Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [mars]

Questions about the science or exploration of the planet Mars.

5
votes
1answer
28 views

What would the human gait look like on Mars?

Is there an approximation of what a human would look like walking on Mars? Would it be closer to how the astronauts walked on the moon or the way we walk on the Earth? With the gravitational ...
2
votes
1answer
98 views

Why is a corner of InSight's selfie cropped like this?

A couple days ago, InSight took a selfie from the surface of Mars: Image credit: NASA/JPL-Caltech Most articles about it note that the photo is a composite image, which you can figure out by looking ...
2
votes
1answer
105 views

Manned entry to Mars

Did Insight have a ballistic entry? If so, does NASA plan a ballistic or skip-glide entry for manned missions to Mars?
2
votes
1answer
57 views

Hypersonic Inflatable Aerodynamic Decelerator entry to Mars' atmosphere

Is it known whether or not a Hypersonic Inflatable Aerodynamic Decelerator inflation and entry into Mars' atmosphere would produce more violent vibrations and lateral movements than was experienced by ...
7
votes
1answer
122 views

Why do InSight's solar panels have tall vertical ridges between segments - will these trap dust?

The NASA JPL News item NASA's InSight Takes Its First Selfie provides a link to the high resolution image PIA22876. Below I've cropped out the West solar panel array, which shows surprisingly tall ...
14
votes
2answers
2k views

Is the Curiosity rover equipped with motion detectors?

On Earth, wild life cameras are sometimes equipped with motion detectors to record rare species automatically. Could they not be applied in the case of Mars too ? Is Curiosity not equipped with ...
4
votes
0answers
85 views

Why did the MarCO space probes use fire extinguishant as their propellant?

In many news articles, it's mentioned that the MarCO spacecraft, launched with InSight, used fire extinguishant as the propellant for its cold gas thrusters. I originally assumed that this was ...
2
votes
1answer
53 views

What are the advantages to sending a person vs robotics to Mars?

Why is it needed to send a person to Mars one day when we have Rovers? What not obvious advantages do humans have in space exploration over Robotics and vise versa?
7
votes
1answer
2k views

Why not a “live” visual connection with Curiosity on Mars all the time?

Note: Got the idea for this question by @uhoh's question: "Has anything close to video ("live" or otherwise) been shot in space from beyond the Moon ? To have the "feeling" of a "live" connection ...
1
vote
0answers
46 views

Why the big difference between NASA and ESA/Roscosmos in evaluating the Oxia Planum landing site?

In november 2018 ESA announced that the Oxia Planum region is favoured for the ExoMars surface mission. The figure above from this answer about the 21 potential landing sites for the Mars 2020 ...
0
votes
2answers
174 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, ...
4
votes
0answers
134 views

Is there any reason Cyanobacteria or Lichens can't survive on Mars?

According to this article "Mars atmosphere is supersaturated with water" & according to answers to this physics stack exchange question conditions do exist on the surface of Mars where fluid water ...
2
votes
1answer
76 views

How many hours each day is Mars reachable by 2 of the 3 DSN complexes?

NASA communicates with spacecraft beyond Earth orbit using the Deep Space Network, which has three complexes: Canberra, Australia; Goldstone, California; and Madrid, Spain. There are many spacecraft ...
7
votes
2answers
170 views

What does a NASA employee see on their monitor when a robot lands on Mars?

I have seen that many NASA employees (see the picture) were present in the control room when InSight landed on Mars on November 26, 2018. What I did not see is what exactly those people saw on their ...
3
votes
0answers
119 views

What's the deepest a trench could theoretically be dug on Mars?

Given the physical characteristics of Mars (the crusts thickness, it's composition, gravity, etc) how deep a trench (that could be expected to continue to exist indefinitely, or rather, for periods of ...
1
vote
1answer
61 views

How feasible is wind energy generation on Mars? [duplicate]

Spacecrafts and rovers tend to have dust settled on their panel which leads to reduced power generation. If wind turbines could power the instruments, then the seasonality of solar power generation ...
2
votes
0answers
31 views

How old is the oldest water ice in Mars' polar caps?

