Questions tagged [iss]

Questions about the 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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5
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1answer
166 views

Term used to identify the blue bars/rails in the ISS?

The interior of the ISS is filled with blue bars used by astronauts to secure their feet and remain in one place. Does NASA have a term for these?
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1answer
182 views

Do astronauts use their toes to grip with in zero gravity?

Feet and toes are not usually as dexterous as hands and fingers but they can grip and hold things. With training and practice they can be like third and fourth hands. Are there any astronauts who make ...
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1answer
179 views

Tracking the Soyuz MS-15 approaching the ISS with binoculars

Next Wednesday, September 25th, the Soyuz MS-15 will be launched from the Baikonur cosmodrome. I guess the trip to the ISS will be long (6 hrs to 24 hr) as usual. I want to see both the ISS and the ...
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What are these two SPHERES doing?

In her tweet ISS expedition 59/60/61 astronaut Christina Koch shows two SPHERES doing something. What are they doing exactly? Why do they appear to be connected? Had a blast cheering on the ...
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2answers
200 views

Assuming MLM/Nauka is launched, what happens to MRM-1/Rassvet?

For the purposes of this question, assume Russia's Multipurpose Laboratory Module (MLM/Nauka) gets launched and makes it to the ISS. Most articles I read say the MLM will dock at the FGB's nadir ...
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What happened to the HDEV ISS Experiment? Is it over?

I've been checking on and off for a few weeks now and the offline logo seems to be always there. Is the program over? Is there another website that shows current views? Thanks for your time!
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1answer
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What are the key dimensions of the new IDA docking ports on the ISS?

I'm building a 3D model of the power and propulsion module of the Lunar Gateway, and I'm trying to establish a few dimensions so it's easier to make it accurate. It seems from the artwork that it uses ...
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1answer
87 views

Is the BEAM module as good as a rigid module in terms of radiation/thermal properties?

It seems that NASA is going to stick with the BEAM module on the ISS for quite some time, and is currently using it for storage. That's pretty cool. However, I was wondering if the BEAM module could,...
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What happened to 2 of the 3 radiators on P6 on the ISS?

Source: nasa.gov; modified What happened to 2 of the 3 radiators on P6 (solar array) when P6 was moved from Z1 (the top) to its final position on the port side? Initially I thought 2 were removed ...
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1answer
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Does the ISS yaw in orbit? And if so, why?

A NASA ISS reference guide (PDF; 37 MB) explains the use of reaction wheels -- Control Moment Gyroscopes (CMGs) -- to control the station's attitude/orientation. My understanding is the station is ...
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ESA's contribution to ISS: what has succeeded the ATV?

ESA's ATV cargo spacecraft was built and flown as part of ESA's contribution to the ISS operating cost. This program has ended. What has replaced it? Has ESA's financial contribution increased, or ...
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Feasibilities and challenges of these Orion + commercial lunar lander scenarios? [closed]

Suppose that US politicians want to fund a moon mission without SLS, using only hardware that is working now in 2019, using Orion together with some future moon lander supplied by the private sector. ...
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ISS DMA vs C&DH?

The Early design of the ISS specified a global Data Management System (DMS) for operations and management of Station software-dependant systems. The DMS was based on ISO/OSI standards for ...
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2answers
2k views

Are lithium batteries allowed in the International Space Station?

Lithium batteries have been restricted or forbidden on aircraft in some jurisdictions, after incidents of fires. Are lithium batteries allowed on the ISS? If so, why would the risk be considered ...
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101 views

Is there dust on ISS and how do they do cleaning?

Where are humans there is normally dust. It likes any more or less electrostatic surface. Is there dust at ISS and do they clean it beyond using air filters in the air system?
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Is the new RGB solid state LED lighting on the ISS ever used to produce colors other than white?

This answer to Why are these astronauts green? explains the new (now about 2 years old) solid state (LED) lighting modules being added to ISS interior lighting, replacing the fluorescent lights (see ...
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1answer
463 views

Can Astronauts really see firework displays from space?

