An HD Video Tour of the International Space Station is simple walkthrough of this incredible project and all its corners. This video tour of the International Space Station is an interesting video, but is has also some annoying things on it. It sometimes overuses picture in picture and superimposed images effects in the video. Just because something can be done with a video, doesn’t mean it should be done.
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Tomi Engdahl says:
Five key findings from 15 years of the International Space Station
Primus interplanetary
http://www.theregister.co.uk/2015/12/31/five_key_findings_from_15_years_of_the_international_space_station/
The International Space Station is the longest-running continuously inhabited human outpost in space, and this year it celebrated its 15th anniversary. As the ISS orbits the Earth it is essentially in a state of free fall, counteracting the Earth’s gravity and providing an ideal platform for science in space.
Science aboard the ISS is decidedly cross-disciplinary, including fields as diverse as microbiology, space science, fundamental physics, human biology, astronomy, meteorology and Earth observation to name a few. But let’s take a look at some of the biggest findings.
Tomi Engdahl says:
A cracked window on the International Space Station? That’s not good
Wait til you see what caused it
http://www.theregister.co.uk/2016/05/12/tiny_space_trash_impact_cracks_window_on_international_space_station/
British astronaut Tim Peake has sparked an orbital kerfuffle after he tweeted a picture showing a crack in the International Space Station’s window. It was caused by space debris.
Before everyone jumps into their emergency escape pods however, it’s worth noting that the windows on the ISS are quadruple-glazed with layers of transparent aluminum ceramic composite glass. There’s an inner layer to protect against astronauts scuffing up the windows, two 25mm-thick pressure glass panels, and a thinner outer debris panel. It’s the last one that got dinged.
As to what caused the crack, the European Space Agency said it was probably a fleck of paint that had been shed from an old satellite or booster, or possibly a small metal fragment around a few thousandths of a millimetre across. How is that possible? Because they are travelling very, very fast, and impart that kinetic energy to whatever they hit.
What’s more worrying is that a larger piece of space junk, around one centimeter across could do more serious damage – possibly disabling a satellite or outside instrument on the ISS. Anything larger than 10 centimeters could “shatter a satellite or spacecraft into pieces,” said the ESA.
Tomi Engdahl says:
ISS Completes 100,000th Orbit of Earth
https://news.slashdot.org/story/16/05/16/2248235/iss-completes-100000th-orbit-of-earth
The International Space Station, the space laboratory that showcases cooperation between Russia and the United States, on Monday orbited Earth for the 100,000th time, Russian mission control said. Traveling at an altitude of about 250 miles (400 kilometers) and a speed of about 17,500 miles (28,000 kilometers) per hour, the space station circles the Earth once every 90 minutes.
ISS completes 100,000th orbit of Earth: mission control
http://phys.org/news/2016-05-international-space-station-100000th-orbit.html
Tomi Engdahl says:
NASA Space Station’s top 10 benefits to humanity
http://www.edn.com/design/analog/4442198/NASA-Space-Station-s-top-10-benefits-to-humanity?_mc=NL_EDN_EDT_EDN_today_20160615&cid=NL_EDN_EDT_EDN_today_20160615&elqTrackId=8a9d97a1c17d404fb0a1606dcd5c8fed&elq=3de2f41eeb354d4897926f7f757f0c1a&elqaid=32681&elqat=1&elqCampaignId=28550
How to Get New Research Onto ISS
http://www.nasa.gov/sites/default/files/atoms/files/how_to_do_iss_research_nov2015.pdf
Tomi Engdahl says:
Ok Google. Navigate to the International Space Station
http://hackaday.com/2017/07/23/ok-google-navigate-to-the-international-space-station/
If you’d have asked most people a few decades ago if they wanted a picture of every street address in the world, they would have probably looked at you like you were crazy. But turns out that Google Street View is handy for several reasons. Sure, it is easy to check out the neighborhood around that cheap hotel before you book. But it is also a great way to visit places virtually. Now one of those places is the International Space Station (ISS).
