Questions tagged [spacecraft]

Questions regarding the craft that house humans or equipment during space exploration.

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5
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1answer
120 views

Proposed spacecraft propulsion with particle accelerator

With the new particle acceleration technology of plasma accelerator, electrons or protons can be accelerated to relativistic speed in a device much smaller than current Linac (According to wikipedia, ...
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0answers
44 views

Aldrin cycler mission to Mars in MATLAB [closed]

I am planning to do a mission project on Aldrin Cycler (Earth to Mars) in MATLAB. Can you please suggest me where to start. I tried reading few research paper related to this topic, any other advice?
2
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1answer
98 views

Were there any spacecraft with nitrogen-oxygen atmosphere, but without a system for nitrogen replenishment?

When watching the Vintage Space video Apollo’s Flammable Oxygen Atmosphere Explained, I started to think: was there ever any spacecraft proposed with nitrogen-oxygen atmosphere, but without a system ...
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1answer
65 views

Is there potential for Trident to visit a KBO like New Horizons did?

After its flyby of Pluto, New Horizons was also able to visit 486958 Arrokoth achieving secondary scientific goals and providing a picture of a KBO snowman. Could Trident potentially also be able to ...
8
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1answer
2k views

Are there any photo(s) of International Space Station (ISS) captured from above its altitude? [duplicate]

Are there any attempts made to capture an image of the whole ISS in one take? Or is it not currently practically possible? If Soyuz, SpaceX Dragon, etc. have cameras installed on them, images can be ...
1
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1answer
56 views

Would a space rocket launching from Ceres in a path to Jupiter be faster relatively to the sun than one launching from Earth?

Suppose you have a space rocket which when launching from Earth its speed relatively to Earth it's 11 km/s. For what I've read in another topic in Space SE, the orbital velocity of the planet where a ...
-4
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1answer
109 views

How to heat up the inside of a metal ball in space

Ok, they say third times the charm. Say you had a metal ball around 30 feet in diameter. At a distance of 143 million miles from the sun and you were trying to heat the air up inside the ball using ...
1
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1answer
142 views

How can the download speed increase from space probes?

It always seems to be a genuine question that is How can we download data from far away probes in instant. When New Horizons reached Ultima Thule, it took us quite a few months to have a great picture ...
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0answers
49 views

Defining overshoot and undershoot boundary of entry corridor

I have been reading up on the mathematic of atmospheric entry. I have found different methods to theoretically calculate the corridor width but I don't understand how to define the overshoot and ...
3
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0answers
54 views

What is the proper terminology for the process of a satellite entering a planet's shadow? [closed]

What is the proper terminology for when a satellite or spaceship passes into a planet's shadow or night side? Is it crossing the terminator? Passing into eclipse (or something better)? If there is a ...
2
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2answers
166 views

Two-body problem VS Three-body problem Applications

The two-body problem deals with two bodies under certain assumptions while the restricted three-body problem deals with three bodies where one has a negligible mass (i.e. spacecraft or comet) I was ...
2
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1answer
120 views

Can reaction wheels be used for detumbling?

During orbit insertion, the satellite can start with a high tip-off rate which requires detumbling. From what I have read, detumbling is usually done using magnetorquers. I was wondering if ...
2
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2answers
543 views

Do they actually regularly send out people with space ships to spacewalk out and fix broken satellites?

I have an extremely limited understanding on how many people have been "in space" (at least in orbit around Earth) and how many people go there every year/month/week(?). It could be 1 per year or 100 ...
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0answers
39 views

Major topic headings for lunar CubeSat mission design planning?

I am working on a project to design a complete mission for a lunar CubeSat. Assuming that the launch segment is already covered and I need to focus on the spacecraft design. I wanted to know what ...
0
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1answer
75 views

Artificial Gravity [closed]

Is it possible to make the artificial gravity for space station to work by using the Permanent Magnet (PM) technology to float/rotate and balance out the inner floor/living quarters to counter-rotate ...
2
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1answer
197 views

Can jet engines be used to launch a rocket?

Following up on my previous question Can a VASIMR Plasma engine be used to launch a rocket?, I was told that VASIMR plasma thrusters are inefficient in an atmosphere. I then had the idea of using jet ...
7
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1answer
500 views

What about Orion ISS missions?