ISS Expedition 59/60 astronaut Nick Hague tweeted: Sporting our red, white, and blue on @Space_Station!🇺🇸 Planning a “cookout” tonight. Beef patties, corn, blueberry cobbler, and lemonade are all ...
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3answers
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How large of an antenna would you need to connect to the ISS's WiFi network from Earth?

Supposing I wanted to connect to the ISS's WiFi network from the ground, how large of an antenna would I need to do so, and what kind? Would they need to increase the power on their end or use a ...
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my height is 5 feet 1inch .i am an indian .i have got spectacles of shortsight . can i try for NASA after laser surgery? [duplicate]

My height is 5 feet 1 inch . I am an indian .I have high spectacle number . Can I try for NASA astronaut after laser surgery?
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Do astronauts on the ISS have to consciously keep their arms down?

After seeing many images of astronauts on the ISS sleeping, with their arms floating, and Chris Hadfield describing arms floating up and head titling forward How Do You Sleep In Space? | Video I ...
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1answer
191 views

What's this mini-cupola-looking object in this photo from the ISS?

(I went through this exercise for my own benefit, so I figured I'd post it) Recently stay-extended astronaut Christina Hammock Koch posted this image to Facebook today and the object indicated by the ...
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1answer
139 views

Is there an archive/database of ISS telemetry over time?

I'm trying to find a database of the ISS's telemetry (specifically, its pitch and yaw) over time. All I've found so far is live streaming, like http://www.telemetry.space/, which gives the realtime ...
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Does energy created from the crews mandatory exercise get used for powering parts of the ship [duplicate]

As the question states, I am wondering if energy created from for example a cycling machine get used for anything?
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262 views

What language is the Russian segment ISS software written in?

I have heard that the ISS uses a Russian coding language for some of the systems and subsystems on the Russian segment of the ISS. What is that coding language?
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How far would the ISS need to be to keep it's attitude with the earth from tidal forces without needing control moment gyroscopes?

I believe the ISS uses control moment gyroscopes (CMGs) to always have the same side facing the earth. How far from the earth does an object the size of the ISS need to be tidally locked with the ...
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1answer
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What format is a “TSA Ephemeris?”

I am working on software that needs to parse an ephemeris file for the ISS. However, I cannot find any documentation for the particular format I have. The only mention I found is in this ...
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6answers
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What makes Ada the language of choice for the ISS's safety-critical systems?

We have it on good authority that Ada is widely used for "safety critical software" on at least the US side of the International Space Station. Of all the possible languages to choose from, what are ...
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2answers
14k views

What language is software running on the ISS written in?

What is the coding language used for the software used on the ISS? Is it NASA's own coding language, or is it something like C, or C#, maybe Haskell?
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1answer
107 views

What is the limiting factor for cargo throughput per launch to the ISS?

Given the high availability of ISS Commercial Cargo launches for NASA, it would seem that the aerospace stereotype of "mass reduction is paramount" may be outdated. What is the current limiting factor ...
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1answer
56 views

How does the JEM/Kibo connect to the “Porch Module”?

In this answer I saw Figure 35 of the encyclopaedic ISS Interface Mechanisms and their Heritage also shown croped below, and in this answer I see the second image (though an SE/imgur bug shows it with ...
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1answer
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Why use water tanks from a retired Space Shuttle?

In 2015, technicians entered the retired Space Shuttle Endeavour to remove the water tanks, with the goal of reusing these tanks on ISS. The space shuttle Endeavour is retired and on display at the ...
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1answer
388 views

Are mechanical pencils used on the ISS?

I have read through this question ("Is it possible to use mechanical pencil instead of space pen in ISS?") and it seems that without specially made pencils, it's unlikely as there are better options. ...
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1answer
200 views

Can the ISS boost maneuver engine be heard by the astronauts on board?

In the extremely cool demonstration video Demonstration of Acceleration Inside the International Space Station During a Reboost ISS Expedition 22 Commander Jeffry Williams says near the end at ...
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1answer
2k views

What do astronauts do with their trash on the ISS?