[Thomas Pesquet] in a true hack used bungee cords and existing cameras to take panoramas of all 15 ISS modules. Google did their magic, and you can enjoy the results.
https://www.google.com/streetview/#international-space-station/
Tomi Engdahl says:
International Space Station is Racing the Clock After Soyuz Failure
https://hackaday.com/2018/10/11/international-space-station-is-racing-the-clock-after-soyuz-failure/
Until a full investigation can be completed by Roscosmos, Russia’s space agency, the Soyuz rocket is grounded. This is standard procedure, as they obviously don’t want to launch another rocket and risk encountering the same issue. But as the Soyuz is currently the only way we have to get humans into space, this means new crew can’t be sent to the ISS until Roscosmos is confident the issue has been identified and resolved.
Soyuz MS-11, which would have brought up three new crew members to relieve those already on the Station, was scheduled for liftoff on December 20th. While not yet officially confirmed, that mission is almost certainly not going to be launching as scheduled. Two months is simply not long enough to conduct an investigation into such a major event when human lives are on the line.
The failure of Soyuz MS-10 has started a domino effect which will deprive the ISS of the five crew members which were scheduled to be aboard by the end of 2018. To make matters worse, the three current crew members must return to Earth before the end of the year as well. NASA and Roscosmos will now need to make an unprecedented decision which could lead to abandoning the International Space Station; the first time it would be left unmanned since the Expedition 1 mission arrived in November 2000.
An Expiring Ticket
Soyuz spacecraft docked with ISS
ISS crews are rotated out on a six month schedule because that’s about how long a Soyuz capsule can remain viable in orbit. It has a design life of only 215 days, any longer than that and the vehicle’s corrosive propellants will degrade their tanks. Current ISS crew members Sergey Prokopyev, Alexander Gerst, and Serena M. Auñón-Chancellor arrived at the station in June on Soyuz MS-09, so the clock has nearly run out for their spacecraft.
If Soyuz MS-09 is left attached to the Station past its design life, it will become unusable. In the worst case, it could even start leaking propellant and endanger the Station. The crew would be forced to cut the spacecraft loose, leaving themselves stranded. This is an option that simply will not be considered by either NASA or Roscosmos. Under no circumstances will either agency intentionally leave three humans in space with no way to bring them home.
If nothing changes, the current crew will therefore be forced to depart before their only ride home literally eats itself. This would leave the Station unmanned until Soyuz can be flown again and bring a new crew. As there’s no telling when that might be, this would be a crushing blow to ISS operations.
Sending an Unmanned Lifeboat
There are a few potential alternatives to leaving the ISS without a crew for the first time in nearly 20 years, but given the risk-adverse nature of human spaceflight, it seems unlikely NASA or Roscosmos will want to tempt fate on any of them
Uncertain Future
It’s exceptionally difficult to believe Roscosmos could rush through an incident investigation before the scheduled December 20th launch of Soyuz MS-11, even if the fault is found to be operational and not with the rocket itself. When the unmanned Proton-M rocket was lost in 2013 due to an improperly installed angular velocity sensor, it still look three months for the investigation to clear the rocket for its next flight. Even if the Russian government was content with a truncated investigation, Soyuz MS-11 will have an American and Canadian aboard, so NASA and CSA would surely want time to review the findings themselves.
Tomi Engdahl says:
I’m Sorry, Alexander, I’m Afraid I Can’t Do That
https://hackaday.com/2018/11/24/im-sorry-alexander-im-afraid-i-cant-do-that/
Getting people to space is extremely difficult, and while getting robots to space is still pretty challenging, it’s much easier. For that reason, robots and probes have been helping us explore the solar system for decades. Now, though, a robot assistant is on board the ISS to work with the astronauts, and rather than something impersonal like a robot arm, this one has a face, can navigate throughout the ship, and can respond to voice inputs.