Mars has permanent water ice caps at both poles, which are seasonally covered by carbon dioxide ice. What knowledge do we have regarding the age of the oldest ice in those caps?
2
votes
2answers
140 views

Is there a live feed from InSight anywhere?

OK so I know it's not "live" given the distances involved (so you can put your pedant hat away), but is there a feed where we can see the images & video from it more or less at the same time as ...
6
votes
1answer
429 views

How deep a valley or trench would be needed on Mars to provide the same atmospheric pressure as 6 km above sea level on Earth?

Atmospheric pressure increases the deeper you go & the highest growing plants on Earth have been found at a height of 6 km so how deep a trench would we need on Mars to provide similar air ...
2
votes
1answer
64 views

Has the HP$^3$ on the Insight lander actually a probe to detect water and ice in the subsurface of Mars?

The Heat Flow and Physical Properties Package (HP$^3$) is a science instrument onboard the Insight lander that features a self-penetrating probe to determine how heat flows inside Mars. Nicknamed "the ...
2
votes
0answers
30 views

Mars “bus” shuttle between Earth and Mars [duplicate]

I've had no thoughts on a Mars mission for some time, but after watching the documentary on Mars One (which is think is not an option specifically to go to Mars and not return), I began going through ...
4
votes
2answers
111 views

Why are there no methane detectors with “the mole” of the Insight lander?

A possible geophysical source of methane on Mars could be ancient methane trapped in clathrate hydrates in the subsurface that may be released occasionally. In a not secured (!) article of ESA about ...
17
votes
1answer
2k views

Brushing clean a Mars lander's solar panels

A comment by SF. regarding the InSight Mars lander caught my attention: I really, really wonder why they didn't just include a small compartment with a duster brush grippable by the robotic arm. ...
9
votes
2answers
269 views

Could InSight lift off and move somewhere else?

InSight used its built-in thrusters for the final stretch of the Entry, Descent and Landing, and the thrusters seem to still be attached. Would it have been at all possible for InSight to lift off ...
4
votes
0answers
100 views

How Mars rovers would sleep through the night on Mars?

With reference to Mark Adler's response regarding to Curiosity rover (MSL) on this great & interesting question, this statement strongly caught my attention: The rovers are designed to be ...
3
votes
1answer
104 views

Has NASA thought about a hub on Mars, where rovers could branch out of?

When watching the insight landing I saw this map: Now all these missions had to have their own power supply(and more). Why did NASA not send up a kind of energy hub that is fixed where multiple ...
9
votes
2answers
3k views

Why is so much of InSight visible in this image?

It seems really strange to me that there is so little visible of the surface in this image, it mostly appears to be the deck of InSight. Why is so little visible?
22
votes
4answers
6k views

Is Quantum Entanglement technology possible for interplanetary communication in future to achieve low real-time latency?

There is a small debate over the comment session in NASA Lands InSight on Mars video uploaded by JPL. The 1 minute and a half video is about the essential part of InSight's EDL event cropped out from ...
1
vote
0answers
78 views

How large are the advantages to building a Martian spaceport on Olympus Mons? What are the disadvantages?

There are several questions and answers here about a potential advantage to launching from substantially higher altitudes, usually the answers are that while indeed there is some advantage, it is ...
2
votes
1answer
79 views

Why does the SEIS require a bellows type wind cover?

The Seismic Experiment for Interior Structure probe onboard the Insight lander is meant to measure subtle seismic events on Martian surface. In order to reduce the noise induced by wind, a protective ...
9
votes
3answers
1k views

Won't the heat sensor probe interfere with the seismometer?

I've read that the Mars InSight Seismometer will be deployed before the HP3 probe. Won't the digging interfere with the seismometer? Or the shock produced will be small enough to be dissipated by the ...
20
votes
3answers
5k views

Can Curiosity pay InSight a visit?

InSight landed “just” 600 kilometers from Curiosity’s landing site. Can Curiosity make its way there for a rendezvous? Are there any plans for this?
2
votes
0answers
118 views

How many sundials on Mars?

