Questions tagged [venus]
Questions regarding the second planet from the Sun.
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Would not getting asteroid 2013 ND$_1$$_5$ into a polar orbit be the easiest way for it to become a moon of Venus?
Notice:
Although this question is similar to this one, it is different because asteroid 2012 XE$_1$$_3$$_3$ has a transitional path between Venus's Lagrangian points L5 point and L3 point, whereas ...
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Could asteroid 2012 XE$_1$$_3$$_3$ become a moon of Venus with the aid of rocket engines?
2012 XE$_1$$_3$$_3$ is an asteroid, classified as near-Earth object of the Aten group that is a temporary co-orbital of Venus.
It is following a transitional path between Venus's Lagrangian points L$...
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Venus vs Mars for colonization
Why is Mars getting so much attention vs Venus, which to me seems like a much more attractive option, in regards to habitability.
I've read that the upper atmosphere of Venus has the most Earth-like ...
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Is really almost all the water in the atmosphere of Venus above the clouds?
In this question about the amount of sulfuric acid in the atmosphere of Venus it is calculated that the amount of water in it's atmosphere is $9.6 \times 10^{15} \text{ kg }$ H$_2$O.
But the ...
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Why not bring life to Venus along with the next exploring mission?
Why not bring cyanobacteria and fertilizer to the atmosphere of Venus to improve conditions for life there by producing oxygen ?
Planetary protection could be a reason.
According to Wikipedia:
...
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Could we see the surface of Venus after the explosion of a H-bomb in its atmosphere?
The dense atmosphere of Venus is mainly composed of carbon dioxide and nitrogen, with clouds made of sulfuric acid droplets, which make optical observation of the surface impossible.
As can be seen ...
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Are the mountains of Venus of any help for us to explore the surface?
The circular orbit and small axial tilt results in no seasons, coupled with the well-known strong greenhouse that makes nights just as hot as days.
As pressure gets lower by height, so does ...
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How to calculate mass of fuel for Venus Orbiter
I'm working on a hypothetical constellation of orbiters at Venus for a school project, and I am currently trying to figure out how much fuel I need in the transfer stage. I have already calculated ...
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Speculation. Will this "turning-co2-into-O2" zeppelin work in Venus? [closed]
Background: Me and a friend are trying to "colonize" Mars and Venus. He has Mars, and I have to "colonize" Venus. So, my intention was to do a slow terraform by creating zeppelins that convert CO2 ...
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Could there be caves/underground tunnels in Venus?
If so, would they have the same pressure/temperature than of the surface of Venus? How could we "scan" the surface to gather that kind of information?
For reference, there are several images of lava ...
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Could metal sulfates stay in the sulfuric acid layer of Venus?
For cyanobacteria metal ions like K+, Mg+ and other essential nutrients like phosphorus are vital for growing and to expand.
So they could only thrive in the clouds of Venus if at least metal ions ...
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Why not simulate certain regions of the atmosphere of Venus?
Many people would like to know if any form of life could survive anywhere in the atmosphere of Venus.
Researchers have simulated conditions on Mars and found that after a month some cyanobacteria ...
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What is the typical size of the sulfuric acid droplets in the atmosphere of Venus?
According to Wikipedia:
Venusian clouds are thick and are composed mainly (75-96%) of sulfuric acid droplets. These clouds obscure the surface of Venus from optical imaging, and reflect about 75% ...
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When will we send floating probes to Venus?
Recent plans on human missions to Mars have sparked many discussions, one of which is about if we should colonize Venusian upper atmosphere with Zeppelin like floating ships and cities first.
NASA ...
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Will thinning the atmosphere of Venus make its surface habitable?
I have no idea about this thing, but since Mars is on the table, why not Venus? It has comparatively better gravity and a big enough surface. Also, maybe we can harvest its atmosphere and use it ...
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Are there any updates / follow ups on the HAVOC Venus exploration concept?
