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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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What does “183 tonne” in this sentence refer to?

I would like to know the meaning of a sentence below: "While docked, the ATV will perform ISS attitude control, debris avoidance manoeuvres and raising of the 183 tonne station's orbit to overcome ...
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1answer
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What would happen to the ISS if we stopped maintaining it?

What would happen if the astronauts on the ISS stopped maintaining it, and no further vehicles or remote control commands were sent up from the ground? I'd like to know what systems would stop working,...
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2answers
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Can we detect the projected ISS shadow on the earth surface

Looking at an ISS transit picture: I started wondering wether we could see the ISS shadow passing on the earth. My intuition tells me that it would be impossible with the naked eye, but do we have ...
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Why is the ISS pressurised to 1 atmosphere? [duplicate]

I had a thought about what the operating air pressure of the ISS would be. I was surprised to find it is 1 atmosphere or 14.7 psi. Given that airliners fly in the lower atmosphere but pressurise ...
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2answers
302 views

ISS impacts by space debris

Is there something that tracks the locations of space debris impacts, and how big the debris or damage is?
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2answers
256 views

Can satellites or the ISS be seen from Earth during a Total Solar Eclipse?

If there is a satellite or the ISS passing by over a point during a total solar eclipse in the darkest region, will the satellite be visible by naked eye or a pair of binoculars, since it will be dark ...
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0answers
65 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 ...
7
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1answer
441 views

What are the orbital mechanical consideration behind hand-launched nanosatellites from the ISS?

The NASA Spaceflight article Extended Russian EVA complete – conducts satellite deployments says: The first order of the day was for Ryazanskiy to head into the manual deployment of five ...
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4answers
882 views

How many stations could one hear with an AM/FM radio in front of the ISS' cupola window?

Propagation of AM and FM radio signals up into the sky would behave differently than propagation along the surface of the Earth. As a Gedankenexperiment, if you were on the ISS and had an AM/FM radio ...
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1answer
376 views

What is the purpose of red / white lights in ISS / SpaceX Dragon docking?

I'm watching the live TV from NASA broadcasting the ISS / SpaceX Dragon docking and I've seen a red light and a white flashing light. See them at the bottom of this image . What are they for?
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10answers
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Why isn't a centrifuge used for astronauts on the space station?

One thing I've always wondered is why don't astronauts sleep in a kind of rotating bed that spins creating force? This would allow them to sleep and would be able to simulate earths gravity. Why don't ...
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1answer
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ISS Interim Control Module Specifications

Anybody have a copy of the specifications for the Interim Control Module? Particularly interested in mass, either dry or fully loaded...or both!
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1answer
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Why do they believe that the Bigelow Expandable Activity Module has “taken a hit”?

In NPR's news item After A Year In Space, The Air Hasn't Gone Out Of NASA's Inflated Module there is a quote that's interesting: "We do believe we've taken at least one hit," says Crusan. "Very ...
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3answers
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ISS Speed required for true geosynchronous orbit

How fast would ISS need to travel at the current altitude (LEO 250mi) to be geosynchronous with say 36 degree N lattitude?
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1answer
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Is this ginormous porthole a permanent feature of the ISS or “just passing through”?

This tweet from Expedition 51/52 astronaut Jack Fischer admires the great view straight down from the ginormous Russian porthole of the Progress cargo vehicle on the ISS. I don't really understand ...
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1answer
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How should the ISS telemetry for attitude be converted to roll, pitch, and yaw?

NASA, via Lightstreamer SRL, provides four "quaternion components" for the International Space Station's current attitude. These are labelled USLAB000018–21 and described as "US Current Local Vertical ...
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1answer
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Observing ISS from the earth

Is this the ISS from Antalya, Elmali, 23.7.2017 morning around 03:00 hours? Photo 4 frames of 30 seconds each, with 1 second in between each frame, all images superimposed with star movement taken ...
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5answers
396 views

ISS achieving lift by using it's solar panels

Can the ISS achieve any lift by using it's solar panels as 'wings' against the sparse atmosphere? My understand is they started moving the solar panels into a 'low drag' orientation when on the ...
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2answers
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How much does a cordless screwdriver for space cost?

