Tag: ISS

Smoke and fire alarms in Russian ISS module Zvezda

8:54 am

In the middle of the night prior to a successful spacewalk by two Russian astronauts to begin the outfitting of the new Nauka module on ISS, fire alarms sounded in the Zvezda module, and both astronauts smelled smoke.

The incident, which the Russian space agency Roscosmos said happened at 1:55 a.m. GMT (9:55 p.m. EDT Wednesday) ahead of a scheduled spacewalk, is the latest in a string of problems to spur safety concerns over conditions on the Russian segment. “A smoke detector was triggered in the Zvezda service module of the Russian segment of the International Space Station during automatic battery charging, and an alarm went off,” Roscosmos said in a statement.

French astronaut Thomas Pesquet said “the smell of burning plastic or electronic equipment” wafted to the US segment of the station, Russian state news agency RIA Novosti reported, citing a NASA broadcast.

The Russian crew turned on a filter and, after the air was cleaned up, the astronauts went back to sleep, Roscosmos said.

It appears that because all the systems on the Russia portion of ISS continued to function normally, the Russians did no investigation. Or if they did, they have not revealed what they found. Nor has NASA provided any information.

In their history the Russians have experienced a number of fires on their various space stations. Some burned out without consequence (as it appears this recent one did). Others required aggressive action to bring them under control, as occurred on Mir several times. This history has apparently made the Russians somewhat nonchalant about such things.

That the issue was in Zvezda, however, which has a serious structural stress fracture problem in its hull, should be cause for a greater concern. Is this burn event related to the stress fractures? If I was an astronaut on board ISS I would surely want to know.

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Roscosmos declares film crew fit for launch to ISS

11:56 am

Capitalism in space: Roscosmos last week announced that the actress and director who plan to fly to ISS in October to film scenes for a science fiction movie are fit to fly.

Director Klim Shipenko and actor Yulia Peresild got the thumbs-up after a meeting of the Chief Medical Commission at the Yuri Gagarin Cosmonaut Training Center near Moscow, Russia’s federal space agency Roscosmos announced last week.

Cosmonaut Anton Shkaplerov, who is scheduled to launch toward the orbiting lab with Shipenko and Peresild aboard a Russian Soyuz spacecraft on Oct. 5, also got final medical clearance. So did the backups for the mission: cosmonaut Oleg Artemyev, director Alexey Dudin and actor Alena Mordovina.

The movie script itself, about an astronaut who gets a heart attack while on a spacewalk and then has to have surgery in space before returning to Earth, actually sounds quite good and — most refreshing — well grounded in reality. American space films tend to go in absurd directions, often because the filmmakers are ignorant and have no interest in learning anything about the subject they are writing about.

So far, the schedule of upcoming space tourist flights appears on track to happen, as announced:

  • September 15, 2021: SpaceX’s Dragon capsule flies four private citizens on a three day orbital flight
  • October 2021: The Russians will fly two passengers to ISS for 10 days to shoot a movie
  • December 2021: The Russians will fly billionaire Yusaku Maezawa and his assistant to ISS for 12 days
  • cDecember 2021: Space Adventures, using a Dragon capsule, will fly four in orbit for five days
  • January 2022: Axiom, using a Dragon capsule, will fly four tourists to ISS
  • 2022-2024: Three more Axiom tourist flights on Dragon to ISS
  • 2024: Axiom begins launching its own modules to ISS, starting construction of its own private space station
  • c2024: SpaceX’s Starship takes Yusaku Maezawa and several others on a journey around the Moon.
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New cracks discovered on a different Russian ISS module

12:38 am

Russian officials revealed today that their astronauts have discovered new cracks on a different Russian ISS module, dubbed Zarya.

“Superficial fissures have been found in some places on the Zarya module,” Vladimir Solovyov, chief engineer of rocket and space corporation Energia, told RIA news agency, according to Reuters. “This is bad and suggests that the fissures will begin to spread over time.” The Zarya module, also called the Functional Cargo Block, was the first component of the ISS ever launched, having blasted into orbit on Nov. 20, 1998, according to NASA.

Russians have now found what appear to be age stress fractures on both Zarya and Zvezda, the two oldest modules of ISS. More important, the Russians are finally admitting that the cracks are stress fractures, something they had earlier denied.

The need to launch new commercial American modules to ISS as quickly as possible has now become even more urgent. Axiom plans to do so, but its first module is not scheduled to arrive before ’24. It now looks increasingly that the Russian modules might not make it till then.