The HAVOC concept for exploring Venus with airships has been made public almost three years ago now, but the scientific publication seems to never have been cited, neither am I aware of any official ...
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Why is the atmospheric pressure on Venus so high?
The pressure on Venus is 1334 PSI (9.1976 MPa) or 92 times the pressure at sea level on Earth, which is 14.5 PSI (99.9734 kPa). Now, in our oceans the pressure increases by 14.5 PSI (99.9734 kPa) ...
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Mechanical computing hardware for a future Venusian rover? How does it work?
I don't know why Gizmodo says NASA's Latest Venus Probe Concept Looks Like a Tim Burton Creation, because it looks far more like a Theo Jansen creation! Compare videos below as well.
I can understand ...
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Why do radar maps of the surface of Venus have missing slices?
The visually opaque clouds of Venus still pass radio and some microwaves, and so powerful radar signals can be used to map the surface. This is probably done using some kind of delay-Doppler technique,...
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Does Venus have a north star or south star?
I am trying to figure out how you would navigate on Venus. On Earth you can use Polaris as a North Star to find north. Would there be a star on the Venus sky which could function as either a north ...
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Archimedean braking for low density Venus lander + subsidiary question
Subsidiary question: Imagine a sphere 10cm in diameter in low venusian orbit.
Slow it down a little in order to deorbit it. What's the density of the sphere, in order to touch the ground at 0 vertical ...
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Is bypassing LEO more efficient when launching to Venus or Mars?
According to the table in the Wikipedia article on Hohmann transfer orbits, when traveling to Venus or Mars, the Δv to enter a Hohmann transfer orbit from Earth's orbit is less than the Δv from LEO:
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Potential high temperature power sources for a Venus lander
What power sources are viable on a 'long term' Venus lander?
An RTG relies on a temperature differential, and is not likely to be doable with a 457C 'cold side'.
Based on this answer there is not ...
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Is there likely to be life in Venus's upper atmosphere?
From what I understand, Venus's upper atmosphere is much more habitable than its surface, with a temperature and pressure that humans could tolerate. However, lack of oxygen and the presence of ...
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Would it be possible to "ride the wave" on Venus?
Update: Newly published paper in Nature Geoscience Atmospheric mountain wave generation on Venus and its influence on the solid planet’s rotation rate has open-access links in Science News, ...
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How would people measure time on Venus?
On earth we can divide our day into 24 hours, and 365 days in the year. I am trying to imagine how people living on airships above the cloud-tops would think about time on Venus given that a single ...
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How would you navigate an airship on Venus?
Since there is no magnetic field compass is out. No GPS satellites either. I guess some old school methods could be used but I see some potential problems.
Assume we are over the cloud tops, can we ...
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What would a Venus sky look like above the cloud tops night and day?
I know it will likely be a yellow haze at the surface level, but I've seen little info about what a Venus sky looks like above the cloud tops or in the midsts of them.
Will the sky be blue like on ...
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Can engineered comet impacts kickstart Venus's magnetic field?
Would impacting the planet with comets at the right angle (tangent) give it enough spin to turn its iron core, kickstarting a magnetic field while bringing enough water to it to reduce the amount of ...
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Would it be possible to power a Venus lander using a temperature differential?
Venus has an average surface temperature of 735K. Would it be possible to harness this extreme temperature and use it to generate electricity? After all, that's the principle a radioisotope ...
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What is this white dot and strange line in SOHO image?
In the SOHO images for today, there was a white dot at the bottom right of the image. There is also a strange white line parallel to the top and bottom of the image that crosses most of the image. ...
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Terraforming of Venus [duplicate]
Everyone is constantly focusing on the terraforming of Mars. However, how could one terraform Venus?
The most obvious problems are the high pressure CO2 atmosphere, sulphuric rain, lack of water, lack ...
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Venera mission image data format
I often work with the programmatic manipulation of images and 3d environments in my work at an engineering firm. Out of pure curiosity I was wondering about the Venera mission data format. I read that ...