SpaceX delivers CIMON, along with berries and ice cream, at ISS
https://www.digitaltrends.com/cool-tech/cimon-flying-brain-heading-to-space-station/
Tomi Engdahl says:
NASA opening International Space Station to Tourists in 2020
https://theaegisalliance.com/2019/06/09/nasa-opening-international-space-station-tourists-2020/
Tomi Engdahl says:
https://hackaday.com/2020/03/03/expanding-and-eventually-replacing-the-international-space-station/
Tomi Engdahl says:
Docking With ISS Isn’t As Easy As You Might Think
https://hackaday.com/2020/05/15/docking-with-iss-isnt-as-easy-as-you-might-think/
Complexity is a funny thing. In prehistoric times, a caveman might float across a lake on a log. That’s simple. But as you add a rudder, a sail, or even a motor, it gets more and more complex. But if you add enough complexity — a GPS and an autopilot, for example, it becomes simple again. The SpaceX Dragon capsule actually docks itself to the ISS. However, the crew on the station can take over manually if they need to. What would that be like? Try the simulation and find out. If you don’t make it on the first, try, [Scott Manley’s] video below might help you out.
This isn’t a flashy Star Wars-style simulator. Think more 2001. Movement is slow and it is easy to get out of control. The user interface is decidedly modern compared to the old Apollo era
https://iss-sim.spacex.com/
Tomi Engdahl says:
https://hackaday.com/2020/09/10/iss-ham-radio-repeater/
Tomi Engdahl says:
GITAI Sending Autonomous Robot to Space Station
https://spectrum.ieee.org/automaton/robotics/space-robots/gitai-autonomous-robot-iss
Tomi Engdahl says:
All three ISS crew members were moved nearer to the Soyuz spacecraft for an easy getaway, just in case.
The ISS Just Had To Make An Emergency Maneuver To Avoid Space Debris
https://www.iflscience.com/space/the-iss-just-had-to-make-an-emergency-maneuver-to-avoid-space-debris/
The International Space Station (ISS) had to use its thrusters to move out of the way of a piece of space junk yesterday, and NASA head Jim Bridenstine is pissed.
The then-unknown piece of debris was predicted to come within just over a kilometer of the space station, so the ISS changed its trajectory and moved out of its path. NASA said the crew was never in danger, but all three current ISS crew members were moved nearer to the Soyuz spacecraft for an easy getaway as an extra precaution.
After confirming the maneuver was complete and the astronauts were coming out of safe haven, NASA Administrator Jim Bridenstine took to Twitter to point out this was the third time this year the ISS had had to move out of the way of space junk, and the third potential close encounter in 2 weeks.
“Debris is getting worse!” he wrote.
Tomi Engdahl says:
The ISS leak “appeared to grow in size,” according to a NASA spokesperson.
NASA Says the International Space Station Is Leaking Faster Now
https://futurism.com/the-byte/nasa-space-station-leak-faster
In August, NASA detected a leak on the International Space Station. What followed was several weeks of investigation, including the isolation of crew members into one of the station’s Russian modules as an extreme precaution.
Ironically, NASA now believes the leak is located in the main work area of the Zvezda Service Module, the same one that was used for the evacuations.
Tomi Engdahl says:
ISS? More like HISS, am I right? Space station air leakage narrowed down to Russia’s Zvezda module
Also: Scrubtember becomes Abortober, and the worm returns once more to NASA
https://www.theregister.com/2020/10/02/space_in_brief/
In brief The location of the air leak from the International Space Station (ISS) has been identified. According to Russia’s Roscosmos, it is in the Zvezda Service Module transfer chamber.
While not an imminent threat to the crew’s safety, the usual seepage of air has grown in recent months, necessitating a hunt for the culprit. The crew had already checked the US, European, and Japanese modules, and had kicked off work in the Russian segment, closing hatches between Zvezda’s aft and forward sections, and collecting data with an ultrasonic leak detector.
