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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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No reboosts for the ISS

The graph shows the ISS semi-major axis. There are no reboosts for an unusually long period of time and according to https://spaceflight.nasa.gov/realdata/sightings/SSapplications/Post/JavaSSOP/orbit/...
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Can I freshen my clothes on the ISS with a clothes line?

There are a number of questions about washing clothes on the ISS, the short answer is that they do NOT wash them. Nudism in space: Why wear clothes anyway? Washing clothes in space: are there any ...
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Are there any pictures of Iridium flares from the ISS?

As the title states, are there any pictures of Iridium flares from the ISS? Related: How much longer will we be able to see Iridium satellite flares?
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How many ships are ready to launch? [duplicate]

In the wake of the Russian launch failure to send more astronauts to the ISS, it got me thinking. How many "ready to fly" ships are there? And, if an accident were to happen and the current ISS crew ...
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How do you replace an ISS window assembly on orbit?

The eoPortal document Cupola Observation Module of the ISS found in @Dragongeek's answer to What are the two orange tabs stuck on opposite edges of each window of the ISS cupola? has some interesting ...
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What are the two orange tabs stuck on opposite edges of each window of the ISS cupola?

The YouTube video ONE OF THE MOST DETAILED ISS TOUR!!! is cited in several Q&A here, and shows a tour and explanation of the ISS by astronaut Steven Swanson. Today I noticed between ...
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Data and information security aboard the ISS in terms of public photos?

I was looking through a couple posts that had on-board pictures of the ISS and noticed something almost immediately: They have information (which could be sensitive) shown on the laptops: While ...
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Can astronauts on an EVA communicate directly with ground stations?

Can astronauts/cosmonauts performing spacewalks at the International Space Station communicate directly with radio stations on the ground (even if only as a back-up)? Or do they need to relay their ...
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1answer
47 views

How does the HTV Small Return Capsule get used?

The HTV Small Return Capsule (HSRC) is on the HTV-7 mission to the ISS. It is a sample return, small capsule, shaped as you would expect, like a small Apollo/Orion/Dragon shape. It is shipped up ...
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What is a four-orbit rendezvous? [duplicate]

In a book I'm reading, there is a sentence like this: However, such a long rendezvous is cramped, uncomfortable and not the most efficient use of time for astronauts or Mission Control, and so ...
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1answer
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How are cameras arranged and used to monitor activities outside the ISS?

Questions like Does the ISS have zenith-facing windows? and also Does the ISS have any ability to detect or sense unexpected/unscheduled objects in close proximity? have also been asked about ways to ...
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1answer
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What if an ISS astronaut refused to leave the space station? [duplicate]

When a mission to the ISS ends and the astronauts/cosmonauts shall leave the ISS with the Soyuz/Dragon spacecraft, what if an astronaut refuses to enter the Soyuz? What if he/she wants to remain on ...
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1answer
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How closely can ground control monitor ISS astronauts?

How closely can ground control monitor astronauts aboard the ISS. Are there cameras or microphones that the ground can use to see and hear what's happening, or are they reliant on the crew to relay ...
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1answer
114 views

Is ISS ever visible at all on the earth, unaided, by full moon moonlight alone?

Assuming ideal conditions of moonlight and phase angle, is the ISS ever even slightly 'visible' by full moon moonlight alone, that is to say, when the station is not in direct sunlight at all, but ...
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Would adding a long pole to the International Space Station keep it from tumbling via gravity gradient stabilization?

What things can be done mechanically to make the ISS more stable in a dormant state without a crew? I have listed a couple of links that may work, but I am open for constructive criticism and new ...
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Would recovery from these three problems on the ISS each require astronauts on board?

YouTube auto-played this to me after Scott Manley. I don't really recommend this channel as there are a lot of small errors due to the speaker's unfamiliarity with the science and mis-speaks like ...
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Has the answer to PopSci's question “How Many Years Does The Space Station Have Left?” been published?

This answer to the question Why does the ISS have to be destroyed? begins It doesn't, not really, but there will come a time when it will simply not be worth keeping it up. and mentions a study, ...
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What is the likely plan to deorbit the ISS given its size and shape?