I remember that the Orion spacecraft was a thing when it had its maiden voyage in 2014. Nowadays, all I read about is the SpaceX Crew Dragon and Boeing Starliner, which are both running late. Soyuz ...
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4answers
236 views

What exactly makes PHP CLI fundamentally unsuitable to power all the math on board a space craft?

Let's say that there is an eccentric multi-trillionare who made his fortune by coding a very popular service in PHP. He knows it very well, and has such a love for it that he makes a rather unorthodox ...
0
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1answer
76 views

What would be the cost of a thorium reactors at the core of a large starship? [closed]

Thorium is a high power substance that can contains large amounts of energy in a small space. How much would it cost to install and maintain one on a large starship? As well as using solar panels, ...
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2answers
88 views

How to use specific impulse for multiple stages

I am given a scenario where I need to create a program to give the initial launch mass of a spacecraft that can vary between 4 and 20 stages. I am given that the "specific impulse for all stages is ...
18
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4answers
4k views

How does a Spacecraft change its orbit?

I am a high school student. I saw the latest Indian spacecraft "CHANDRYAANN 2", which was in orbit around the Earth for 14 days..... I am so curious to know how a spacecraft changes its orbit. I ...
1
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2answers
282 views

What form of Electric Current Powers Spacecrafts - Alternating Current (AC) or Direct Current (DC)?

Almost all spacecrafts launched by humanity consist of electrical components which require electricity to run. Usually, spacecrafts are either powered by a Solar Panel or using Radioisotope ...
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0answers
89 views

How many Starship launches would it take to build this simple centrifugal space station concept?

Every centrifugal space station design I have seen uses either a large curved material or an inflatable structure. There have been no large scale curved material construction in space and only one ...
5
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1answer
215 views

What will happen to the rocket exhaust particles fired by spacecrafts?

During the launch, when the rocket is itself yet to attain a stable orbit, the exhaust from the launch vehicle is directed approximately in the opposite direction of its velocity. So, there is no ...
6
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2answers
358 views

Orbital mechanics: Jump from ISS, where will I meet again?

This is a hypothetical question, and I hope it is on-topic here. If an astronaut would stand on the surface of the ISS, and they will make a jump directed perfectly towards the earth, what will their ...
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0answers
104 views

Help: Specific Quote for Interstellar Spaceship

I know that this quote exists, i just don't know who said it or the specific language. The quote goes something like this: If we ever decided to send a manned spaceship (generational ship) to ...
3
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1answer
412 views

Rover vs pathfinder vs lander?

I am confused in difference between rover and pathfinder and lander I have often read/heard all these three terms when searching/studying about Mars Although all 3 of these are parts of space craft ...
4
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0answers
171 views

Cable lacing in spaceflight, when was waxed cord forbidden?

During the sixties of last century traditional cable lacing was done using a thin cord, traditionally made of waxed linen. The wax should improve knot retention. From NASA-STD-8739-4. Using waxed ...
16
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10answers
11k views

If a spaceship ran out of fuel somewhere in space between Earth and Mars, does it slowly drift off to the Sun?

Pretty much what the title is saying. I feel like I am missing something fundamental here and this is driving me crazy. Does a spaceship which is out of Earth's gravity drift to the Sun eventually?
14
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2answers
3k views

Could a complex system of reaction wheels be used to propel a spacecraft?

I was think about different ways spacecraft could feasibly move around and I came across Reaction Wheels as a way they can rotate. So I was curious if a complex system of them could be used to propel ...
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1answer
187 views

Magnetic force-driven propulsion system for an interplanetary/interstellar spacecraft

I have come up with a conceptual idea of a magnetic force-driven space propulsion system. What I believe is very unique about this propulsion system concept is that its working principle should not ...
2
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3answers
478 views

Why don't launcher rockets ordinarily have names?

There are names for the class or family of launcher, e.g. Delta IV, Electron, Falcon. Sometimes the launcher is "named" for a specific configuration of a class, e.g. "Delta IV Medium+ (4,2)", "Chang ...
6
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2answers
692 views

Why isn't LOX/UDMH used in staged combustion rockets now-a-days?

