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 radar-trackable steel ball was thrown from the ISS before October 2015? [duplicate]

The question What kinds of things have been tossed out of the ISS? contains a now-rotted link to a YouTube video of a steel ball being thrown from the ISS for radar tracking tests. I'd sourced it from ...
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Leaving the ISS orbit

Working on a project of sorts and I can't wrap my head around this at all., have a question regarding leaving the ISS orbit. If, let us say as an example, an astronaut jumped out of a capsule which ...
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Are pictures taken from ISS geolocalized?

I guess my question is "naive". I get from https://images-api.nasa.gov some pictures of Earth from ISS without any description (just the mission number) or pictures of crewmembers. Taken ...
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When sending astronauts to the ISS, how does each spacecraft sense the other?

When spacecraft with astronauts tries to dock with the ISS, are there special sensors in each used to track the other? Does one usually do the detection, tracking and orientation in order to "...
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Did the people aboard SpaceX Dragon Crew-1 flight pilot the Dragon or were they just passengers?

On November 15, 2020, four astronauts left Cape Canaveral for the ISS about the SpaceX Dragon Crew-1 mission. Did any of them fly it or were they simply paying passengers in a space craft that ...
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Does the SpaceX Crew-1 commander have any command duties while docked at the station?

The SpaceX Crew-1 mission itself has a commander who is in charge, I suppose, during transit and landing. The ISS also has a commander. Does the commander of crew 1 have any command duties while ...
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If the ISS went to the moon, what would fail first

If the ISS was propelled into an orbit (any orbit) around the moon, what would fail first?
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Russian Chibis suit

The Russian Chibis suit is operational since 1971 and is used aboard the ISS, are there recent developments in this technology? How effective has it been found in counteracting the tendency of fluids ...
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How is CO₂ scrubbed from the air in a space vessel?

Within a space vessel such as the ISS for example, how do the astronauts regulate the level of CO₂ they are breathing and how is the air scrubbed exactly?
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How do US citizens vote in space?

Astronaut Kate Rubins tweeted that she has voted while being on the ISS: How does that work? Did she have some paperwork with her that she can send down to earth with a spacecraft soon? The ...
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How to get ISS trajectory information after spaceflight.nasa.gov has been taken offline?

The nasa spaceflight website states that it will soon shut down. I don't know how long this disclaimer has been there so maybe this is nothing to worry about... In any case, which different ways do ...
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Would standard rackmount electronics fit on an International Space Station rack?

A lot of commercially-produced electronic equipment is designed for a 19-inch rack (or less commonly, 23-inch) with a particular spacing for mounting holes. Much of the pressurized volume of the ...
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Can they still make espresso on the ISS? If so, with what?

This comment suggests that the origional ISSpresso machine may no longer be running on the ISS. Is that so? If so, can they still make espresso on the ISS? If both are so, with what do they make it?
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Tea bags to find the leak on the International Space Station?

Katya Pavlushchenko (@katlinegrey)'s tweet says: Here’s some of today’s news from the ISS. First of all, the leak was finally found (thanks to the tea bag). Anatoly Ivanishin sent photos to the ...
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Does the door of spaceships such as ISS have locks? [duplicate]

Locks in the sense of keys and locks, not airlocks. Is there any international standards for such locks?
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Unix Epoch in International Space Station

The International Space Station is in a different gravitational field than us on the Earth's surface. Almost all computers / protocols depend on the Unix epoch being consistent everywhere. The Unix ...
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Why will the Soyuz MS-17 be relocated on the ISS?

According to the Soyuz MS-17 Wikipedia page, the spacecraft is planned to relocate from Rassvet nadir to Poisk zenith on 10 March 2021. This 3 weeks before the next Soyuz, MS-18 arrives. From ...
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Do the Shuttle/ISS EMU suits have model numbers?

Early NASA spacesuits were given model numbers, as described in slide 3 of this NASA Powerpoint. The model numbers were assigned in the format P-#M, where the ...
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How often has the Hitchhiker's Guide to the Galaxy been in space?

I came across an answer saying that a copy of the Hitchhikers Guide to the Galaxy was sent to space in Elon Musks roadster (in 2018). Has the book been in space before that (maybe taken to the ISS by ...
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How are the Archival Samples of water on the ISS handled?

This answer includes this schematic showing the overview of the water processing system on the ISS, found on page 341 (page 375 of the pdf) of The International Space Station - Operating an Outpost in ...
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Is the silica gel used in the ISS recycled?

I read this answer which raises the question of what happens to the silica gel used in the ISS once it has absorbed humidity. The ISS relies on silica gel to absorb humidity from the atmosphere to ...
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What happens to astronaut sweat on the ISS?

Does perspiration from the astronauts aboard the ISS stick to the skin, evaporate or somehow float away from the skin? Is the part of the sweat that sticks to an astronaut's skin kept there until they ...
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How are Kounotori modules unbolted? Who or what does the unbolting?

NASA Spaceflight's Final JAXA H-II Transfer Vehicle bids farewell to ISS says: Following CBM vestibule depressurization, 16 bolts that held the Kounotori 9 spacecraft to the Station were removed in ...
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ISS Docking / Undocking schedule availability

Is there a website or other API from where the ISS planned docking / undocking events could be available? I would also be interested in historical docking undocking events. Thank you very much in ...
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Taking custom software or hardware to the ISS

Before departing to the ISS, astronauts are allowed to pack some personal objects to be taken with them (see other question about packing). What if an astronaut had some self-written software (for ...
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Could the Crew Dragon be used to re-boost the ISS?