The ISS is nearing its final years and this question spurred me to ask a follow up. Let's say that the various countries grab whatever equipment/modules they provided in assembly and the ISS is ...
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1answer
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When was the ISS's “SPEED LIMIT 17500 MPH” sign originally posted?

When was the ISS's "SPEED LIMIT 17500 MPH" sign originally posted? above: "STS110-353-012 (8-19 April 2002) --- Astronaut Ellen Ochoa, STS-110 mission specialist, poses by the speed limit signs in ...
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How exactly will the ISS die in 2025?

According to: ”Moreover, the ISS end of life might come in 2025, and assuming you need a few years to graduate, more to get a degree, work experience, get hired, do the training... The ISS might ...
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Has the ISS done any experiments on animals gestation such as mice? I particularly would like to know about embryo development in microgravity

Has the ISS done any experiments on animals gestation such as mice? I particularly would like to know about embryo development in microgravity
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Is there an onboard video of the Soyuz MS 10 launch?

Does anyone know a link to the video obtained from the Soyuz "outboard" camera showing the separation of the side boosters of the Soyuz MS10 launch?
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What brand and model is the hand-held sextant tested on the ISS?

Astronaut Alexander Gerst is testing an hand-held sextant on the ISS in the context of the experiment Sextant Navigation for Exploration Missions, see picture below. What is the brand and model of ...
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1answer
114 views

Could the International Space Station be fitted with solar sails?

How much solar sail and vane surface area would be needed to replace the boosts needed to keep the ISS in orbit? Could this be done at a higher orbit minimizing atmospheric drag? What is the closest ...
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What are the consequences of leaving ISS with no crew? [duplicate]

To my knowledge temporarily abandoning the ISS is one of the possible options. (Though not the most probable one.) If left peopleless, how long can it stay in orbit without proper maintainance and ...
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Which Earth time zone most closely matches the ISS astronauts' daily schedule? [duplicate]

The astronauts on the International Space Station have a daily schedule, particularly when they are asleep versus awake. Which Earth time zone is closest to their daily schedule? What time zone is ...
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What are the reasons Soyuz's lifespan in orbit is limited?

Following the recent Soyuz failure news, I found out that the currently docked Soyuz expires in the foreseeable future, leaving the crew with no means to return back to Earth. What are the reasons ...
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1answer
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Where can I find detailed information on spacewalks?

I am looking for detailed (as detailed as possible) information on the various space walks carried out on ISS. If I can get minute-by-minute steps taken, which bolts were turned, which wires were ...
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338 views

How would the International Space Station be maintained unmanned?

Russia's lunch to the ISS failed and the crew may have to leave it unmanned. How would the ISS run without a crew? Could some one else take it over or squat in it? https://www.npr.org/2018/10/11/...
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Is this a photo of today's Soyuz anomaly happening in flight seen from the ISS? What are the little dots?

ISS Exp. 57 Cmdr. and ESA Astronaut Alexander Gerst's Tweet today says: Glad our friends are fine. Thanks to the rescue force of >1000 SAR professionals! Today showed again what an amazing vehicle ...
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2answers
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What eliminates the velocity when occupants return from ISS to earth, and how much?

The ISS has an orbital velocity of ~28000 km/h; the velocity $v$ relative to the landing site of the descent module is probably even higher than that most of the time. Once the occupants have landed, ...
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1answer
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Can crewed rocket programs be accelerated in light of the Soyuz failure?

This morning a crewed Soyuz booster failed, causing the crew to return to Earth, as the capsule was not in orbit yet. With this being the second failure of a Soyuz rocket in two years (a Dec 2016 ...
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How can I, a high school student in Bucharest, go on to become an ISS astronaut?

I study at a High School in Bucharest, and I want to know what kind of education or subjects I need so that I can work in an International Space Station and stay there for 6 months. In the high ...
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Will SpX-DM1 (Crew Dragon demo mission) carry any useful cargo (supplies)?