The next challenge will be to identify exactly where the leak is located now that the gang has narrowed things down to a specific area. At its current rate, the leak poses no immediate danger to the crew, according to NASA.
Tomi Engdahl says:
Rechargeable batteries enable greener electronics
https://www.edn.com/rechargeable-batteries-enable-greener-electronics/?utm_source=newsletter&utm_campaign=link&utm_medium=EDNWeekly-20201015
While batteries provide untethered power, enabling convenience, dependability, and mobility, environmental responsibility suggests that rechargeable batteries have the same benefits, but can save money while reducing the amount of waste. This article examines the benefits offered by rechargeable battery technology, enabling us to make life better.
The technological hardware we use is greatly enabled by the physical phenomena of electrical charge in motion—electricity. Alternating current (AC), which moves bidirectionally, is useful for sending power over vast distances because of its simplicity in changing voltages through the use of transformers. On the other hand, direct current (DC) is a unidirectional current where electricity moves from a negative terminal in the direction of the positive terminal. One of the unique features of DC is that it can get stored for later usage.
International Space Station (ISS), working diligently to replace various DC batteries (Figure 1). NASA reported the astronauts were “swapping five aging nickel-hydrogen (NiH2) batteries with two new lithium-ion (Li-ion) batteries” and later moved on to swap one more NiH2 battery for a Li-ion battery on the Starboard-6 truss structure worksite. Rechargeable batteries allow us to be unplugged even into the vast domains of space.
Besides allowing us to go unplugged, secondary batteries are rechargeable and can be recharged repeatedly. One important ramification of this is that battery costs must be reevaluated over time. In many cases, primary batteries are less costly to purchase. However, when the amount of current consumption is calculated over time, the need only to buy a secondary cell initially and then get many low-cost recharges out of it will make the economic benefits of rechargeable batteries stand out as very advantageous. The principle of the total cost of ownership (ToC) should be examined based on the context of the specific application.
Tomi Engdahl says:
Celebrating the 20th Anniversary of the ISS with a Scale Model Synced to the Real Thing
https://www.hackster.io/news/celebrating-the-20th-anniversary-of-the-iss-with-a-scale-model-synced-to-the-real-thing-e5c5119e830f
Members of the ISS program created a scale model called ISS Mimic that is synced up to the real thing to celebrate its 20th anniversary.
Tomi Engdahl says:
China launches core module of new space station to orbit
By Mike Wall about 1 hour ago
https://www.space.com/china-launches-core-module-tianhe-space-station
Tianhe will be the central piece of the T-shaped Chinese Space Station
The core element of the Chinese Space Station launched to Earth orbit tonight (April 28), lifting off at 11:23 p.m. EDT (0323 GMT on April 29) atop a heavy-lift Long March 5B rocket from the Wenchang Spacecraft Launch Site on the island of Hainan.
The 59-foot-long (18 meters) module, known as Tianhe (“Harmony of the Heavens”), is the first space station component to launch. It will be joined in low Earth orbit later by two slightly smaller elements, forming a T-shaped space station that China aims to complete by the end of 2022.
Tomi Engdahl says:
A Piece Of Space Junk Has Damaged Part Of The International Space Station
https://www.iflscience.com/space/piece-space-junk-damaged-part-international-space-station/
A robotic arm attached to the International Space Station (ISS) has been hit by a tiny piece of space junk, resulting in damage to its thermal blanket and the boom beneath. The component, known as Canadarm2, remains operational, though the event serves as a shocking reminder of the fact that space junk is now a major problem and has the potential to cause catastrophic damage.