Astronauts often stay more than a year on the ISS, they produce trash like any other human. Is there like a limit that they may produce ever day or maybe some measures were put in place to reduce the ...
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4answers
7k views

Were any toxic metals used in the International Space Station?

Have any of the following metals been used in the ISS? Lead: used in some batteries, and in many types of solder. Mercury: used in some batteries, and in tilt switches (which I would expect have no ...
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1answer
114 views

How are electrical connectors on the ISS protected from humidity and contaminants?

Early concepts of Apollo had a single computer that was to be unplugged and moved between the CM and LM. This idea was soon abandoned because of contaminant buildup in the connectors: Electrical ...
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71 views

Are all DC motors on the inside of the ISS brushless?

Considering the number of motors on the ISS used in pumps, fans, actuators and robots, are there rules against brushed motors, motors with electrical brushes which can make particulate matter? Based ...
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1answer
303 views

What are the ISS's eight “power channels”? How do they work?

c|net's NASA troubleshoots mysterious ISS power issue links to the NASA Blog post Crew Waits for Dragon Mission While Teams Troubleshoot Power Issue which says: Monday morning, teams identified an ...
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0answers
122 views

How does European jurisdiction in the ISS works?

This answer notes that participant nations have jurisdiction over their modules. So in a US module, you are in US jurisdiction, etc. Which means that in an European module, you are in European ...
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1answer
277 views

Does America's Birthright Citizenship law apply to the American side of the International Space Station?

In a scenario in which a pregnant Russian woman were to give birth while visiting the International Space Station, and if she were to give birth while on the American side of the ISS, would that baby ...
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527 views

Has there ever been an astronaut that bailed out on going to space last minute?

I’m just wondering if any astronauts have gotten cold feet last minute and have refused to go into space.
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5k views

How would a mousetrap for use in space work?

To the question If mice escaped on the International Space Station, could they live and thrive? both the answer and comments point out that while mice escaped from an experiment might survive a while ...
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1answer
701 views

If mice escaped on the International Space Station, could they live and thrive?

The SciNews video Mice aboard the International Space Station is fun to watch for those tired of the same old rocket launch videos. Behavior of mice aboard the International Space Station 20 ...
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112 views

How many laptops onboard ISS?

About how many laptops are there on board the ISS? I saw the header image in this article: https://www.nytimes.com/2019/04/11/science/scott-mark-kelly-twins-space-nasa.html?partner=rss&emc=rss and ...
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Just how record-setting was the launch-to-docking time of the April-4-2019 Progress resupply mission?

Digital Trend's article 3-plus-hour supply trip from Earth to International Space Station breaks record mentions that this was even faster than the typical "fast-track" Russian launch-to-docking time ...
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1answer
57 views

How to replace and refurbish the EMU suit used at the ISS?

If new parts for the EMU suits should be transported to the ISS they may use the Progress cargo space ship. But what about return of used suit parts to ground for refurbishment? A Progress cargo ship ...
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1answer
246 views

How old are the EVA space suits that are currently used on the ISS?

Scott Manly says in his new video Updates - JPL Visit, Mars 2020, Moon in 5 Year, EVA Changes, Indian ASAT after about 03:25 that the EMUs that NASA uses are ...
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1answer
322 views

What steel ball was thrown out of the ISS to help test how well ground stations can track orbital debris?

The question What kinds of things have been tossed out of the ISS? has a broken YouTube link. This is why it's good to include at least the name of the video in your post (which I didn't back in 2016)....
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69 views

How frequenty have space walkers been changed based on space suit configuration?

On Friday, March 29, two astronauts were supposed to conduct what would have become the first all female space walk, Christina Koch and Anne McClain. After her first space walk on March 22, Anne ...
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1answer
2k views

How does electrical safety system work on ISS?

Is there any possibility that the power consumption is greater than power supply on ISS? What happens (or potentially would happen) if we plug too many electric devices so that ISS couldn't handle it? ...

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