To adequately simulate crew transport, the Dragon 2 should at least carry mass simulators of mass equivalent to that of the astronauts. Will it? Will it be dummies or some useful cargo? Would be a ...
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Does the International Space Station get TV?

For obvious reasons the ISS cannot get cable TV. Can the ISS get the new digital air TV or satellite TV using an issued dish and receiver like a house? How would that be done compared to how it is ...
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How is the docking hatch on the Progress/ATV opened?

Normally during the Progress or ATV hatch opening procedure the crew inside the ISS turn a handle to unseal the SSVP drogue cover which they then pull inward, revealing the Progress docking probe and ...
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1answer
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Do astronauts have to use sunscreen?

Of course the space suits can block most part of the radiation, but do the astronauts need to use sunscreen to protect their faces from the radiation passing thought the helmet or passing through the ...
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1answer
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How does this ISS vision-testing instrument work? What exactly is being measured, and how?

This tweet by Surrey Satellite engineer Enguerran Petitfils says Astronaut Serena Auñón-Chancellor Examines Her Eyes via NASA https://ift.tt/2NmEt6k What is this device exactly, how does it work,...
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This image of the Space Shuttle is truly beautiful, but is it real?

I saw this image in the Infobae article La NASA probará un paracaídas para posar naves espaciales en Marte ("NASA will test a parachute to place spaceships on Mars"). The image looks plausible to me, ...
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Is this window zenith-facing? (ISS docked Soyuz) If so, how directly?

Pursuant to the question Does the ISS have zenith-facing windows? to which the conclusion (in my opinion) is that there may be a window that provides an oblique view that might include the zenith if ...
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How many leaks have been fixed on the ISS, roughly?

Leaks come in all sizes. Very small ones might be ignored or remain undetected, slightly faster ones might be identified and dispositioned; if they are slow and going to remain stable, they might not ...
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What is the big hole next to the 2mm hole that caused the 2018-08-30 Soyuz MS-09 / ISS leak?

The small hole in this picture is being reported as the cause of the ISS leak. What is the large hole next to it on the perpendicular surface? The one that appears to have been drilled by an amatuer ...
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What are these antenna-like structures seen in Oleg Artemyev twitter video?

Russian Cosmonaut Oleg Artemyev's Sept 3, 2018 tweet has a narrated video of Earth from the ISS, at the time over the Nile river. The video is also in YouTube (below). At the bottom of the screen, ...
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How does automated docking work and why isn't it used more often?

It seems on every flight to the ISS for either people or just cargo, there is always a big deal over manual docking, lots of back and forth over comms, pinpointing the right spot, slowing down in a ...
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How could the 2018-08-30 Soyuz MS-09 / ISS leak be so slow?

The leak reportedly led the ISS to lose 0.8 millibars of air pressure per hour, which is both big considering what was at stake and low for a 2-mm hole when the outside is near to complete vacuum. Am ...
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Did NASA “publish”, then “delete” this and other photos of the ISS leak?

A tweet by @NASASpaceflight (Chris B - NSF, "Managing Editor of NASASpaceFlight.com" says: ISS Leak summary: First thought was MMOD strike. Then NASA released pics. Lots of people: "Hmmm,...
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How far/much time could an appendage extend outside of the ISS before succumbing to severe damage?

I was reading the question asked here in regards the Alexander Gerst's patching of a small (5mm) hole with his thumb temporarily. This got me wondering, if his thumb was only fine because the majority ...
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Was Alexander Gerst the first man to touch space with his bare skin and live?

On August 30, 2018, a hole was found in the Soyuz Orbital Module on the ISS. Astronaut Alexander Gerst initially plugged it with his thumb, meaning a part of his bare skin touched space. I can't find ...
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Is telerobotic surgery logistically feasible in orbit?

A recent comment said telerobotic surgery might be used in space, a follow up comment said that multiple minute light delays would complicate it. But I wonder if just the fact that being in orbit, ...
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1answer
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Do Astronauts have their appendix removed?

A recenct article on the BBC news got me wondering about Astronauts in the ISS. technically they are fewer miles from the closest hospital, but the transportation is bit more complex. Imagine that ...