods for keeping surface water on mars?

I've been reading this wikipedia article on terraforming mars. One of the major issues with terraforming mars is essential molecules and elements escaping the planet. There have been several ...
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219 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 ...
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72 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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How many spy satellites could be destroyed before the debris field would be too massive to launch moon or mars manned missions?

Obviously this is very statistical. Basically I'm looking for an order of magnitude. One geostationary satellite would cause a pinball effect or would it be more like 10 satellites? I'm concerned ...
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Fast spining solar cells to clear Martian dust possible?

I've seen a fast spinning glass wheel used in front of a camera to clear away water, dust or ice. Could Solar panels be made circular and spin to clear dust off of them in the same way may? As ...
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203 views

Could electricity be generated from a Martian dust storm?

This helicopter is producing static electricity from the blades moving through the dusty air. Along with the electricity provided by wind generators could additional power be created this way from ...
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553 views

Could the BFR Tanker be used as an artificial gravity counterweight for interplanetary travel?

An alternative storyline to the Mars transport architecture: Tankers refuel starship, last Tanker gets mounted on the Starship for the Mars orbital injection burn, once on a Martian trajectory tanker ...
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220 views

Could an Igloo work on Mars?

Could ice make a good habitat like an igloo for colonists or as cold storage for fuel? Could the cavern be sealed and then carbon dioxide melted to create pressure inside the cavern to grow plants or ...
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1answer
81 views

Puzzler: help understanding these amazing Curiosity eclipse GIFs

Starting from Curiosity Observes Sunset Eclipse: Sol 2358 I found three images in the sequence PIA23133, PIA23134, and PIA23135 which I thought would mean (but don't know for sure) that they are ...
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Would a terraformed Martian athmosphere even persist? [duplicate]

So I saw a question here mentioning that omnipresent idea of terraforming mars by somehow giving it more atmosphere (here it was melting/evaporating the polar ice caps). My problem with that is: ...
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2answers
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Can a rocket refuel on Mars from water?

Can a rocket run only on hydrogen and oxygen? Could a rocket, rover, and electrolysis machine be sent to either of Mars' poles to excavate ice to make hydrogen and oxygen to refuel an unmanned rocket? ...
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1answer
199 views

How would this two-stage Mars Ascent Vehicle work? Where do you sit?

This curious answer shows an image of a liquid-fueled Mars Ascent Vehicle with a sign in front that only says Two Stage Mars Ascent Vehicle Question: Is there some NASA program associated with it ...
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1answer
116 views

Is there mineral nitrogen on Martian surface? [closed]

I am aware of the atmospheric composition and pressure. I am looking for research papers which state the mineral content of Martian soil.
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1answer
83 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?
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1answer
247 views

Do Mars rovers have irises? How do they safely look at the Sun?

This excellent answer by @MarkAdler to the question Opportunity's last tau was 10.8; what does that mean and how is tau defined and measured? explains that Curiosity uses its PanCam to image the Sun's ...
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296 views

Maximum height for a Mars Balloon?

The altitude record for an unmanned balloon is 53.0 kilometers. wikipedia If we use this Earth based record for an estimate of the maximum possible height of a balloon started from Mars surface, ...
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1answer
207 views

How high could a weather balloon be used on Mars without rupturing? [duplicate]

What is the maximum height could a weather balloon achieve on Mars without rupturing? Assume that the balloon is adapted for Mars' atmosphere and gravity from standard high altitude balloons used on ...
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317 views

Could a fat rocket be used on Mars?

Since Mars' atmosphere is around 2% the density of Earth's then could a much wider rocket achieve orbit? Could the rocket be in the shape of a capsule or an optimal shape for reentry on Earth?
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1answer
107 views

Would high altitude native populations make better astronauts for a Mars mission?

High altitude populations in Tibet, the Andes, and Ethiopia have genetic adaptations that allow them to better handle low oxygen levels. They are also used to colder and drier climates. And lastly ...
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132 views

Fuel vs food on the trip to Mars?

How much food for each person is need and fuel per various engine to go to Mars on the current 9-month trip there then 3 months on Mars and the 9 months back? Can time be saved on the trip to and from ...
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194 views

Instead of approaching Mars from behind can we approach Mars from the front of its orbital path? [closed]

Nine months is what google maps said to get to Mars. I would like to know if fuel was no expense how long could we get to Mars other than the method below? Is the 9 months and the method just what our ...

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