Liquid rockets usually use a propellant pair of fuel and oxidizer. I've seen some rockets from 1960's that used LOX/UDMH as propellant pair but why they are not used any more although it is mentioned ...
6
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1answer
567 views

Which Voyager spacecraft “mutinied”, and what really happened?

The August 2017 BBC News Science in Action podcast The Algae that Changed the Earth includes other topics, including the following: In August and September 1977, Nasa's probes Voyager 2 and ...
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1answer
238 views

Could a CubeSat be propelled by this low-tech electromagnetic propulsion system?

I have come up with a conceptual idea for a low-tech electromagnetic propulsion system for a CubeSat, and I would like to know if it would create (on a theoretical basis) a net force strong enough to ...
2
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0answers
102 views

What was the volume of the Space Shuttle orbiter, not just the crew cabin or cargo bay but the total volume of the entire craft?

For context, after an in-depth Google search, I asked the question "What was the volume of the Space Shuttle orbiter, not just the crew cabin or cargo bay but the total volume of the entire craft?" on ...
3
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0answers
78 views

How do you calculate burns needed to land?

Assume I was landing a rocket and wanted to do calculations on how to correctly land. How do you determine at what time you fire the engine and at what power to successfully land on a predetermined ...
2
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0answers
122 views

Recalculate Orbital Elements after a ΔV

I would like to write a program able to simulate a keplerian orbite given an initial position and velocity (r0, v0) and able to manage accelerations in different directions. To simulate the orbit, I ...
2
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1answer
162 views

How to become an astronaut?

I am a pure/applied mathematics student at Tehran University. About 2 or 3 years later I will get my bachelor's degree and start studying master's in applied math or theoretical physics. And maybe I ...
5
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1answer
260 views

Did the heat shield of the Vostok 1 capsule ablate during reentry?

This Wikipedia article (in german) has some information about the heat shield of Vostok 1. The heat shield was made from asbestos, its thickness was increased from 3 cm to up to 18 cm. The weight of ...
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1answer
100 views

what would happen to an ohio Class nuclear sub if it was launched into Space [duplicate]

Years ago I read a neat Syfi Book about a special warp phase engine that was thrown into a sub and used for space travel..I also grew up Watching Star Blazers.. lets say a late model Nuclear Sub was ...
12
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2answers
2k views

How feasible is the Delta-Glider?

In Dr. Martin Schweiger's freeware spaceflight simulator Orbiter 2016, a very popular(but fictional) spacecraft is the Delta-Glider. It is capable of take-off from a runway, has hover engines for ...
14
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5answers
7k views

What are the benefits of cryosleep?

NASA is working on a so-called 'Cryosleep Chamber', but why do they need it so badly? There must be a lot of benefits attached to this technology..
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0answers
169 views

ECI to LVLH transformation [duplicate]

I am working on a transformation of ECI coordinates to LVLH (Local Vertical Local Horizontal) coordinates in order to calculate satellite maneuvers. Does anybody know how should I approach the problem?...
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0answers
35 views

application of optimal control for spacecraft control on elliptical orbits

I want to start writting paper for spacecraft control on elliptical orbits, start with introduction of what is orbits and different object out of earth and on orbits(currently and till now) so I want ...
4
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1answer
176 views

What might be a viable avenue of propulsion research in aiming for mission delta-V north of 100 km/s?

This question was inspired by some comments of mine I left on an answer here: Is it better to develop more powerful rockets instead of seeking and developing new technologies? and thus in turn both ...
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1answer
114 views

Is it better to develop more powerful rockets instead of seeking and developing new technologies? [closed]

I have question about Space Industry and Era. I'm aiming to being Rocket Scientist but I think it looks like will be so hard to reach far planets with these rocket technology that uses Newton's Laws ...
8
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1answer
551 views

How did the Venus Express detect lightning?

I found it very interesting (especially the sound recording) of the Venus Express detecting lightning on the planet Venus. I found it strange watching the ' national geographic ' video about the ...
3
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3answers
1k views

When do aircraft become solarcraft?

Any body travelling through particles undergoes drag. Any body able to generate lift (for instance spheres cannot generate lift) can generate lift if it undergoes drag. First by assuming one body in ...
3
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2answers
176 views

Were there any spacecraft not configured for a spacewalk?

Since the first spacewalks were preformed, have there been any spacecraft that didn't allow for a spacewalk?

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