According to https://www.seis-insight.eu/en/public-2/seis-instrument/rweb Sundial Around the handle is a small sundial, which enables geophysicists to estimate the azimuth— i.e. the ...
-5
votes
3answers
2k views

Why does the Mars InSight Lander look wet like a cardboard box that came in contact with water? [closed]

NASA has just released a photo showing a part of the InSight Mars lander wet, like a cardboard box that came in contact with water (see the picture). What is that liquid? The Instrument Deployment ...
5
votes
2answers
153 views

Is it appropriate to use the term “geology” for Martian studies?

Jargons like geology, geophysics, geothermal has its origin in and has strong connections with Earth. Other jargons like the closet point and farthest point of an orbit to a heavenly body get ...
1
vote
0answers
43 views

Why are the heat sensor probes in HP3 probe spaced with reducing gap with depth?

The HP3 probe used for studying the geothermal features of Martian surface, hammers upto 5m deep and inserts a tether lined with heat sensor probes. This link shared earlier by @uhoh, is an ...
3
votes
2answers
514 views

Why was MarCO-B CubeSats flying away after InSight landed?

Farewell to Mars November 26, 2018 MarCO-B, one of the experimental Mars Cube One (MarCO) CubeSats, took this image of Mars from about 4,700 miles (6,000 kilometers) away during its flyby of ...
0
votes
1answer
168 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?
4
votes
1answer
469 views

What is the history behind having peanuts in mission control during critical missions?

The InSight mission livestream showed a jar of peanuts with what appears to be the MarCO logo. Why is was this a significant shot in the livestream? Is there history behind this?
11
votes
3answers
2k views

What will become of the two cubesats deployed as part of the Insight mission?

So as part of the Insight mission, two Cubesats were also launched to relay data during landing (so data can be obtained if something goes wrong) What becomes of these satellites once their primary ...
35
votes
3answers
6k views

Why was it necessary to program InSight with an ability to land in dust storms?

If the entire event of EDL (Entry - Descent - Landing) is going to take only 7 minutes and if the command to begin could be signalled based on ground weather conditions, why was it necessary to take ...
5
votes
1answer
66 views

Is the payload HP3, onboard the InSight a single use instrument?

InSight's HP3 probe is meant to drill deep into Martian soil. And the depth of reach is determined by whether there is a rocky layer underneath or not. If it's loose soil all the way down, merrier it ...
1
vote
0answers
54 views

Long term survival at Tranquility base? [closed]

What are the current estimates for the likelihood for a human to survive one year on a true Moon-base (first) vs a Mars-base (first), and what role are such estimates playing in NASA's decision to ...
16
votes
3answers
4k views

Could “live” video be transmitted from Mars?

With the approach of InSight to Mars today, and the two cubesats watching it, much is being made about seeing "Live Video" from the cubesats. I'm pretty sure that simply can't happen, but I'm ...
13
votes
3answers
2k views

What happens to Insight's parachute?

All of the animations I see show the heat shield detaching and falling to the ground, then Insight detaching and landing. There is no information about what happens with the upper part of the heat ...
4
votes
1answer
90 views

How do Mars spacecraft control attitude on final descent and landing?

When I watch videos of probes landing on Mars after cutting the parachutes off, they show the lander doing final orientation adjustments before touching down. The engines don't seem to have a ...
-1
votes
1answer
55 views

Can carbon dioxide be distilled from lighter air this way?

Could simple air compressor contain carbon dioxide saturated air in a tank refrigerated to solidify the $CO_2$ at one end while at the same time releasing the pressured clean air at trapping the ...
2
votes
0answers
46 views

How was InSight's vertical seismometer (accelerometer) tested in Earth's stronger gravity?

The BBC article InSight Diary: The silence of space tells an interesting story and has an interesting audio recording of InSight's seismometer signals sped up to audio frequency, made while in ...
7
votes
3answers
963 views

Why didn't NASA use the “Sky Crane” method for landing the InSight mission on Mars?

The "Sky Crane" was able to land Curiosity on Mars which weighs about 900 kg. The InSight lander weighs about 358 kg. Why was a new landing method designed, instead of re-using all components of a ...
4
votes
2answers
91 views

How does a Mars lander reach a chosen landing site?

I see lots of questions how landing sites are chosen, but none so far how these landing sites are reached. It already looks like magic how the target planet can be reached at all, but when are ...