Questions tagged [atmosphere]

Questions regarding an envelope of gasses surrounding a celestial body held in place by the body's gravity.

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509 views

What is the procedure when a spacesuit gets a tear in it? [duplicate]

What do you do if you are in space and you get a rip in your spacesuit other than getting right with God? What if you cannot get back to base in time?
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168 views

Space Station in atmosphere with continuous reboosting to preserve orbit

I recently watched the series Altered Carbon. In that series, they showed a floating space station called "Head in the Clouds". There is a blue sky here, even clouds. This would imply a height of &...
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What is the meaning of twelve months for climate at Gale Crater, Mars?

I noticed that Wikipedia lists the climate on Gale Crater per “month”: Source: Wikipedia. None of the sources listed contain the information included in the table. I find it particularly puzzling ...
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211 views

Smallest planet where human type life could evolve and survive?

Most exoplanets making the news are larger than Earth. I wonder about the smaller worlds, how small is too small? Reword to keep the question narrow enough to be answerable. When the Earth was ...
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Martian atmosphere's effect on radiation?

The atmosphere of Mars protects it's surface from micrometeorites. How significantly does the Martian atmosphere reduce radiation in comparison with, for example, the Moon's surface or open space?
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Is it possible to force atmosphere onto a non atmospheric planet?

If you had some way of injecting large masses of gas into a small planets gravitational field, would it form an atmosphere? You would have to pump it at an extreme rate but would it still work if the ...
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107 views

What was the exact nature of the observations of “solar flare activity” that delayed the launch of Vostok 5?

The interesting story of Vostok 5 recounted in Encyclopedia Astronautica's Vostok 5 (linked in comments below this answer) includes the following passage: Vostok 5 was originally planned to go for ...
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146 views

Orbital insertion by rotating shaft

Consider the following idea for inserting a human on the surface of the earth into orbit: In orbit, attach a long (~80km) rigid shaft to a large weight (presumably an asteroid) and set it spinning. ...
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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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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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How much CO₂ could the wind through a tunnel within the deposit near the south pole of Mars sublimate?

Within the CO₂ deposit near the south pole of Mars, according to this article 3 subunits have been found with one having the top CO₂ layer of about 300 meters thick covered by a water ice layer with a ...
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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 ...
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Faster alternative to travel to any location in the west

Suppose one needs to travel to Somalia from Indonesia(which are approximately at a distance of $4000$ miles from each other on the line of equator). To accomplish this task, I suggest the following ...
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174 views

How will Mars terraforming missions really work, how do pioneers like SpaceX plan on conquering Mars? [duplicate]

We know Mars is now dead in the water (or space), it is now merely an oversized rock hurtling through space, with a bit of atmosphere. I was reading up on terraforming the planet, and learned that ...
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395 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 ...
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550 views

Will Mars ever become breathable for humans?

There are some proposed methods like extracting oxygen from ice in polar caps getting it from the CO2 found in Mars' atmosphere or ... But let's say we finally find a feasible method to produce ...
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111 views

What exoplanet atmospheres might support life beside our nitrogen and oxygen atmosphere? [closed]

What exoplanet atmospheres might support life beside our nitrogen and oxygen atmosphere? Related question: Could an exoplanet atmosphere be very similar to our own, but contain some component toxic ...
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Designing Atmospheric Composition of a Fictional Gas Dwarf

I'm working to design a fictional artificially-engineered planet based on Venus (let's call it Cael) with an atmospheric layer/band that is effectively Earthlike, in terms of: Density (the following ...
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How to derive wind variation equation in the planetary rotating atmosphere

In this picture is the equation of wind variation on rotating earth atmosphere. Does anyone know how to get this equation ? what is the basic idea ? Thank you
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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 ...
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188 views

How would a body be stored in a dark hole in the moon?

How well would the human body stay preserved if it was frozen while pressurized and vacuum sealed before being placed in a crater on the Moon? Would the temperature be more reliably stable on the moon ...
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126 views

Are there “Space Jellyfish” in Florida? Would they be possible?

The Wikipedia article Space Jellyfish shows the image below with the caption: A California space jellyfish from 22 December 2017 I think that when other Q&A here have shown similar space ...
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142 views

Is there any reason other than lack of oxygen Tardigrades can't survive Mars?

If Cyanobacteria or Lichens can survive on Mars could other small organisms like the Tardigrade then survive & flourish among them? Due to the thicker atmosphere to be found the bottom of the ...
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Neural networks applied to micro satellites missions [closed]

I'm really interested in micro satellites, but I'm a beginner. So, for the year-end project of a course called "Neural networks" at University I want to do something related with this. I searched a ...
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133 views

How to waterproof a rover?

What changes would be needed to a late model rover to enable it to function under water? What would prevent a rover from functioning under water as is? related: https://astronomy.stackexchange.com/...
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Will the sinking of a nuclear reactor into the CO$_2$ deposit on Mars cause a huge explosion? [closed]

Within the CO$_2$ deposit near the south pole of Mars, according to this article 3 subunits have been found with one having a top CO$_2$ layer of about 300 meters thick covered by a water ice layer ...
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Does a credible Kármán plane reach escape velocity within 1 minute or does it follow the curvature of the Earth? [duplicate]

Edit: This question is no duplicate because here the dropping of the atmospheric density together with the horizontal line, play an important role. Furthermore none of the answers and question ...
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What pushes back on rockets? [closed]

Discussion: I have removed the parts of the question regarding landing and the conic nozzle. Adding in those issues makes the question too broad. No, it makes the question meaningful. It's an ...