In a blog post, the Canadian Space Agency (CSA) – which designed Canadarm2 – announced that the damage was first noticed during a routine inspection on May 12. The piece of debris that hit the ISS was too small to be tracked, yet was traveling fast enough to pierce the metal outer layer of the arm.
https://www.asc-csa.gc.ca/eng/iss/news.asp#20210528
Tomi Engdahl says:
Watch As China’s Taikonauts Safely Dock With The Tiangong Space Station
https://www.iflscience.com/space/watch-as-chinas-taikonauts-safely-dock-with-the-tiangong-space-station/
Tomi Engdahl says:
As ISS Enters Its Final Years, Politics Take Center Stage
https://hackaday.com/2021/08/24/as-iss-enters-its-final-years-politics-take-center-stage/
There was a time when the idea of an international space station would have been seen as little more than fantasy. After all, the human spaceflight programs of the United States and the Soviet Union were started largely as a Cold War race to see which country would be the first to weaponize low Earth orbit and secure what military strategists believed would be the ultimate high ground.
America’s Space Shuttle making nine trips to the Russian Mir space station between 1995 and 1997. A new era of cooperation had begun between the world’s preeminent space-fairing countries, and with the engineering lessons learned during the Shuttle-Mir program, engineers from both space agencies began laying the groundwork for what would eventually become the International Space Station.
Unfortunately after more than twenty years of continuous US and Russian occupation of the ISS, it seems like the cracks are finally starting to form in this tentative scientific alliance. With accusations flying over who should take the blame for a series of serious mishaps aboard the orbiting laboratory, the outlook for future international collaboration in Earth orbit and beyond hasn’t been this poor since the height of the Cold War.
A Parting of Ways
NASA and most of its international partners have pledged to support the International Space Station until 2028 or 2030, but Russia has been hesitant to commit to extending their involvement past 2024. As recently as June 7th, Roscosmos Director General Dmitry Rogozin has been quoted as saying Russia will terminate their involvement with the ISS program in 2025 if US sanctions against the country aren’t lifted by the White House.
The growing rift between the countries doesn’t end in low Earth orbit, either. Despite hopes they would provide a module for NASA’s Lunar Gateway station, Russia is no longer listed among NASA’s international partners for the project. Instead, Roscosmos and the China National Space Administration (CNSA) have announced plans to construct what they’re calling the International Lunar Research Station (ILRS).
While Russia will almost certainly remain involved with the International Space Station program until ROSS is operational, it seems clear that the end of the country’s scientific alliance with the United States is on the horizon.
Tomi Engdahl says:
International Space Station could be followed by commercial space stations after 2030, NASA says
By Chelsea Gohd about 14 hours ago
Will China’s space station complicate things in low-Earth orbit?
https://www.space.com/iss-commercial-space-stations-after-2030-space-symposium
Tomi Engdahl says:
https://hackaday.com/2021/09/22/astro-pi-mk-ii-the-new-raspberry-pi-hardware-for-the-international-space-station/
Tomi Engdahl says:
EMI Mitigation on NASA Spacecraft
Oct. 19, 2021
NASA is ramping up efforts in space travel with the Mars Perseverance Rover, the Artemis program, and ultimately humans landing on Mars. This article will delve into a possible concern in space travel that’s not often mentioned: EMI in spacecraft.
https://www.electronicdesign.com/power-management/whitepaper/21178809/electronic-design-emi-mitigation-on-nasa-spacecraft?utm_source=EG%20ED%20Analog%20%26%20Power%20Source&utm_medium=email&utm_campaign=CPS211004100&o_eid=7211D2691390C9R&rdx.ident%5Bpull%5D=omeda%7C7211D2691390C9R&oly_enc_id=7211D2691390C9R
ISS Power Filter Design for Conducted Emissions
Power-line conducted emissions also need to be controlled on the ISS to protect power quality, limit electric-field radiation, and control noise currents on vehicle structures. Because the ISS doesn’t use the radio-frequency (RF) spectrum below 100 MHz, there are no radiated emissions limits imposed on payloads below that frequency.
A manufacturer-designed filter (Fig. 3), prior to the publication of MIL-STD-461D, had a test source impedance using 10-mF feed-through capacitors. This filter is known as the 461B filter.
