Questions tagged [atmosphere]
Questions regarding an envelope of gasses surrounding a celestial body held in place by the body's gravity.
333 questions
5votes
2answers
984views
How much decibels of noise would a person hear when ingenuity is at full speed in martian atmosphere?
The ingenuity heliccopter's rotors rotate at ~2400 rpm. How much noise would a person hear ( assuming no protective gear is required ) in martian atmosphere from 5 meters from ingenuity? How much ...
- 3,072
6votes
5answers
1kviews
Growing plants on Mars to increase the oxygen level
I understand that, on Mars, plants would have to grow in a temperature-controlled environment, but could we grow enough plants to sustain a colony, and could we start increasing the amount of oxygen ...
3votes
0answers
202views
How much denser could Earth's atmosphere be before rockets wouldn't work?
As the atmosphere gets denser, any rocket trying to fly through it would experience more and more atmospheric drag. How much denser could Earth's atmosphere be before rockets wouldn't work (or would ...
2votes
1answer
231views
How does one calculate the flight path angle during re-entry?
When the Apollo 11 spacecraft was on it's way onto the surface of the earth, it of course had to re-enter the atmosphere. Listening to the "Think Like a Rocket Scientist" book by Ozan Varol, ...
- 2,493
5votes
0answers
120views
Is an ablative/buoyant “lander” a reasonable design for a Jupiter probe?
It is difficult to design a “lander” for a Jupiter mission for several reasons: There is no “land” to “land on” since Jupiter’s atmosphere just gets denser towards the planetary center. There is a ...
- 33k
-4votes
2answers
409views
Why traveling to the international space station can't be done with airplanes? [closed]
I was surprised to learn that the international space station is not at all in outer space (the space beyond the exosphere) but within the atmosphere about 400 km above sea level which is not very far ...
- 25
14votes
1answer
4kviews
How will the ISS be decommissioned?
According to the latest AP report, it's looking like SpaceX will get the contract to decommision the ISS in 2030. Will parts be saved and reused for a new station? One thing quite objectionable is the ...
- 159
3votes
1answer
623views
Starlink Dishy parameters and satellite recognition
I have two questions: What are the antenna parameters of Starlink dish antennas (like antenna gain, directivity, etc)? Is there any way for me to know which satellite my Starlink dish is ...
2votes
2answers
424views
What is ascent venting?
I am writing a report on CubeSat construction, and while reading Cal Poly's CDS I encountered the concept of ascent venting (or more specifically, the constraint that 'ascent venting per ventable ...
18votes
1answer
6kviews
Person falling from space
A person at rest 500 km above the Earth falls straight downwards. She has a snug magical force field around her that is totally rigid and completely protects her from outside heat. The force field ...
- 199
17votes
1answer
2kviews
How high could Ingenuity fly?
On its 59th flight, Ingenuity achieved a height of 20 meters - twice as high as its maximum height during the original 5 flights that it was designed and expected to last for. In the scheduled 61st ...
- 273
1vote
2answers
117views
Chemical Problems When Encountering Thin Atmospheric Worlds
Bodies such as Enceladus, Mercury, and Triton, etc... have thin (and often temporary) atmospheres. When probes or landers encounter the chemicals in such atmospheres in low orbits/landings, they may ...
- 1,195
0votes
1answer
65views
What is the minimum pressure of a purely CO₂ atmosphere on Europa that can retain enough heat for surface liquid water?
*Ignoring external factors such as Jupiter's magnetosphere blowing this new atmosphere off. I'm not sure where to begin the maths for that
- 21
1vote
1answer
312views
The Boeing Big Onion - Why not use the atmospheric engines on landing?
https://www.aerospaceprojectsreview.com/blog/?p=1325 In relation the the Boeing "Big Onion" SSTO LV, I was doing some brief digging on it's flight profile. (See the awesome Hazegrayart ...
- 1,195
18votes
4answers
4kviews
What stages of distress occur to a person when there is a small hull breach in space?
I'm working on a short sci-fi game and I'm curious about how the effects of a hull breach in a confined area play out. For perspective, let's say a very confined space of 100 cubic feet of normal, ...
- 181