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SpaceX successfully launches cargo Dragon to ISS

12:35 am

Capitalism in space: SpaceX tonight successfully used its Falcon 9 rocket to launch cargo Dragon to ISS.

The first stage completed its fourth flight, landing successfully on the drone ship in the Atlantic. The cargo Dragon is making its second cargo mission for NASA. It will dock tomorrow.

This was SpaceX’s first launch since June 30th, a gap of almost two months as they initiated operations of a new drone ship in the Atlantic and shifted an older drone ship to the Pacific. In the next few weeks expect their fast launch pace for ’21 to resume, with at least one Starlink launch and the September 15th Inspiration4 commercial manned orbital flight.

The leaders in the 2021 launch race:

29 China
21 SpaceX
13 Russia
4 Northrop Grumman

The U.S. now leads China 32 to 29 in the national rankings.

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ISS spacewalk postponed due to “minor medical issue”

9:16 am

NASA announced yesterday that a spacewalk planned for today on ISS has been postponed because of ” a minor medical issue” involving American astronaut Mark Vande Hei.

This issue is not a medical emergency. The spacewalk is not time-sensitive and crew members are continuing to move forward with other station work and activities. Teams are assessing the next available opportunity to conduct the spacewalk following the SpaceX CRS-23 cargo resupply launch planned for Aug. 28 and upcoming Russian spacewalks.

The NASA announcement provided no other information, which is unfortunate. While Vande Hei’s medical privacy must be respected, his decision to not disclose the issue will only fuel some foolish speculation that is likely false. It is always better to be transparent.

Update: It appears the medical issue was a pinched nerve, which will likely cause the spacewalk to be delayed into September at the soonest.

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Russians accuse American astronaut of drilling hole in Soyuz

10:41 am

In several articles published today in the state-run Russian press, the Russians made the accusation that the hole and drilling damage that had been found on an in-orbit Soyuz capsule was put there by an American astronaut.

The first link above notes that while the Russians took a lie detector test, showing they didn’t drill the hole, the Americans refused. A second TASS link argues that their investigation proves that all the drill damage had to been done in orbit, for two reasons. First, they always test the capsule’s intergrity in a vacuum chamber before launch, and would have discovered it then. Second, the nature of the drill damage suggests it was done in zero gravity.

A third link provides an English translation of the more detailed Russian report, which made this direct accusation:

Firstly, the illness of the female astronaut, which is the first known incident of deep vein thrombosis in orbit, and the fact that Serena Maria Auñón-Chancellor had suffered the condition was published in a scientific article only after she had returned to Earth. This could have provoked ‘an acute psychological crisis’, which could have led to attempts by various means to speed up her return to the planet, according to my anonymous source. Secondly, for some reason unknown to Roscosmos, the video camera at the junction of the Russian and American segments was not working at that time. Thirdly, the Americans refused to perform a polygraph examination, while the Russian cosmonauts were polygraphed. Fourthly, Russia never had an opportunity to study the tools and the drill which are aboard the ISS to see if there are any signs of metal shavings from the hull of our ship’s orbital module.

This longer article also makes the claim that, because of the location of some of the drill attempts, whoever did drilling had no knowledge of the Soyuz’s construction.

All this may be true, but it conveniently ignores several very important facts: The one successful drillhole that caused the leak had been patched, which would have prevented any leak during the vacuum tests on the ground. The leak occurred because the patch was not designed to survive the hostile environment of space and eventually failed.

Also, the Russians’ own investigation had found that there was plenty of time on the ground for this sabotage to have occurred, so saying it had to have happened in space is incorrect.

Finally, the claim that the drill damage had to have been done in zero gravity is pure opinion, and hardly evidence.

In other words, it sounds as if the Russians are trying to shift blame from themselves (and an unknown ground worker) to an American astronaut. It is certainly possible that their claims are true, but they seem incredibly implausible. Much more likely would be sabotage on the ground by a very disgruntled Russian worker, routinely underpaid and resentful of the corruption that permeates Roscosmos and all of Russian society.

Such a conclusion however would be beyond embarrassing for the Putin government and the head of Roscosmos, Dmitry Rogozin. It is far better to place the blame on an American, especially because the end of the U.S.-Russian partnership on ISS is only a few years away.

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Antares rocket successfully launches Cygnus freighter to ISS

8:36 pm

Capitalism in space: Northrop Grumman’s Antares rocket today successfully launched a Cygnus cargo capsule to ISS.

This was the fourth launch this year for Northrop Grumman’s launch division, which was once the company Orbital ATK. It was also the most in a single year for that division since it launched five times in 2013.