The filter design shown in Figure 4 came after the publication of MIL-STD-461D, where the source impedance had two 50-mH line impedance stabilization networks (LISNs). This filter is known as the 461D filter, which had both Y (line-to-ground) capacitors (C5 and C6) and an X (line-to-line) capacitor (C4) as its first elements, providing a mismatch with the high source impedance.
Tomi Engdahl says:
https://hackaday.com/2021/12/29/astronaut-food-is-light-years-beyond-tang-and-freeze-dried-ice-cream/
Tomi Engdahl says:
Industry Opens a New Door to Space
The privately funded Bishop Airlock expands commercial access to the space station.
https://www.techbriefs.com/component/content/article/tb/spinoff/industrial-productivity-and-manufacturing-technology/40297?utm_source=TB_Main_News&utm_medium=email&utm_campaign=20220105&oly_enc_id=2460E0071134A8V
Tomi Engdahl says:
NASA Reveals Plan To Crash ISS Into The Pacific Ocean
https://www.iflscience.com/space/nasa-reveals-plan-to-crash-iss-into-the-pacific-ocean/
The International Space Station (ISS) is set to continue operating for the remainder of this decade after its mission was extended through 2030. In 2031, however, it will plummet down to Earth to a watery grave, NASA has revealed. Moving forwards, the agency says that all activities in low-Earth orbit (LEO) will be conducted by commercial operators, enabling NASA to concentrate on projects in deep space.
“The private sector is technically and financially capable of developing and operating commercial low-Earth orbit destinations, with NASA’s assistance,”
Tomi Engdahl says:
NASA Reportedly Plans to Destroy the Entire ISS Instead of Letting Museums Save Chunks
https://lm.facebook.com/l.php?u=https%3A%2F%2Ffuturism.com%2Fthe-byte%2Fnasa-destroy-space-station-museums%3Futm_campaign%3Dtrueanthem_manual%26utm_medium%3Dsocial%26utm_source%3Dfacebook&h=AT3sKOmDCBWiQVa2HiKjJ1qsbzuHou7Kkylwja4JOy41Bo2oMpVMwo7ZU-DF1f7RFUSDqwz8PngOEEhXiw5C2Imzirs4q60ezJU0EVCNgT6RHh3Yg41pXX5Xaw5Y5ajbtQ
It looks like historical preservation won’t be a priority for NASA after the International Space Station shuts down, according to a new piece published by collectSPACE this morning.
NASA’s January ISS Transition Report, collectSPACE pointed out, includes plans to bring down the ISS in 2030 in an uninhabited part of the Pacific Ocean known as “Point Nemo” but doesn’t seem to make any mention of what will happen to artifacts on the station of cultural and historical significance. The publication says it reached out to NASA multiple times to talk to someone in charge of ensuring objects of importance make their way to museums, but couldn’t make contact.
Tomi Engdahl says:
SpaceX, Northrop Grumman to resupply the ISS through 2026
https://techcrunch.com/2022/03/25/spacex-northrop-grumman-to-resupply-the-iss-through-2026/?tpcc=tcplusfacebook
Tomi Engdahl says:
https://hackaday.com/2022/03/21/one-giant-leap-backwards-for-humankind-what-the-russia-ukraine-war-means-for-the-iss/
Tomi Engdahl says:
A SpaceX tourism mission just arrived at the ISS. Here’s everything you need to know
https://edition.cnn.com/2022/04/09/tech/spacex-iss-launch-saturday-scn/index.html
New York (CNN Business)A SpaceX capsule carrying three paying customers and a former NASA astronaut has arrived at the International Space Station, finishing the first leg of this first-of-its-kind mission that will last about 10 days.
The mission launched from Kennedy Space Center in Florida on Friday morning. And the spacecraft, which separated from the rocket after reaching orbit, spent about 20 hours free flying through orbit as it maneuvered closer to the ISS.