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Why was Venus rather than Mars targeted for the first interplanetary landings?
This is a question about early planetary missions. It looks like there was only one early (unsuccessful) landing mission to Mars and that subsequently Venus became the target for interplanetary ...
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Should we expect the surface rocks of Venus to be oxide poor?
My thinking is that in an atmosphere rich in hot sulfuric acid they couldn't stand a chance. Although I am unsure of what exactly would be going on chemically at the interface between the venerean ...
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What are the problems stopping us from making a "cloud-city" on Venus? [closed]
Isn't it better to colonize on Venus than Mars? Due to similar gravity and the atmosphere blocking a lot of the radiation?
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How long would a blimp last in Venusian atmosphere at an altitude of 65 km?
It would be the same blimp on Earth, except with some modifications like anti-corrosion coating. The blimp will use helium as the gas to keep it aloft. Would it last long enough to be useful?
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How to produce oxygen out of Venusian atmosphere's carbon dioxide?
What are the possible methods of in-situ extraction of oxygen from the atmosphere of Venus, which is mostly carbon dioxide?
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How does Venus' thick atmosphere survive against the solar wind?
The traditional explanation for rocky inner planets and large gaseous outer planets is that the outer planets are farther from the Sun, and therefore can hold onto large atmospheres that don't get ...
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Does Venus have doldrums or horse latitudes (latitudes with lower winds)?
Because of all the heat fueling convection cells, Venus has some brisk winds especially in the upper atmosphere (up to 370 km/h).
I realize the winds are quite slow at the surface, but are there any ...
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Could there be a phosphorus cycle on Venus?
Most of what I read says there is not any phosphorus on Venus, which I take to mean none in the atmosphere or none detected. I mean, it gets hit by iron-nickel meteorites and probably has some apatite ...
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What is the problem with pressure?
Among other reasons, the high pressure of Venus and the gas giants atmospheres are often stated as one of the major problems for an unmanned lander. They say the pressure will "crush" the probe. Why ...
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Are there currently any plans for a Venus lander?
I am interested in what the surface of Venus looks like in true color, but have discovered that true color images of Venusian surface are rare, and am hoping that a lander mission is planned to take ...
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Maximum survivable atmospheric pressure
Given a similar mix of gases to those in our Earth's atmosphere, what is the upper limit of survivable atmospheric pressure for a human?
Could a human survive higher pressures with a gas mix unlike ...
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Would it be feasible to use wind turbines on Venus?
It has been proposed on Earth to use airborne wind turbines, anchored to the ground and flying at high altitudes where wind is strong and consistent.
On Venus, I would immediately say that anchoring ...
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Could airships be used to construct large structures in the air?
This is relevant for Venus colonization since that considers floating cities. Since one can't use cranes, I was thinking perhaps helicopters or airships could be used to move construction pieces ...
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Is utilizing the high temperature for chemical reactions on Venus a feasible way of generating electricity?
I assume utilizing habitats floating high in the Venus atmosphere as described by Geoffrey Landis. So weight, size etc is a constraint, and we will not be operating at the surface with the crushing ...
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Is the hybrid sulfur cycle a good way of making hydrogen and oxygen on Venus?
Assuming we collect sulfuric acid from Venus clouds using some sort of airship, what would be the best way of turning this into hydrogen and oxygen? I came across something called the hybrid sulfur ...
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What are the difference in energy costs for entering Venus vs Mars vs the Earth?
From what I understand you can't use aerobraking on Mars for landing as the atmosphere is too thin. From what I understand Mars is quite problematic because the atmosphere is too thin to benefit from ...
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Are there any benefits on Venus compared to Earth with respect to reusing launch vehicles?
My assumptions around building up infrastructure for dealing with space launches from Venus assumes colonization based on the principles outlined by Geoffrey A. Landis of NASA in paper Colonization of ...
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