26 China
20 SpaceX
12 Russia
4 Northrop Grumman

The U.S. now leads China 31 to 26 in the national rankings.

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Details on the Russian movie to be shot on ISS in October

9:13 pm

Link here. The article provides a lot of details about who will fly, who will do what, and who is slated as back-ups if the primary crew of actress and director fail their training. However, I found the description of the movie to be the most interesting thing:

Shipenko revealed the script is still being fine-tuned, but the plot involves a cosmonaut who suffers a cardiac arrest during a spacewalk and, although he survives, he will require surgery to ensure he can handle the Soyuz return to Earth. A female cardiac surgeon, named Zhenya, has to be sent to the ISS to perform the procedure with only a few weeks to prepare for the trip.

Unlike the American space films like Gravity, this story is incredibly well grounded in reality. The Russians have actually experienced examples of station astronauts getting so sick in space that their missions had to be aborted early. In one case it was a prostate infection. In another it was the mental illness of the entire crew.

This story is also comparable to situations that have occurred in Antarctica, a very similar environment to the station. In the early 2000s the doctor in Antarctica had to perform surgery on herself because she had developed cancer. Then in 2016 Buzz Aldrin had to be evacuated due health issues.

If done right, this could not only make a damn good movie, it will also do so by revealing the true dangers of going to space.

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Nauka shook up ISS more than first revealed

9:50 pm

According to new reporting, when the new Russian module Nauka unexpectedly began firing its engines, it rotated the International Space Station far more than first revealed, requiring a much more complicated effort to bring the station back to its correct orientation.

Zebulon Scoville, the flight director at NASA mission control in Houston, revealed that the 45 degrees that was initially reported as the amount ISS rotated was incorrect.

According to Scoville, the event has “been a little incorrectly reported.” He said that after Nauka incorrectly fired up, the station “spun one-and-a-half revolutions — about 540 degrees — before coming to a stop upside down. The space station then did a 180-degree forward flip to get back to its original orientation,” according to the report.

Scoville also shared that this was the first time that he has ever declared a “spacecraft emergency.”

It appears that though the station spun far more than first reported, the rate of rotation was still relatively slow, so it apparently did no harm to the station.

Scoville also revealed that, based on the data on hand during the event, it appeared Nauka was also trying to undock itself from the station. Mission controllers tried to counter this by firing engines on a Russian Progress freighter as well as on the Zvezda module.

Had Nauka’s engines had not stopped firing (for unknown reasons, though probably because they ran out of fuel), there was the real chance the accelerations could have shaken the station apart. Moreover, that other engines were brought into play suggests that the Russians not only did not know why Nauka’s engines fired, they had at the time no way to shut them down, and were thus forced to improvise other actions to try to save the increasingly dangerous situation.

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Russia offers conflicting causes for Nauka engine firing

9:34 am

Russian officials have now suggested two explanations for the accidently ignition of the engines on the new Nauka module to ISS, neither of which appears to have involved any real investigation.

Vladimir Solovyov, flight director of the space station’s Russian segment, blamed the incident on a “short-term software failure.” In a statement released Friday by the Russian space agency Roscosmos, Solovyov said because of the failure, a direct command to turn on the lab’s engines was mistakenly implemented.

He added the incident was “quickly countered by the propulsion system” of another Russian component at the station and “at the moment, the station is in its normal orientation” and all its systems “are operating normally.”

Roscosmos director Dmitry Rogozin later Friday suggested that “human factor” may have been at play. “There was such euphoria (after Nauka successfully docked with the space station), people relaxed to some extent,” Rogozin said in a radio interview. “Perhaps one of the operators didn’t take into account that the control system of the block will continue to adjust itself in space. And it determined a moment three hours after (the docking) and turned on the engines.” [emphasis mine]

So, was it human error? Or was it the software programming? Or both?

No matter what the specific cause, these conflicting stories, thrown out in almost an offhand manner, demonstrate that the real fundamental cause was the terrible, sloppy, and error-prone quality control systems at Roscosmos and all the aerospace companies it has taken over since the Putin administration consolidated Russia’s aerospace industry into a single government-run corporation.

These kinds of failures seem to happen with Russia now repeatedly. From launch aborts to launch failures to corruption in contracting to corruption in engine construction to plain simple sabotage, mistakes and errors and poor planning and dishonesty seem to hound their space effort at every level. Thank God Americans no longer have to fly on a Soyuz capsule, though one American on board ISS is still scheduled to come home on one.

