Questions tagged [iss]

Questions about the ISS (International Space Station), a habitable man-made low Earth orbit satellite whose first component was launched in 1998 and used to conduct experiments for a wide variety of research fields in a microgravity environment.

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From the example of the ISS at 400 km please explain in more detail how to calculate AB or the width of the earth [closed]

ISS at 400 km shows how to calculate the angle to the earth limb I would also like to know how to calculate the width of the earth in km Looking for a solved numerical example
4 votes
0 answers
84 views

Do ISS astronauts have a preference for when EVA tasks are scheduled with respect to lighting conditions?

Given the choice, do ISS astronauts prefer to schedule EVA tasks on the “day light” side of the ISS, the “shadow" side of the ISS or in the shadow of Earth’s night side? I suspect the intense, ...
3 votes
2 answers
293 views

If a baby was born on the ISS, what would its nationality be?

If a baby was born on the ISS, what would its nationality be? Many countries grant citizenship to any baby born within their territory, but the ISS is not national territory ... or is it? If a ...
10 votes
2 answers
2k views

What is the extent of on-orbit refueling experience at the ISS? Which fuels? Which spacecraft?

In a discussion associated with this answer a comment includes the following: The ISS is the only spacecraft in the world that has experience with regular on-orbit refueling. What is the extent of ...
27 votes
2 answers
4k views

Why is there a pregnancy test kit on the ISS?

A comment by Organic Marble on the question Is it possible to get pregnant through natural means in space? includes a link to PREGNANCY TEST (ISS MED/3A - ALL/FIN) which seems to indicate there is a ...
2 votes
0 answers
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Has intra-cranial pressure been measured on ISS astronauts for SANS research?

Visual impairment (VI) <and spaceflight-associated neuro-ocular syndrome (SANS)> is currently ... NASA's top health risk for long duration spaceflight, and millions of dollars has been allocated ...
23 votes
1 answer
1k views

What paper size do they use on the International Space Station?

We know they have at least one printer on the ISS – that's NASA-supplied so it would be in the US Orbital Segment. Presumably there is a printer in the Russian Orbital Segment as well. (Mir had a ...
6 votes
1 answer
747 views

ISS attitude yaw pitch roll conventions. Which one to use?

I found three definitions for the attitude angles of the ISS (yaw, pitch and roll), from three different source. They contradict each other. See the following pictures. For my problem, I have to ...
4 votes
1 answer
444 views

What is the power required to move the space station?

In March, the ISS had to be maneuvered to avoid space junk: NASA said Monday the space station had to dodge part of an old satellite. Sunday night's firing of on-board thrusters pushed the ...
2 votes
1 answer
94 views

GMAT SGP TLE Propagator and maneuver

So this time I try to use GMAT(2022 ver). I am using the SPICESGP4 TLE Propagator to simulator ISS's orbit. For now it work well. However when I try to use the burn to change its orbit altitude, it ...
6 votes
4 answers
333 views

Deorbit ISS vs. Preserve ISS as raw materials for ISM?

Recent news: NASA Seeks Proposals from US Industry for Station Deorbit Spacecraft (ISS) NASA has released a request for proposal from U.S. industry for the U.S. Deorbit Vehicle (USDV), a spacecraft ...
8 votes
2 answers
1k views

Why is the central truss segment of the ISS called S0?

Why is that segment of the ISS truss called S0, not P0, C (for center) or just 0?
1 vote
0 answers
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How many tonnes of cargo are stored on the International Space Station?

I think I read somewhere that SpaceX's Starship should carry 100 tonnes to the moon, and that this amount of mass was greater than the total cargo on the ISS, but I can't find a reference confirming ...
14 votes
1 answer
705 views

28V vs. 124V on the ISS

Apparently the US segment of the ISS runs on 124v DC, while the Russian segment is on 28v DC. Why the difference? I understand it is often safer to have several different voltages rather than one, but ...
0 votes
0 answers
153 views

Live_ISS_Stream stopped?

so I've come across this video, 11 hours of ISS transmissions during 2021 ASAT incident by Russia. The description says the footage was archived from this IBM stream site, so I've looked to see if it ...
4 votes
1 answer
226 views

What is this NASA Spaceflight article trying to explain?