In an answer to a related question, Jörg W Mittag wrote the following: But more importantly, handling of the Superdracos is currently rather simple. They are safed after reaching orbit and then never ...
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Can Virgin Galactic's Orbital ship reach ISS

We have all come across theories, concepts proposed missions of orbit tour as a part of space tourism. One such company is Virgin Galactic. I have had read that the SpaceShip2 will have merely 6 mins ...
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What happens to the ISS waste? [duplicate]

How is the waste managed on ISS? I guess there are three main waste types: two human waste (liquid and solid) and various packaging for food and substances for experiments. Are they recycled or sent ...
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How much time it takes for the capsules to descend from ISS back down to Earth?

How much time it takes for the space capsules to descend from ISS back down to Earth? Soyuz, Dragon, Crew Dragon, Cygnus, European ATV and Japanese HTV and any other such craft. From the moment they ...
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Are there really “Dead End” signs on the outside of the International Space Station?

This question currently links to the NASA video Expedition 63 Inflight interview with Yahoo Finance KPRC TV - July 24, 2020 at 07:46 where a few seconds later ...
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Whats wrong with the camera in recent ISS videos?

In recent videos from the ISS, specifically videos after the recent Demo 2 docking, there are what seems to be little particles stuck inside or on the camera lens. I am wondering, is this damage from ...
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Was TORU really used on Salyut space stations

Digging a little bit in history of russian space technology, I stumbled over some inconsistencies regarding the TORU system. TORU (rus. Телеоператорный Режим Управления - Teleoperated Mode of (...
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Specifications on ISS EVA suit cameras

The suits that astronauts use to preform EVA's on the ISS have some sort of "TV camera" with which they stream analog video back to the ISS and then back to Earth so that we can see it on ...
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Would a higher air pressure on the ISS or elsewhere make it easier to “swim” in microgravity?

What if the atmospheric pressure onboard the ISS was 5 atm, 5 times the pressure on Earth and currently on the ISS, while maintaining the breathable oxygen level, e.g. if the additional atmosphere ...
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What is the blue and purple glitter dinosaur above NASA astronaut Robert Behnken in this video?

The NASA video Expedition 63 Inflight with New York Times, Fox News, and USA Today - July 7, 2020 includes NASA astronaut Dr. Robert Behnken, and above can be seen a blue and purple glitter covered ...
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Was the ISS closer to Baja California or California when this ISS press event started? When exactly did it start?

The NASA video Expedition 63 Inflight with New York Times, Fox News, and USA Today - July 7, 2020 begins with NASA astronaut and Expedition 63 commander Christopher Cassidy discussing with an ...
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Any official size for the ISS pizza box?

I still haven't found the official size of the ISS pizza box[1] and a search on the WEB doesn't help: "30 miles deep and 30 miles long around the space station": https://www.vice.com/en_us/...
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Plans for HUD in next-generation spacesuits

A HUD (Head Up Display) allows a computer to display information directly into a user's line of sight and thus allows them to interface with that computer without needing to look at a tablet or ...
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Duration of SpaceX Demo-2 mission

I've read that the duration of the current SpaceX demo mission to the ISS and back is highly variable. It was originally estimated they could be on-board the ISS from 1 to 4 months, and currently ...
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On the ISS what is that frame with a criss-cross of rubber bands?

You can see below a picture of Steven Swanson doing a detailed tour of the ISS. I was wondering what is that frame with rubber bands on the right? It just seems to block access to the racks behind. ...
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What typically gets sent to the ISS?

I'm working on a project that aims to understand what is needed to live in space. I understand the basic concepts and vital items needed, but I'd love to see a direct example of what is already being ...
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What is it like for ISS astronauts to re-adjust to the Earth's gravity?

ISS expeditions last up to half a year, as long as a flight to or from Mars would last. Here I answered to a question dealing with the adaptation of Martian visitors from microgravity to Martian 0.38 ...
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Effects On ISS Orbital Mechanics Resulting From Added Mass Of Dragon Capsule Visit

Does the ISS require any type of orbital mechanics management once the Dragon capsule was confirmed with a positive airlock seal, and the mass of the spacecraft, 2 additional astronauts, and supplies ...
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How, specifically, are ISS audio comm loops “privatized”? For example, in private medical conferences?

The paper International Space Station Medical Operations mentions Private medical conferences (PMCs) are conducted regularly and upon crew request with the ISS crew via private audio and video ...
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Do non-American space travellers train on Dragon capsule as well?

Soyuz is a spacecraft which still uses technologies from soviet era. The Dragon capsule is state of the art with its electronic upgrades. With Russia and US sharing the International Space Station ...
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Do astronauts on the ISS ever secure unpressurized cargo with an EVA to then be brought inside through an airlock?

Spacex's Dragon and JAXA's HTV are currently the only vehicles that can bring unpressurized cargo in addition to the pressurized one inside the vehicle. In the odd event that the ISS urgently needs ...
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What is the specified procedure to follow if there is a fail to create an airtight seal during hard dock?

I was watching the docking process of Dragon to the ISS including both the "soft dock" process, which was then followed by the hard dock involving 2 sets of 6 locking mechanisms. I believe I'm ...
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Do crew movements or movement of other objects ever affect space or Earth observation experiments staged on the outside of ISS?

The ISS serves as a platform for both Earth and astronomical observational instrumentation. Do routine movements of the crew or other objects ever cause problems for these observations through ...
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Do the ISS docking ports require maintenance?

Is it neccessary to maintain the docking ports of the ISS? Inspection, cleaning, lubrication, replacement of worn out parts like O-ring seals? Where are the seals, on both sides or only at the ...
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Are there any differences in docking procedures between ISS and manned capsules vs. unmanned capsules?

The Russian Soyuz has an extensive history in docking with ISS with both manned and unmanned capsules. SpaceX just recently demonstrated manned-capsule docking with ISS with a history of unmanned ...

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