Without competition and freedom, there is no pressure in Russia to improve, to improvise, to rethink, and to clean house when a management gets stale or corrupt. Instead, operations stultify and develop dry rot. They can’t see problems or even fix them efficiently. If anything, management circles the wagons to protect itself, while often deliberately ignoring the problems.

Rocket science is hard. It can quickly kill people when done poorly.

I think it will be a great relief to end this partnership. And the sooner the better.

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Nauka engines fire unexpectedly after docking; forces cancellation of Starliner launch

1:20 pm

The soap opera of the Nauka module to ISS became even more dramatic today when its engines fired unexpectedly after its docking, causing the station to shift in orbit and forcing Russian mission controllers to shut it down and fire other engines to return the station to its proper orbit.

Russia’s Roscosmos space agency attributed the issue to Nauka’s engines having to work with residual fuel in the craft, TASS news agency reported. “The process of transferring the Nauka module from flight mode to ‘docked with ISS’ mode is underway. Work is being carried out on the remaining fuel in the module,” Roscosmos was cited by TASS as saying.

It appears that because they needed to improvise the rendezvous using different engines, there is more fuel left over in Nauka than expected once it docked, and this needs to be vented safely. Somehow, instead of venting the module ignited the engines.

NASA has subsequently postponed tomorrow’s second unmanned demo launch of Boeing’s manned Starliner capsule until the agency has a clear understanding of the issue and has confirmed that Nauka’s presence is not a serious safety issue.

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Nauka finally docks with ISS

9:21 am

ISS configuration with Nauka added
The configuration of the Russian portion of ISS with
Nauka and the as-yet launched docking hub.

This morning the new fullsize module to ISS, Nauka, finally docked with the station, ending a week of tension because of issues with its engines.

The docking was not without issue, with Russian cosmonauts noting that Nauka wasn’t on the correct course less than an hour before docking; however, a retro burn quickly corrected the issue. After also troubleshooting an issue with the TORU manual docking system, Nauka successfully docked in automated fashion to the Zvezda service module’s nadir port at 09:29 EDT / 13:29 UTC, marking the first major expansion to the Russian segment for over 20 years.

They will now begin a series of eleven spacewalks to outfit the module. This includes installing a new European-built robot arm and transferring an airlock and radiator on a different module that were originally built to be attached to Nauka and have been waiting eleven years for its much delayed arrival.

In November Russia will then launch a small docking hub module that will dock with Nauka and provide the docking ports that were lost when the Piers module was detached earlier this week (thus allowing Nauka to dock). This new docking hub is also critical, because it will allow Russia to limit dockings to the aft port on Zvezda, which has serious structural stress issues and must be treated gently to prevent further hull cracks and air leaks.

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Russians detach Pirs module in anticipation of Nauka arrival to ISS

8:48 am

With the engine problems of Russia’s new ISS module Nauka apparently resolved sufficiently for its rendezvous and docking expected on on July 29th, Russian astronauts today undocked the 20-year-old Pirs module, which then used its engines so that it safely burned up over the Pacific Ocean.

The article provides a nice history of Pirs, which was originally intended for Russia’s Mir-2 station, never built after the fall of the Soviet Union.

Pirs, meaning “pier,” traces its origins back to the Mir-2 space station — which was itself a Soviet project that’s design began in 1976. Mir-2’s long and troubled history would eventually find it in the early 1990s where major design changes to launch its various modules via the Buran space shuttle were underway.

Following the collapse of the Soviet Union in December 1991, Mir-2 emerged the following year as a four-module station — including a Docking Module, which would become Pirs. In 1993, Mir-2 officially merged with the long-delayed NASA/European/Japanese/Canadian space station Freedom project to become the building blocks of the International Space Station.

The module, which provided the Russian half of ISS needed extra docking ports, was originally expected to be replaced after about five years with a larger module, but this was never built.

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Nauka issues apparently resolved?

10:46 am

According to a press release for Roscosmos, engineers have successfully fired the engines on Russia’s new large module for ISS, dubbed Nauka, and the module is now on course for rendezvous with the space station.

On Thursday, July 22, 2021 the Nauka Multipurpose Module Flight Control Group specialists at Moscow Mission Control Center conducted two correction maneuvers of the module that had launched to the International Space Station the previous day.

The first maneuver took place at 15:07 UTC with the module engines burn for 17.23 seconds giving an impulse of 1 m/sec. The second burn for 250.04 seconds took place at 17:19 UTC with an impulse of 14.59 m/sec.

No details were released explaining why the first course correction engine burn did not happen as scheduled.