The NASA Spaceflight article Extended Russian EVA complete – conducts satellite deployments contains a very long discussion about the timing of the CRS-12 launch. Had it missed the "single shot launch ...
3 votes
2 answers
141 views

Does earth orbiting debris that threatens the space station have a particular direction bias?

I'm starting to investigate the danger of orbital debris on the ISS (international space station). One could assume that due to the orbital velocity vector, that any debris that the ISS encounter, ...
4 votes
2 answers
311 views

How many printed novels have been in space to date?

I am talking about actual novels brought for recreational purposes. As in manuals don't count. Also, I would like to know who and on what mission these were brought.
13 votes
1 answer
606 views

How much does the ISS "banana" or flex under the constantly changing conditions of solar heating?

This answer to Do antennae on the ISS have to constantly move to maintain data links? discusses some of the challenges precisely pointing an antenna mounted to the ISS exterior. While the ISSs orbit ...
2 votes
1 answer
191 views

In MATLAB, Computing a new TLE/orbit following a delta-v impulse?

I have already worked on this project for a week, and I still can not solve this problem by myself. How can I update data for the SGP4 OrbitPropagator in Matlab's ...
7 votes
1 answer
1k views

What is astronaut Alexander Gerst signaling with this K-shaped hand signal?

In this AP/WISN news item Air leak at International Space Station temporarily plugged by a thumb they show a file photo of German astronaut Alexander Gerst at the Baikonur cosmodrome, making what ...
9 votes
1 answer
1k views

Visibility of ISS at extreme latitudes

Is there a limit to the latitudes the ISS can be seen from (i.e. could it be seen at the North or South poles)?
24 votes
6 answers
4k views

Music played in space

Besides the Curiosity rovers's rendition of Happy Birthday and Chris Hadfields guitar playing aboard the ISS, is there a list of music played in space live (robots playing music counts too)? Note: ...
18 votes
5 answers
4k views

Can you make out the shape of the ISS with the unaided eye as it passes overhead?

Someone claimed to me that they could see the actual shape of the ISS as it passed overhead without use of any optical device. I would think this isn't possible since it is only about 100 meters wide ...
5 votes
1 answer
252 views

Why Isn't the ISS exclusion zone spherical?

According to a video by Real Engineering the ISS has a 50x50x0.75 km exclusion zone. Why Isn't it spherical and why is the "vertical" axis so much smaller? Screenshot from Don’t Drop your ...
33 votes
3 answers
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Can the US Part of ISS survive independent of the Russian?

A new story came out today about Russia potentially preventing the US from using the ISS. One of the claims made was: "The Russian segment [of ISS] can exist independently from the American one. The U....
4 votes
2 answers
2k views

Did the ISS modules have Flight Termination Systems when they launched?

Not that it did, but if something stuffed up during the launch of a module, could it have been destroyed before hitting the ground?
14 votes
1 answer
3k views

How dangerous is tossing equipment off the ISS?

On 2023 June 22, during an ISS spacewalk, Sergey Prokopyev and Dmitry Petelin "tossed overboard" three no longer needed devices, "off the back of the space station in a direction that ...
7 votes
1 answer
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ISRO’s decision not to participate in the International Space Station Program

ISRO has a well-established and successful space program, with many notable achievements to its credit. However, despite its capabilities and expertise in the field of space exploration, ISRO did not ...
26 votes
4 answers
7k views

How quickly could a space agency get to the ISS in case of an emergency?

Here's the situation: The ISS suffered from some kind of catastrophic failure. The crew is unharmed, but the nature of the failure includes: The destruction of any present vehicles capable of ...
11 votes
1 answer
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What's the small white gadget with two black buttons in this video of the International Space Station?

Does anyone know what's the small white square gadget with two black buttons on the right hand side of the hatch frame in this video on the second 2185 (36:25 minutes)? ...
3 votes
1 answer
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What is the composition of breathable air on the International Space Station? [duplicate]

On the ISS, the breathable air has to include oxygen, but it can't be pure oxygen for safety reasons. So what is the composition of breathable air on the station?
12 votes
2 answers
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Time to prepare for EVA out of ISS

How much time is needed to an astronaut on ISS to prepare herself for an EVA? Is this time so much different from time needed during Apollo missions?
14 votes
2 answers
1k views

What is this small white device with LCD and 10 keys on the International Space Station?