The trip was brokered by the Houston, Texas-based startup Axiom Space, which seeks to book rocket rides, provide all the necessary training, and coordinate flights to the ISS for anyone who can afford it. It’s all in line with the US government’s and the private sector’s goal to boost commercial activity on the ISS and beyond.
Tomi Engdahl says:
A SpaceX tourism mission just arrived at the ISS. Here’s everything you need to know
https://www.cnn.com/2022/04/09/tech/spacex-iss-launch-saturday-scn/index.html
Tomi Engdahl says:
NASA ‘Holoported’ a Doctor Onto the International Space Station
https://www.cnet.com/science/space/nasa-holoported-a-doctor-onto-the-international-space-station/
Tomi Engdahl says:
NASA Beamed a Doctor to The ISS in a World-First ‘Holoportation’ Achievement
https://www.sciencealert.com/nasa-surgeon-beamed-to-international-space-station-in-holoportation-world-first
There’s never been a house call quite like this. In a first for telepresence communication, a NASA flight surgeon was ‘holoported’ to the International Space Station (ISS), appearing and conversing as a virtual presence in real time, hundreds of miles above the surface of Earth.
Tomi Engdahl says:
The International Space Station will deorbit in glory. How’s your legacy tech doing?
Your past projects may be a pain, but can they rain fiery death from above?
https://www.theregister.com/2022/08/30/iss_legacy_tech/
Tomi Engdahl says:
Damaged Soyuz May Leave Crew Without A Ride Home
https://hackaday.com/2022/12/19/damaged-soyuz-may-leave-crew-without-a-ride-home/
Though oddly beautiful in its own way, it’s a sight no astronaut wants to see: their spacecraft, the only way they have to return to Earth, ejecting countless iridescent droplets of something into space.
When the crew of Apollo 13 saw their craft literally bleeding out on their trip to the Moon it was clear the mission, and ultimately their lives, were in real jeopardy. Luckily the current situation is not nearly as dire, as the leaking Soyuz MS-22 spacecraft docked to the International Space Station doesn’t pose any immediate danger to those aboard the orbiting laboratory. But it’s still an unprecedented situation, and getting its crew home will require engineers on the ground to make some very difficult decisions.
This situation is still developing, and neither NASA nor their Russian counterpart Roscosmos have released much in the way of specifics. But we can make some educated guesses from the video and images we’ve seen of the stricken Soyuz capsule, and from what’s been shown to the public so far, things aren’t looking good.
Soyuz spacecraft docked to International Space Station springs ‘fairly significant’ coolant leak
https://edition.cnn.com/2022/12/15/world/soyuz-spacecraft-leak-iss-scn/index.html
A planned spacewalk by the Russian space agency Roscosmos has been called off following the discovery of a coolant leak coming from the Soyuz MS-22 spacecraft, which is currently docked to the International Space Station.
NASA’s Rob Navias, speaking on a late Wednesday evening NASA TV broadcast, called it a “fairly significant” leak. Live images during the broadcast showed liquid spewing out from the Soyuz. Navias said the leak was first observed around 7:45 p.m. ET Wednesday.
The Soyuz spacecraft is docked to the Russian segment of the space station. The external radiator cooling loop of the Soyuz is the suspected leak source, according to an update from NASA on Thursday afternoon.
Tomi Engdahl says:
https://hackaday.com/2023/03/15/the-international-space-station-is-always-up-there/
Tomi Engdahl says:
https://futurism.com/the-byte/nasa-spacecraft-destroy-iss
Tomi Engdahl says:
https://hackaday.com/2023/06/10/listening-to-the-iss-on-the-cheap/
Tomi Engdahl says:
https://hackaday.com/2023/09/04/this-model-mimics-the-international-space-station/
Tomi Engdahl says:
Tietovuoto avaruusasemalla: Reaaliaikainen nettisivu paljastaa todella tunkkaisen sisäilman ja jopa sen, kun astronautit käyvät vessassa – Nasa kiistää: ”Ei kerro siitä”
https://www.tekniikkatalous.fi/uutiset/tt/c521af04-604f-4e6b-aaab-47e96562bc68?fbclid=IwAR12jbiXXFp1dCjr8vN9LXSVLozOh-up5xlvOURl6Hiczp7eaYgIZDBcJIM
Tietovuodosta ei ole kuitenkaan onneksi vaaraa aseman toiminnalle.