I wonder how much a cordless space screwdriver costs and what its mass would be? I guess it would be a lithium-ion screwdriver, like on Earth, but would it have other specifications? Does anybody ...
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0answers
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Can you get a cold in space? [duplicate]

Awesome place! I wonder, can you get a cold in space that needs antibiotics? Specifically, after some time at the ISS and not carried from earth? If so,do the rest of the crew has to avoid you? ...
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1answer
145 views

Were there any STS missions that included maneuvers that might have photographed ISS's top side?

It looks like this answer is converging on a conclusive answer about a zenith-facing window on the ISS, and possibly also a window which might at least be able to offer a bit of a view of the zenith. ...
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2answers
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What is this tiny articulated dish antenna-like thing on Zvezda?

I spotted this tiny, articulated dish antenna-like thing on the Zvezda module of the ISS while looking around for images for here. It looks like it's associated with and/or pointing in the same ...
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2answers
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Approximate sizes and relative positions of the ISS' cupola windows?

I have an idea for a cool Earth-pointing amateur experiment that could be done through the cupola windows of the ISS. All of them. It would be simple (and not look like the first photo below). Are ...
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3answers
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What dangers are astronauts exposed to when facing the sun?

In this live stream, we have an astronaut facing the sun (we've seen his hands actually): I thought people doing an EVA should avoid the sun at all cost, but here he's facing it. From what kind of ...
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1answer
256 views

Why escape pods activates thrusters when landing on water ?

I am seeing Life (2017) movie, movie showed ISS dropped escape pod to the land, when it reaches certain height, escape pod release parachute & near the water surface, thrusters got activated. you ...
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1answer
366 views

Does the ISS have any ability to detect or sense unexpected/unscheduled objects in close proximity?

In a recent science fiction movie there was a space station similar to the ISS, and it had a "proximity alert". This made me wonder; in the real world, does the real ISS have any capability to ...
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4answers
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Why would a box full of 1cm balls released into LEO be so scary to an engineer supporting the ISS? - (Updated)

update March 2018: I just saw this in Buzzfeed (Google sent me there, I don't normally read it): Rich People Will Soon Be Able To Buy Fake Meteor Showers On Demand. It seems this might happen in 2018. ...
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0answers
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Is it possible to see ISS solar arrays with naked eye, from earth? [duplicate]

I have a friend who swears that he saw the ISS and the arrays sticking out the sides of the bright light. I'm thinking he has cataracts. (We're both of that age.) Is it possible he really did see ...
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2answers
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How did Soyuz MS-04 reach the ISS in only 6 hours?

The Wikipedia Article on Soyuz MS-04 says: It is the first of the Soyuz MS series to rendezvous with the Station in approximately 6 hours, instead of the 2 day orbital rendezvous used for the ...
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2answers
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How many times were there thirteen people inside the ISS? Is it hard on the station?

I just saw this photo in @SF.'s answer It is ISS023-E-023513 STS-131 and Expedition 23. The full caption is below. Are there really 13 people on the ISS at one time? Is STS-131 the only shuttle ...
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2answers
540 views

How long could the shuttle remain docked to ISS and still capable of landing?

Soyuz remains docked to ISS for months at a time, then returns the crew to Earth. The longest the shuttle has stayed in orbit on any single mission is 17.5 days on mission STS-80 in November 1996 ...
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4answers
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Why do ISS crew members often cross their arms?

I am watching live stream from ISS to follow the return of two ISS crew members, Thomas Pesquet and Oleg Novitskiy. At several moments, they crossed their arms in a not really natural way: Why do ...
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1answer
353 views

Are the ISS US Segment solar arrays double-sided?

