Questions tagged [spacecraft]

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

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1answer
18 views

Is there an equivalent of the Dragon 'claw' and Apollo umbilical fairing between the Soyuz crew and service modules?

The Apollo service module provided power etc. to the command module through umbilical connections covered by a fairing. When the two modules were separated, a 'guillotine' cut through the cables and ...
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1answer
77 views

Can Virgin Galactic's Orbital ship reach ISS

We have all come across theories, concepts proposed missions of orbit tour as a part of space tourism. One such company is Virgin Galactic. I have had read that the SpaceShip2 will have merely 6 mins ...
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1answer
121 views

Wont any space battle fill up the system with supersonic lethal shrapnel, making space very dangerous?

Any explosion in space might produce very fast moving projectiles, that after getting slingshotted by planets may pick up way more speed. Same might happen with every bullet that misses. They are ...
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1answer
48 views

How does JWSTs ISIM direct light into its detectors?

I came across this diagram in the JWST User documentation which explains how light is directed into the ISIM (Integrated Scientific Instrument Module): But the ISIM contains four detectors (MIRI, ...
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3answers
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Why haven’t we landed probes on Neptune, Jupiter, Saturn and Mercury with onboard cameras?

Why haven’t we landed probes on Neptune, Jupiter, Saturn and Mercury with onboard cameras? Voyager 1 and Voyager 2 were sent out in the 70’s, with 70’s technology, is there technology available that ...
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1answer
74 views

Did the Mars Science Laboratory do any science that wasn't done by Curiosity proper?

This answer to What is the equivalent of Curiosity's “MSL” in the context of Perseverance? What's the official name of the mission? Are the distinctions similar? got me thinking that answers to Where ...
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0answers
89 views

How to design heatshield bluntness?

How is the bluntness or curvature of a heat shield of a reentry spacecraft designed? If the answer depends on size and mass, consider a deep space sample return "mini capsule" 50 cm in ...
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1answer
194 views

Why soviet didn't bring back “laika” to earth & how re-entry logic works?

Was technology not developed that time to do reentry ? When was the first attempt made to re-enter orbit ? How did Soviet successfully did re-entry for Gagarin but not earlier missions ?
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How is it possible to reduce the weight of a high-energy laser?

To provide some context.. I have designed an interstellar spacecraft called Solar One. It employs a combination of 3 propulsion methods: nuclear fusion, beam-powered propulsion , and photon propulsion....
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2answers
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Sending a camera to space?

I’m trying to get some interesting footage of the earth from space. I’m considering a weather balloon (preferably available online) with helium. I’d rather it be actually on the border of space, 100km ...
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1answer
113 views

Orbiting the earth

What is the minimum speed in Km/hour (tangential to earth's surface) required to orbit the earth, at an altitude of 111 Km (well beyond Karman line), where there is no atmospheric drag. Can we achieve ...
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2answers
582 views

How do space blankets (thermal blankets) work?

On earth, blankets serve to primarily buffer temperature changes / heat transfer that would occur via convection (e.g. a blanket traps air near you so that after your body warms it, it doesn't just ...
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1answer
73 views

How did the first astronauts/kosmonauts in the 1940s/1950s *know* that the sky isn't actually a dome with “little dots” (stars)?

This may sound ridiculous, like a joke question, but I'm for real. I've been thinking a lot about things like this, but I always return to this question: Those early "space explorers" who ...
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1answer
491 views

What were the first Soviet spacecraft to use an internal docking tunnel?

The first crew transfer between space vehicles was from Soyuz 5 to Soyuz 4. It was done outside the spacecraft by Aleksei Yeliseyev and Yevgeny Khrunov. The first U.S. crew transfer was during Apollo ...
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4answers
218 views

Have space probe gone to unplanned destinations?

Reading this question about multiple gravity assists (Why is Voyager 1 faster than all other space probes?), it caused me to wonder if any probes have been redirected to additional (or alternate) ...
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2answers
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Which parts of a spacecraft are joined by adhesives?

Where in a spacecraft are adhesives most commonly or routinely used? Are there specific spacecraft components or assemblies that are regularly built by using adhesives rather than other methods of ...
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3answers
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Is there any way that real stars would move like they do in the classic Windows 3.x screensaver if traveling through space at extreme speed?

In old versions of Windows, such as 3.1, there was this screensaver called "Starfield". It looked like this: However, in movies and TV series, it usually looks like ...
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1answer
78 views

How does the Bias Momentum Wheel and the Reactive Momentum Wheel differ?

I have done a lot of searches on the types of momentum wheels, but I couldn't find too much answers. What are the differences between a Bias Momentum Wheel and Reactive Momentum Wheel, and what they ...
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4answers
64 views

Relating Rocket Propellant Selection to Specific Impulse

Is it possible to directly relate a fuel/oxidizer selection to specific impulse at vacuum? I have tried a few different methods, but cannot seem to directly relate the two.
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2answers
91 views

Using heated water as propellant for a DT-He3 fusion thruster

Not sure if this would be best placed here or in World building SE, but I'll try here. Let's say I have a Dueterium-Helium 3 fusion pulse engine (similar to what is in the Expanse) that will use ...
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2answers
1k views

Encryption in radio system

We know that radio waves are used in communication with rockets, space crafts and satellites. Now, radio system basically consists of transmitter and receiver. If there is frequency match between ...
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3answers
4k views

If the Earth spun clockwise, how would that affect Space Exploration?

If viewed from the North Pole, the Earth spins counter-clockwise. Because of this, many satellites also orbit in the same direction as you can take advantage of the Earth's rotation and essentially ...
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1answer
102 views

Is it possible to create an overridable inflatable airlock seal?

If the information I obtained is correct, inflatable airlocks are sealed by the air pressure and cannot be unlocked unless the pressure is lowered(correct me if I'm wrong). Additionally, airlocks ...
2
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1answer
110 views

Could a carbon arc lamp help to propel a spacecraft through interstellar space?

I would like to know, on a theoretical basis, if the electron flow entering into the anode of a carbon arc lamp would impart enough kinetic energy to the anode, and thus to the spacecraft, to help ...
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1answer
94 views

How are satellite operating modes implemented?

It is pretty simple to find documentation about satellite operating modes behaviour when trying to develop satellite onboard software (example of safe mode behaviour on wikipedia, or on researchgate), ...
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1answer
127 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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51 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?
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1answer
111 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
68 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 ...
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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 ...
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1answer
63 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 ...
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1answer
118 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 ...
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1answer
146 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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60 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 ...
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57 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 ...
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2answers
207 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
154 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
548 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 ...
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1answer
80 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
203 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 ...
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1answer
528 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
243 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 ...
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1answer
83 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
94 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 ...
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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 ...
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2answers
342 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
91 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
224 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 ...
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2answers
370 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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