Kansainvälisellä avaruusasemalla ISS:llä on havaittu tietovuoto – ainakin tavallaan. New Scientistin mukaan suuri määrä avaruusaseman ylläpitojärjestelmien mittaustietoa päätyy Github-palvelussa ylläpidettävään reaaliaikaiseen listaukseen, joka näkyy avoimesti kenelle tahansa internetin käyttäjälle.
Listan löysi anonyymi kyberturvallisuuden asiantuntija, joka esiintyy viestipalvelu X:ssä eli Twitterissä nimimerkillä ”Gi7w0rm”
https://iss-mimic.github.io/Mimic/
Uutisen mukaan parametrilistan näkyminen julkisella sivulla ei aseta ISS:n toimintaa vaaraan, vaikka ”Gi7w0rm” ehtikin ensin pelätä niin. Säikähdyksensä vuoksi asiantuntija otti yhteyttä heti listan löydettyään Yhdysvaltain liittovaltion kyberturvallisuusviranomaiseen Cisaan, mistä hän sai huojentavia uutisia.
New Scientistin haastatteleman Boeingin edustaja Tristan Moodyn mukaan listaus on alkujaan julkaistu verkossa tarkoituksellisesti, mutta se on jäänyt roikkumaan nettiin vahingossa. Lista oli aikanaan vuonna 2011 osa ISS Live -nimistä datatyökalua.
Listaus näyttää noin 350 parametria – muun muassa aseman moduulien asennot, akkujen ja aurinkopaneelien jännitteitä, jäähdytysnesteiden lämpötiloja, gyroskooppien vääntömomentteja, venttiilien ja tukielementtien asentoja sekä eri moduuleissa vallitsevia ilman kokonaispaineita ja ilman komponenttien osapaineita.
hiilidioksidin pitoisuutta 2 730 ppm.
Se on moninkertaisesti raittiiseen maanpäälliseen ulkoilmaan nähden (nykyisin 420 ppm). Jopa sisäilmaksi ISS:n ilma on enintään välttävää – pikemminkin huomattavan tunkkaista. Sisäilmayhdistyksen mukaan tyydyttävän sisäilman rajana voidaan pitää hiilidioksidin osalta 1 500 ppm pitoisuutta.
Tomi Engdahl says:
https://hackaday.com/2024/03/11/on-an-aging-space-station-air-leaks-become-routine/
Tomi Engdahl says:
https://space.stackexchange.com/questions/65534/how-much-does-air-on-the-iss-cost
The current cost of resupplying the ISS is around $80,000 per kg, although this price has varied over the years. (references)
The pressurized volume of air on the ISS is 1,005.0 m3
(ref). As the density of air is 1.293 kg/m3
, this equates to 1300 kg, or 104 million USD worth of air, after considering the launch costs. So, certainly far from free!
The oxygen (O₂) in the air is consumed by the astronauts on the station, converting O₂ into CO₂. Some of the CO₂ can be converted back into O₂ but this process isn’t 100% efficient. So replacement O₂ needs to be sent up on ISS resupply missions.
Each crew member requires about two pounds per day of oxygen, which is 14 pounds for a crew of seven, 6.35029 kg per day, 2318 kg per year, or roughly 29.2 million USD worth of O₂ per year, at current resupply costs, if no CO₂ was recycled.
However, the O₂ is sent up as water (H₂O), which makes it heavier by a factor of (18/16 = 1.125).
Some of the CO₂ is recycled. A 2017 report stated…