Some answers on this site claim that the ISS US Segment solar arrays are double-sided (i.e. cells on both sides of the blanket). I tend to doubt this, but a search of my references did not turn up ...
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1answer
146 views

What are the main properties of the CMGs on the ISS

How large (mass) are the CMGs on the ISS? What is the minimum torque they apply? What is the maximum torque they apply?
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4answers
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How do iPads on the ISS know which way is “up” for their users?

The question What makes smartphones tilt-sensitive? Will they retain this ability in zero-gravity conditions? brought to mind the video of astronaut Steven Swanson's detailed tour of the ISS, in which ...
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1answer
146 views

What kind of condition do Orbital Replacement Units (ORUs) keep while mounted on the outside of the ISS?

In a recent question, uhoh asked about a dish mounted on the outside of the International Space Station (ISS): What is the function of this (apparently) fixed dish on the ISS? This turned out to be ...
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2answers
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What is the function of this (apparently) fixed dish on the ISS?

I saw this image in Popular Science, one of the example photos from the book by astronaut/photographer/astrophotographer(?) Donald Pettit. It's beautiful and impressive not only from a color/...
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1answer
2k views

Can astronauts wear eyeglasses inside their helmets during launches and landings?

Are astronauts allowed to wear their eyeglasses inside their helmets during launches and landings?? Are there any special considerations or rules? During spaceflight (launches and landings) there can ...
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What are the disturbing torques on the ISS?

What are the orders of magnitude of disturbing torques on the ISS itself, preferably split into the following categories, but any numbers (with source) will be useful: Gravity gradient Magnetic Solar ...
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2answers
10k views

Why aren't the 'bedrooms' aboard the ISS also the escape pods?

If ISS was designed this way, couldn't the astronauts have a quick escape if the ISS is destroyed (severe meteor shower, re-entry, uncontrollable fire, explosive decompression, etc.) while they are ...
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0answers
239 views

How well can the ISS attitude control system detect periods of astronaut activity?

The question Why doesn't ISS start to spin if people walk inside? is a good one partly because it has attracted several good, informative answers. One of them is particularly intriguing because it ...
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4answers
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Why doesn't the ISS start to spin if people walk inside?

I have read that prior to launch all people and tools are fastened down to prevent a rocket from losing the balance. Why doesn't the ISS begin to spin as astronauts are walking inside of it? Or is ...
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1answer
240 views

Could astronauts wear EVA suits in the Soyuz?

There's a problem with maintaining the EVA suits on the space station. Since the Shuttle was canceled, only recently has Dragon made it possible to bring the suits down to ground for refurbishment, ...
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1answer
182 views

What are these dishes looking at?

In this CSA video CSA Astronaut Chris Hadfield describes the attitude control of the ISS and its importance for things like communication with Earth. At 00:30 here ...
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1answer
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Is there a mockup of the ISS on the ground?

Is there a replica of the interior of the space station on the ground? For training astronauts and to try out equipment installations.
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1answer
242 views

How are soyuz spacecraft adapted to 2 people crew?

Since Russia is going to send only 2 people crew to the ISS for a while, I wonder how will they adapt the spacecraft. Do they remove the 3rd seat ? Can they put extra cargo on theses flights ?
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258 views

Sharing the skies with Russia, for how long? [closed]

Everyone knows that there are tensions with Russia that have existed for years. At what point do they stop cooperating with NASA and the USG in general? Have there never been worries about what ...
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4answers
10k views

Why has the ISS not been left unmanned?

I found this question, and I was wondering why the ISS is constantly manned (Except for some hours during particular situations). Is that a technical problem? Is it to guarantee safety? Or just ...
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1answer
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What is considered the 'map scale' that ISS astronauts view the Earth?

Looking directly down from the ISS, we see essentially a map. I'm working on a project using GIS and would like to use the same scale, e.g. "1:500,000" if someone has done an analysis on it. I can't ...
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1answer
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What are the sizes and locations of Progress's thrusters?

Supposedly the Progress modules used for ISS reboost, attitude control, and debris avoidance have two large engines and some number of steering jets. I know Zarya has 24 large and 12 small in ...