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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233 views

ISS location identification; estimate size and direction of astronaut acceleration puzzler

note: This question addresses the same video and phenomenon described in this answer (which I found after posting this) but here I'm asking for an analysis of the trajectories of the test masses (the ...
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73 views

How are airborne particulates monitored on the ISS? Are they distinguished at all by size and/or type?

The question What kinds of activities, experiment and, procedures done on the ISS must be done in chambers vented to space? links to and quotes from this answer to the 3D Printing SE question How is ...
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204 views

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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125 views

ISS business venture cost?

How much would it cost for a business to place some self-maintaining electronic equipment aboard the ISS? Would it be a monthly fee, or a one-time transportation and installation fee? Would that ...
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381 views

Why does N2YO list Tiangong 1 as an ISS satellite? Is it just a mistake? yes/no?

The page http://www.n2yo.com/satellites/?c=2 which lists "ISS SATELLITES" includes Tiangong 1. Since it looks to me like all of the other objects are associated with ISS, and Tiangong 1 is a different ...
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121 views

Physical effects of microgravity

Astronauts experience increased blood to the upper body as well as optical problems while in a state of free fall being in a micro gravity environment. My question is whether they would encounter ...
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1answer
453 views

ISS observation and orbit plane

My city is a bit to the north of ISS orbit's northmost point (inclination is 51°, my city is N55°). I observed ISS around 23:xx in summer at its heighest point over horizon, 45°. I supposed that the ...
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414 views

Could a Mars return mission go directly back to the ISS?

I was reading a FAQ on Mars missions when I came across the following snippet: NASA does have the rocket technology to get humans to Mars. However, current technology is not advanced enough to get ...
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288 views

Parachute on the ISS [closed]

If a large parachute were attached to the ISS, how long would it last? I know that there is very little atmosphere where the ISS orbits, but also that the atmosphere is thick enough that it needs a ...
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103 views

Difference between “undock” and “depart” (SpaceX Dragon Mission 1); when did it leave?

Reading the Astronomy SE question Did I see the dragon capsule on Friday night? I thought I'd check some times. Wikipedia's SpX-DM1 says: ...
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64 views

What optical design is used by the GEDI's receiving telescope and how is the secondary held in place?

GEDI is a sophisticated LIDAR instrument now on its way to the ISS. Once installed, it will use powerful laser pulses (10 mJ, 242 Hz) from several lasers to map height in 3D, collecting multiple ...
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206 views

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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163 views

Were there special circumstances leading to these astronauts' spacewalking 5 days after arrival at the ISS?

@This answer describes two cases where astronauts performed space walks less than six days after arriving at the ISS; Timothy Kopra (Expedition 46) Andrew Feustel and Richard Arnold (Expedition 55) ...
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157 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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338 views

Post-shuttle, “Have any animals that have been studied onboard the ISS come back alive?”

The nicely and carefully written questionHave any animals that have been studied onboard the ISS come back alive? has an affirmative answer that applies to the space shuttle. Now that return to Earth ...
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1k views

Where do the crew sleep on the ISS? Where are the sleeping quarters?

The ISS currently handles a crew of 6 launched by two Soyuz vehicles. With the advent of Commercial Crew bring 4 a mission, the hope is to run a crew of 7. Where in the ISS do the crew sleep? The ...
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1answer
610 views

Why does the ISS use longitude and latitude to specify its position?

I'm using an API from NASA on this URL: http://api.open-notify.org/iss-now.json It gives me the location of the ISS as a longitude and latitude. How can I find it's position in space?
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353 views

What is the delay of the YT live stream for ISS?

On YT, we can see a live stream from ISS. What is the delay here (given you have a modern high speed internet access)?
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362 views

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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27 views

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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36 views

Why are the big solar panels on the ISS orientated away from the Sun? [duplicate]

While looking at this picture below from another question I notice all the panels are not facing the Sun. Why is that?
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43 views

Iron powder reaction in chlorate candle [closed]

When a sodium chlorate candle is ignighted, the iron powder is burned to allow the oxygen to be released with the reaction 2NaClO3 → 2NaCl + 3O2 The iron powder is not included in this equation, and ...
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59 views

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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71 views

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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67 views

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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39 views

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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115 views

If the ISS hull were ferromagnetic what kinds of problems would that cause?

The question ISS Electromagnetic anchoring asks if the hull of the ISS were ferromagnetic, which would allow astronauts on EVAs to use magnetic grapples to assist in moving around. The answer sadly, ...
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99 views

what brand/make is the laptop articulated arm in sleeping pod?

I saw a video of Sunny Williams she moved the laptop around. Go to time position 1:34. Is this articulated arm available to purchase for consumers on Earth?
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107 views

How does one estimate the time until ISS enters/leaves darkness with available data [closed]

I'd like know how sites like helloearth.us or satflare.com/iss calculate the time until the ISS enters/leaves darkness (sunrise/sunset).
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174 views

If the ISS let out all it's air in retrograde, would the resulting force be enough to deorbit it? [duplicate]

So I was watching the Martian and in order to get the rendezvous speed down they let out cabin air to provide a force to slow down. I was wondering if somehow all the air escaped the iss in a ...
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154 views

What kind of lighting does the ISS use? [closed]

Is any feng shui used in lighting? Is the best light bulbs used with filters?
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3answers
610 views

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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410 views

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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102 views

What are the regulations about ISS access for research?

Are there any laws regulating access to the International Space Station for an Indian company, for research such as microgravity tests?
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201 views

China. Its very own modular spacestation

China future plan for spacestation after the lost testbed are more and more turning into reality by time. Now with Long March 5/7 success when will China launch its spacestation and how will it differ ...
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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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93 views

What kinds of activities experiment and procedures done on the ISS must be done in chambers vented to space?

This answer to the question in 3D Printing SE How is 3D printing done in space? says The first big space-specific issue is actually air quality. You can't just open a window to air out the molten-...
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55 views

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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72 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 ...
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78 views

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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Average cost of SpaceWalk [duplicate]

How much does it costs NASA for an astronaut to perform a single spacewalk? Not including salary just the cost of actually sending someone into space.
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286 views

What will the new rules, guideliness, and safety measure be for the ISS after NASA kicks out Soyuz?

Will US Policy be that there should be two Boeing CST-100 Starliner or SpaceX Dragon V2 craft attached to ISS at all times for the American segment of the station? Will Soyuz continue to be used?
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282 views

Orbit decay, why gravity doesn't increase 'vertical speed'

To use some reference let's take the ISS. The ISS has an orbital speed of 7600m/s. At the altitude of the ISS ~400km the force of the gravity it's about 8m/s2. It will take about 16 minutes to the ...
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322 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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282 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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440 views

Whats with all the ISS camera troubles?

Why don't the ISS cameras ever experience technical problems at night? I never have seen the banner flash on the screen stating they are experiencing technical difficulties or switching cameras. Also, ...