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Questions tagged [dust]

Questions regarding small, clustered pieces of dirt/rock, and it's effect on space exploration.

15
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2answers
2k views

Speed to maneuver with flaps and ailerons in interstellar dust

I know the interstellar space is not empty. It has (among micrometeorites and gas clouds) interstellar dust. And the effect of the dust is more noticeable if the speed of the starship increases (we ...
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0answers
52 views

Would the atmosphere of Mars become less dusty if the ice deposit in Utopia Planitia could be uncovered?

In 2016 a large ice deposit has been 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 80 ...
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0answers
43 views

How bright would electrostatically suspended dust above the lunar surface be? Has it ever been measured?

@TomSpilker's answer mentions the potential effect of dust from the lunar regolith being slightly electrostatically levitated by the charge on the lunar surface induced by the solar wind on telescopic ...
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2answers
1k views

How exactly did the floor of an Apollo LM look like after EVA(s)? Seeking photo!

Almost five years ago I posted a question entitled "How was dust-mitigation addressed during the Apollo program?". While the question was answered rather comprehensively, it left me even more curious. ...
4
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2answers
523 views

Did a particle hit the second stage of the Falcon Heavy in this video from the Starman stream?

The silver material surrounding the base of the Falcon Heavy second-stage engine jerks suddenly in this video from the Starman stream at 4:06:32 Is this due to a particle impact?
4
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1answer
127 views

How thick is the dust layer on Phobos?

How thick is the dust layer on Phobos? Is it pretty much constant or are there significant extremes?
8
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3answers
779 views

Why did moon dust not cause problems on Apollo during the return flight from the Moon?

The Apollo Command Module and the LEM were built in clean rooms free of dust on earth and yet (knowing that they didn't have air locks on either module) the astronauts came in directly from the moon ...
7
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1answer
271 views

When Chang'e-3 landed on the moon, did LADEE notice?

The Lunar Atmosphere and Dust Environment Explorer (LADEE) entered lunar orbit 2013-10-06, and Chang'e 3 landed 69 days later producing dust and gas on 2013-12-14. These were both quite interesting ...
11
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1answer
904 views

How will the ExoMARS Rover keep it's solar panels dust-free and collecting maximum power?

update: Current events makes this question even more poignant sols 5183 to 5189, Aug. 23, 2018 - Aug. 29, 2018: Team Continues to Listen for Opportunity Curiosity selfie has been released just a few ...
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1answer
78 views

Where to read about early work in the detection of dust impacts on solar observing spacecraft?

I've read in a side note included in this nice answer that : Fun Side Note: The FIELDS instrument is planning to look for dust by detecting the electric field pulses resulting from the plasma ...
2
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1answer
187 views

Is a system to remove the charged Mars dust from settlers' suits feasible?

In the question How strong is the electric charge capacity of Martian dust storms? the possibility of electrically-charged dust and its inconvenience or danger to Mars explorers is described. The ...
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2answers
753 views

Are Martian winds as strong as portrayed in “The Martian”?

I read Andy Weir's "The Martian" and saw the movie, which is supposed to be realistic science fiction. And I immediately saw a couple of huge flaws, one of which I'd like to tackle with this question: ...
8
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1answer
312 views

What are the known historic global and regional dust storms on Mars?

What is the actual calendar of observed global dust storms on Mars? And if available, any data about regional dust storms' dates, duration and coverage. I find online information about global Martian ...
27
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5answers
6k views

Is there any evidence that NASA was worried about deep lunar dust?

It was once theorized that the moon might have deep oceans of dust, potentially a problem for any craft landing on its surface. I've heard that NASA was concerned about this possibility in the early ...
3
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1answer
885 views

How did they sweep dust on the moon from inside the Apollo Lunar Lander?

I noticed from this answer the phrase: by sweeping all the dust we could find How did they sweep dust in the LM? And where did they sweep it to?
6
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2answers
418 views

Could you “fire hose wash” a space suit on the Moon or Mars?

There are some concerns about Lunar dust attaching to the space suits during the Apollo missions. So Suitports are being developed. On Earth, cars get pretty dirty too, but a car wash solves that. ...
3
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2answers
685 views

“Lunar vacuum cleaner”: Design considerations for regolith dust suction system in exospheric conditions

Background: While watching SSERVI Director’s Seminar Series: RIS4E (Science and Exploration of the Moon, Near Earth Asteroids, the Moons of Mars enabled by the Remote In Situ and Synchrotron Studies ...
8
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0answers
498 views

How strong is the electric charge capacity of Martian dust storms?

In my answer to What would it feel like to be in a Martian dust storm? I assert that Martian dust storms would be best avoided, and as one of the reasons (besides carrying corrosive chemicals like ...
13
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2answers
1k views

Do solar panels on satellites gather dust and need cleaning?

As a follow-up to Does cosmic dust pose a problem for long-term satellites, telescopes and probes?, assuming satellite's long duration stay in Earth's orbit – let's for the sake of argument assume a ...
7
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2answers
267 views

Will kicked-up “dust” be a problem for Rosetta and lander Philae?

I see that escape velocity on 67P/Churyumov–Gerasimenko is 0.64 m/s. (Contrast Earth's 11,186 m/s.) With such light gravity I imagine any material kicked up would take hours to land, or orbit ...
3
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2answers
325 views

Is vibration useful in shaking off Mars dust?

I had just read this article about how they were trying to figure out how to make a vibrating superconductor move in 1 direction, for propulsion, but it didn't sound too promising. So I thought of ...
7
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1answer
697 views

Curiosity: Rockets kick up more dust than a sandstorm?

I was reading the NASA page about Curiosity's crazy landing scheme, and I ran across this sentence: With a payload this size, the rockets could kick up enough dust to compromise the rover and its ...
33
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2answers
6k views

What would it feel like to be in a Martian dust storm?

In a recent question, 'Could an EVA Suit meant for Mars be used for EVA on another celestial, or vice-versa?', there was some discussion in the comments about the effects of a dust storm on Mars ...
11
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2answers
3k views

How does the Curiosity rover survive dust storms on Mars?

According to the answers to this question, a dust storm on Mars can last for many days. Dust is a serious problem for mechanical joints if they use lubrication, because it may stick to the lubricant ...
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2answers
6k views

How can Mars have dust storms with such a thin atmosphere?

Mars, as I understand, has a very thin atmosphere. However, it still has weather like this: What causes the thin atmosphere to move fast enough to cause such a monster wave of dust?
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1answer
2k views

How was dust-mitigation addressed during the Apollo program?

Dust mitigation in the context of manned landings is now a rather vital topic of research and testing, but back in the days of Apollo it was a fairly new problem. 'Dusty' Gene Cernan inside the LM ...
14
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2answers
2k views

How hard is the Lunar surface?

The lunar surface visible to us is mostly regolith - space dust, asteroid remains, and what-not. The true lunar surface is below - at depths ranging from a few inches to a few metres. Given that ...
30
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5answers
13k views

Why didn't the Apollo 11 lander blow the dust away? (or why does it look like it didn't)

In this picture, we can see the footprints near the Apollo 11 lander. Shouldn't the dust have been blown away when Apollo 11 landed?