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.

Filter by
Sorted by
Tagged with
3 votes
0 answers
60 views

short duration of crew 4 mission

I am wondering why the crew 4 mission is (for the moment) only planned for 4 and half months and not the usual 6-6.5 months? Thanks.
user avatar
  • 371
1 vote
0 answers
51 views

How spontaneously can a spacecraft be deorbited [duplicate]

Currently the return of AX-1 has been rescheduled multiple days due to weather concerns in the landing area. How quickly could astronauts on the ISS evacuate to the ground if so required? Scenarios ...
user avatar
  • 3,362
0 votes
0 answers
53 views

How fast can LEO be evacuated [duplicate]

Currently the return of AX-1 has been rescheduled multiple days due to weather concerns in the landing area. How quickly could astronauts on the ISS evacuate to the ground if so required? Szenarios ...
user avatar
  • 3,362
7 votes
5 answers
3k views

What is the maximum distance between two satellites orbiting at 400 km that would still allow them to communicate with each other using radio waves?

All satellites have the same inclination. At an altitude of 400 km, the circumference of their orbit is $2\pi \cdot (6371+400) = 42\ 543$ km. If, for example, you have only 2 satellites separated by ...
user avatar
1 vote
2 answers
122 views

Specifications for Spacecraft interior and exterior paint colours

Are there specifications for Crewed mission spacecrafts in terms of interior and exterior paint colours? I.e. Only specific paint colours are required internally and externally. Can these paint ...
user avatar
4 votes
2 answers
1k views

What will happen to the parts of the ISS after they burn up?

NASA has announced that the ISS (International Space Station) will be deorbited in 2031. Even if this date is moved the space station will eventually deorbit. Once the ISS has broken into thousands of ...
user avatar
6 votes
3 answers
828 views

Were Hasselblad cameras used in space after the Apollo mission?

Analog Hasselblad cameras with photochemical film were used extensively during the Apollo mission to the Moon. Were they used later for Spacelab, Space Shuttle and Mir or ISS?
user avatar
  • 45.9k
6 votes
1 answer
824 views

What is this patch worn by the American astronauts?

In this image the American astronauts wear some patches on their chest but what is it? If it is the expedition's emblem, why it is so different from Russian ones?
user avatar
  • 3,057
4 votes
3 answers
834 views

Why is Nasa retiring ISS

Is there no need to do experiments in space or have that thing where people can go into space. If they spend so much time building it why just trash it for essentially nothing?
user avatar
  • 375
32 votes
3 answers
6k views

What would happen to the ISS if the Russians undocked their part?

So... RIA Novosti (Russian media agency) made a video, where they show the Russians ostensibly undocking the Zarya module and the US part of the station falls into the atmosphere (someone was playing ...
user avatar
  • 6,488
7 votes
1 answer
1k views

What is the purpose of these three taut cables near an ISS astronaut during EVA? To what do they connect and why do two appear intertwined?

During CBS News senior space analyst Bill Harwood's explanations in the video Russia's space agency severs ties with the U.S. and its European partners they keep showing the same five seconds of an ...
user avatar
  • 148k
7 votes
1 answer
209 views

Could SpaceX deliver the Interim Control Module to the ISS?

Three days ago Roscosmos chief, Dmitry Rogozin, bemoaned the sanctions on Twitter saying they could break the ISS cooperation, asking Joe Biden how he'd manage to manage the course corrections given ...
user avatar
9 votes
1 answer
364 views

How does the Russian invasion of Ukraine affect ISS operations? [closed]

I realise this question may be shut down as opinion-based, but here goes anyway. With diplomatic relations in the toilet following Russian military activity in Ukraine, how will this affect future ...
user avatar
  • 1,143
1 vote
1 answer
82 views

Do you need to operate laptop computers to run the ISS SSRMS robots Canadarm2 & Dextre? What if there's a pressure loss and you're wearing a suit?

Comments and to some extent the current answer to If an ISS emergency requires pressure suits temporarily, can they still use the laptops? Move the cursor? address a highly unlikely scenario where a ...
user avatar
  • 148k
1 vote
2 answers
142 views

Why procure a separate de-orbit vehicle for the ISS? Why can't the ISS flip over and de-orbit itself?

From NASA Solidifies Planning to Deorbit ISS in 2031: ISS average altitude estimates targeting re-entry early 2021 Figure 4. shows the ISS end-of-life de-orbit altitude, cargo resupply, and de-orbit ...
user avatar
  • 148k
4 votes
0 answers
73 views

Why is ~280 km one month before reentry the lowest altitude that the final ISS crew may see? Isn't that cutting it kinda close?

Writing this answer to When will the ISS deorbit? I came across Space Policy Online's NASA Solidifies Planning to Deorbit ISS in 2031 and the image below. It shows the estimated last crew occupying ...
user avatar
  • 148k
4 votes
2 answers
165 views

When will the ISS deorbit?