I see this device in many places in International Space Station; what is it called and what does it do?
21 votes
3 answers
5k views

Why will Starship's 150 ton payload capacity be sufficient to carry 100 people to other planets?

The ISS weighs 450 tons and carries 7 people for three months without resupply. Starship is supposed to carry 14 times as many people for more than twice the duration with one third the mass. How?
2 votes
1 answer
207 views

ISS (ZARYA) TLE to Latitude Longitude Conversion

I am trying to take TLE of ISS (ZARYA) and get the latitude longitude and height. I am aware the TLE is in TEME~(True Equator Mean Equinox) frame. This means that the TLE was generated considering the ...
15 votes
4 answers
2k views

Have space station modules already been replaced?

After reading this question, I understand that it is simpler to replace a space station than to repair it in order to continue its activity. All modules in a space station may not have the same ...
28 votes
5 answers
12k views

If the ISS had an emergency, how long would it take to get a rocket to it?

If there was an urgent need to launch a rocket to the ISS, how long would it take to have a rocket ready to launch? I am trying to understand what factors take up the time to prepare for a rocket ...
23 votes
3 answers
8k views

Why aren't the radiators on the ISS straight?

The radiators look like a highly stretched paper accordion. Is it just because of how they decomposed, or is there a deeper reason?
12 votes
1 answer
3k views

How close was the ISS to running out of supplies after the failure of CRS-7?

2014-2015 probably was a scary time to be aboard the ISS, though not for the usual reasons. They were worried about supplies running low, at least somewhat. There was quite the string of bad luck. ...
22 votes
3 answers
7k views

How long can a 2 person crew survive on ISS totally cut from Earth?

Something goes bad on Earth, ISS is cut from any kind of supply and the escape pods can't be used. If there are 2 people on board at that time, how long can they survive there? Did someone write a ...
1 vote
1 answer
76 views

What is the relationship between the power supply system and the thermal control system?

According to Wikipedia, the solar panels of the ISS produce an average of about 120 kW of electrical energy, which is then used by the station's systems. Can it be converted into something other than ...
5 votes
1 answer
209 views

Will the International Space Station be able to see the Falcon 9 (Inspiration4 launch)

Will astronauts aboard the International Space Station be able to see any part of the Inspiration4 flight of the Falcon 9 during launch and/or during orbit?
5 votes
1 answer
249 views

How often has the Hitchhiker's Guide to the Galaxy been in space?

I came across an answer saying that a copy of the Hitchhikers Guide to the Galaxy was sent to space in Elon Musks roadster (in 2018). Has the book been in space before that (maybe taken to the ISS by ...
3 votes
1 answer
68 views

At what wavelengths and for what particle types have astronomical objects been imaged or at least directionally resolved from the ISS?

The ISS has an X-ray telescope called NICER and this answer in Astronomy SE (and links therein) explain that it was able to show that there are hot spots clustered near one pole of the pulsar PSR ...
3 votes
1 answer
710 views

How are oxygen and nitrogen replenished in the storage tanks on the ISS?

How they add gases to high pressure tanks. Will the supply trucks bring it? And how will it be connected?
3 votes
1 answer
109 views

How was SSRMS IROSA IPA disposed

On this video, we can clearly see the payload being disposed, but I fail to understand how it gained so much momentum as the Canadarm appears to not be moving. The video mention a new procedure, can ...
6 votes
1 answer
380 views

Dragon as a Lifeboat for Soyuz

The only serious alternatives I have seen reported for the current Soyuz coolant problem are to either use the existing Soyuz, hopefully patching and testing it enough while attached to ISS to be able ...
14 votes
1 answer
4k views

Was the shot-on-the-ISS movie "The Challenge" ever released or is there a release date?

In October 2021 scenes for a movie entitled "The Challenge" were shot onboard the ISS with actor Yulia Peresild and director Klim Shipenko spending a short stay on the station. Source: ...
7 votes
1 answer
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Could you observe air-drag on an ISS spacewalk?

The ISS orbits in the thermosphere and needs periodic re-boosts because of air-drag. At the other extreme, the slowest(?) fixed-wing aircraft are f1d planes made out of 2 grams of balsa wood, ...

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