Is this undecided or still up for debate? Also, might it be delayed or put earlier for some reason? What about if we just abandon it?
user avatar
3 votes
0 answers
61 views

What can/do astronauts look at with the portable telescopes aboard the ISS?

I would like to know what will be the visibility from the portable telescope aboard the International Space Station. What could they potentially view, and what are (at least some of) the things they ...
user avatar
5 votes
0 answers
107 views

New spin on laundry day: How will ISS cope with washing machine vibration and angular momentum?

Although the ISS currently has no laundry facilities, NASA’s Glenn Research Center sponsored a washing machine design contest to do the drudgery during spaceflight. Plans have been made for testing a ...
user avatar
  • 6,410
5 votes
0 answers
70 views

How many hours/week on the ISS is spent on science vs maintenance?

This was asked in 2016 : Does ISS crew exercise time count toward their X hour work week? The answer as of 2016 was 40 hours / week for a crew of 6. But as noted there, when the crew size increases to ...
user avatar
12 votes
1 answer
457 views

Why do EVA suits have legs?

Why do EVA suits have legs? Planetary exploration suits (PES) obviously need legs. Spacesuits with legs are “a classic icon of human space exploration” and a requirement for mobility. https://www....
user avatar
  • 6,410
1 vote
0 answers
115 views

Pressurized gloves have significant limitations. What are objective advantages/disadvantages of the alternatives? [closed]

Conventional EVA suits suffer from mobility and tactile sensory limitations due to their pressurization. Any articulated container which changes volume with motion will resist motion if pressurized. ...
user avatar
  • 6,410
1 vote
1 answer
100 views

What are all these packages attached to a side module of the ISS? How did they all get there?

Ars Technica's New images of the International Space Station reveal that it is still a jewel includes the photo below and I've added a view of a side module with a collection of various rectangular ...
user avatar
  • 148k
1 vote
0 answers
53 views

Oxygen Generation System

Is there any possible failure that OGS (oxygen generation system which ISS has) can overproduce oxygen in a spaceship? Just wondering the possibility how can spaceship explode by themselves without ...
user avatar
6 votes
1 answer
811 views

World's most expensive space cookie? (What am I looking at, object identification, rivets and all)

On the NPR page Our Favorite Things, Short Wave-style there is an image whose caption reads Earlier this month, crew aboard the International Space Station received a a novel item in their cargo re-...
user avatar
  • 148k
3 votes
1 answer
423 views

Shortest stay at the ISS once continuous operations and regular crew rotations began? How does Maezawa (planned) 12 days compare?

Confused about Yusaku Maezawa's first "standing on the shoulders of giants" PR photo on the shoulders of Elon Musk in 2018 then launching to the ISS aboard Soyuz, I found that the article ...
user avatar
  • 148k
2 votes
1 answer
114 views

Which S-Band ISS antenna stopped transmitting to TDRS and was replaced during the recent 2021-12-02 EVA?

CNN's says: Marshburn and Barron began their spacewalk at 6:15 a.m. ET, and it's expected to last for about six and a half hours. The team will replace a malfunctioning communications antenna. Live ...
user avatar
  • 148k
5 votes
0 answers
78 views

How long does it take for the ISS astronauts to isolate a module

In the chosen answer for What size hole in the International Space Station would be catastrophic, we find that a 0.6cm hole would depressurize the ISS to life threatening levels in 14 hours. A 20cm ...
user avatar
  • 1,814
8 votes
2 answers
322 views

What size hole in the International Space Station would be catastrophic?

I was reading "Russia threatens criminal charges against a NASA astronaut" in arstechnica.com. Somewhere in the article it says: " At the time, a 2 mm breach was discovered in the ...
user avatar
  • 825
2 votes
1 answer
278 views

What do "initiate dragon safe haven" and "close all centerline hatches" and "next two crossings" mean?

CNN's video Hear warning to ISS after Russia's dangerous missile test plays an audio clip of a voice communication from NASA Houston ground control to the ISS crew, with the message: ...we will need ...
user avatar
  • 148k
8 votes
1 answer
245 views

What factors have enabled the increase in ISS crew?

A glance at the ISS expeditions wiki seems to show that the ISS's crew complement has been increasing in recent years, from between 3 and 6 to 6 to 11 - a boost to the science productivity, I'm sure. ...
user avatar
  • 2,144
6 votes
1 answer
203 views

What generates static charge on the ISS?

There are two plasma contactors on the ISS Z1 truss, designed to neutralize static electrical charge of the space station. What generates static charge on a spacecraft? If it is picking up charge from ...
user avatar
  • 6,410
1 vote
1 answer
98 views

What are the operational details of the Canadarm Latching End Effectors?

There are numerous pictures of grapple fixtures and LEE available. I can appreciate how the wire snare works to snare the center pin of the grapple. But I’m foggy on how the location cam/arm ...
user avatar
  • 6,410
9 votes
2 answers
3k views

Can an ISS module survive reentry?

Nasa is making plans to de-orbit the ISS safely over the pacific ocean, this eventually leads to the question of whether or not an ISS module can survive reentry (survive meaning it is recognizable ...
user avatar
0 votes
1 answer
138 views

Is pre-deorbit explosive disassembly of the ISS utilising propellant a useful way to reduce impact debris?

The ISS could be disassembled post retro burn to provide smaller pieces for burn-up. If the hull space were filled with a stoichiometric mix of propellant from the deorbiting vessel post-burn, it ...
user avatar
  • 6,410
4 votes
0 answers
146 views

Deorbit of ISS is a unique event. Are there plans for scientific observation?

The ISS deorbit will be unique. Not only because of its mass, but because the time, location and observing conditions can be accurately chosen. Instruments could be placed for detailed observation. ...
user avatar
  • 6,410
6 votes
1 answer
224 views

When the ISS is de-orbited, what is the likely mass of the largest impact fragment?

Some parts of the ISS will be more fragmentation-proof than others. Engine bells and pressure vessels, for instance. Has NASA done a formal assessment of component survivability to determine what big ...
user avatar
  • 6,410
23 votes
3 answers
8k views

If you release a tool outside the ISS in space will it remain at the "same" place forever?

If an astronaut doing a repair outside the International Space Station (ISS) gently lets go of a tool into space, will it keep "flying" (orbiting) at the same spot relative to the ISS where ...
user avatar
3 votes
2 answers
216 views

Can ISS trash be used as reaction mass for orbital maintenance

There have been a number of videos posted about trash being hand-pitched out the back of the ISS. This seems like a waste of potential reaction mass, especially since it cost $20,000/kg to get it up ...
user avatar
  • 6,410
6 votes
0 answers
161 views

What to do until the hearse arrives: is there a designated morgue on ISS?

When I have asked, every commercial ocean-going vessel I’ve been on has provision for a refrigerated morgue. In the good old days, it was a cannon ball at your feet and six feet of sail cloth with the ...
user avatar
  • 6,410
2 votes
1 answer
58 views

Are the original ISS solar panels single or polycrystalline silicon? What about the new ROSA roll-out arrays?

Most silicon photovoltaic arrays on Earth are silicon (no layers of III-V material for added efficiency) and they are grown as polycrystalline silicon rather than sliced from single crystal silicon ...
user avatar
  • 148k
4 votes
0 answers
149 views

Exterior "running lights" on ISS?

In Scott Kelley's memoir "Endurance," he describes how challenging it is to navigate the exterior of ISS when in Earth's shadow, and he mentions that his Russian colleagues would just stay ...
user avatar
  • 141
11 votes
1 answer
2k views

What keeps the pressure stable inside the ISS?

I'm doing research on life support systems for the design of a Martian scientific base, and I'm having trouble finding information about the specifics racks that keep pressure stable inside the ISS. I ...
user avatar
0 votes
0 answers
103 views

How is it possible that the windows on the ISS mostly face Earth only? [duplicate]

In this article astronaut Clayton C. Anderson states that on the ISS the windows "mosty face Earth, which means that it is only possible to see the stars at the very edges of the windows, and ...
user avatar
4 votes
1 answer
110 views

Are there chances to get a Hubble + ISS Moon transit picture?

I have seen these cool transit pictures where ISS is transiting the moon ISS is transiting the Sun Hubble is transiting the moon I even saw picture of ISS Sun transit during solar Eclipse Tiangong ...
user avatar
  • 373
5 votes
0 answers
104 views

When docked, do Dragon solar panels contribute to ISS mains power?

What it says on the tin. Does a docked Dragon trunk section contribute to the ISS's batteries? I'm aware it would probably be minimal though due to orientation and occlusion of the panels, and when ...
user avatar
  • 14.6k
5 votes
0 answers
98 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?
user avatar
  • 51
2 votes
1 answer
172 views

Was the Isp = 11,000 seconds Neumann Drive tested on the ISS? Did it work? How well did it perform?

In 2018 answers were posted to What is Australia's Bartolomeo platform? When does it arrive at the ISS; when and where will it be attached? Will the Neumann drive start testing aboard the ISS ...
user avatar
  • 148k
2 votes
1 answer
190 views

Which two spacecraft are being shown disconnecting here, and what was the connection for?

The new Wall Street Journal video China's Answer to the Aging International Space Station: The Tech Behind Tiangong | WSJ shows what looks like it might be a fuel transfer connection decoupling at <...
user avatar
  • 148k
4 votes
1 answer
177 views

What orbit-raising propulsion system will Tiangong use, and how does it differ from that of the ISS in terms of performance and technology?

The new Wall Street Journal video China's Answer to the Aging International Space Station: The Tech Behind Tiangong | WSJ emphasizes after 03:26 that Tiangong's ...
user avatar
  • 148k

1
2 3 4 5
21