UPDATE: I have added a question mark to the headline because there indications from a variety of sources, all unconfirmed, that the problems might still persist. We shall find out in the next two days.

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Russia’s new module for ISS, Nauka, in trouble after launch

12:02 pm

The new big Russian module for ISS, dubbed Nauka and successfully launched yesterday, appears to have a serious engine issue, according to these twitter reports by Anthony Zak of RussianSpaceWeb.com.

From his two tweets:

UPDATE: #Nauka’s main engines (pictured in operation) are currently out of commission. Specialists are troubleshooting the issue and developing a backup rendezvous plan. The module has ~30 stable orbits at current altitude.

…one more thing: at this point, there is no information that Nauka’s tank membranes have leaks in orbit. Those rumors in the Russian press might be a garbled echo of my reporting here ;)->

Nauka’s launch came about fourteen years behind scheduled, delayed by many engineering and quality control problems. Its construction began more than a quarter century ago. If Nauka fails to dock with ISS the Russians will face a disaster to their space program that almost cannot be measured. It will certainly make the Chinese much more reluctant to depend on Russia in their supposed partnership to build a base on the Moon or to work together on China’s space station. It should also make the U.S. far more reluctant to depend on Russia in its Artemis program.

Worse, it is questionable the Russians can get anything built in any reasonable time to replace Nauka. How can anyone expect them to build anything in a reasonable time for either of the U.S. or Chinese interplanetary projects?

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Russia launches Nauka, its first new ISS module in 11 years

9:17 am

Russia today used its Proton rocket to successfully place in orbit its new ISS module, Nauka, the first new Russian module in eleven years, and fourteen years after it was originally supposed to launch.

After launch and orbit insertion, the module, MLM-U Nauka, is now performing an eight day phase to the Station for an automated docking on July 29 to the nadir docking port of the Zvezda service module, a port currently occupied by the Pirs module.

Upon arrival, Nauka will become the third largest module of the Russian segment of the ISS and will add 70 cubic meters of space to the Station’s internal volume, a third Russian-side sleeping location, an additional toilet, as well as new water regeneration and oxygen production systems — augmenting some of the original systems in Zvezda that are showing their 22 year age.

The main task for the Nauka module will be to conduct scientific experiments. The pressurized compartment of the module contains 21 universal working places (URM), including four locations with sliding shelves, a glove box, a frame with an automatic rotating vibration-proof platform, and a porthole with a diameter of 426 mm for visual and instrumental observations.

The article above provides a very interesting review of Nauka’s complex and difficult history.

The leaders in the 2021 launch race:

23 China
20 SpaceX
12 Russia
3 Northrop Grumman

The U.S. still leads China 29 to 23 in the national rankings.

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Thales Alenia to build first two modules of Axiom’s commercial space station

9:24 am

Capitalism in space: The Italian company Thales Alenia today announced it has finalized the contract to build the first two modules of Axiom’s private commercial space station, set to be docked to ISS initially but eventually to fly independent once ISS is decommissioned.

Total price for the contract is 110 million euros. According to the press release, they are targeting 2024 and 2025 for launching these modules, which will be able to house as many as eight residents.

Based on its past successful experience in building modules for the International Space Station, Thales Alenia Space is responsible for the design, development, assembly and test of the primary structure and the Micrometeoroid & Debris Protection System for the two Axiom modules.

The welding activities of the primary structure of the first module will start in September 2021, with the assembly process concluding in 2022. The first module will arrive at Axiom facilities in Houston in July 2023, where Axiom will integrate and outfit the core systems and certify it for flight prior to shipping to the launch facility.

With the launch of this station, human spaceflight in the United States will become completely independent of the federal government. Private companies will own the rockets, spacecraft, and stations, and the government will no longer have a major say on what goes on in space. The NASA bureaucracy that makes getting an experiment onto ISS cumbersome, difficult, and discouraging will be out of a job. (An example: In the 2000s American scientists studying plant growth in weightlessness ended up launching their experiments with the Russians because getting NASA approval turned out to be too difficult.)

This doesn’t mean that it will be easy to get a payload or experiment onto Axiom’s station. The demand will be quite high. It just means that the decision will no longer reside with the government, but with the private companies and citizens of the United States.

As it always should have been.

Furthermore, that the demand is going to exceed the supply will mean that additional stations will be built, and quickly, because the lure of profit will be there. For example, many of the commercial medical experiments that were on the verge of paying off but were shut down after the Challenger accident in 1986 could very well be brought back to life.

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The bell of freedom rings in space

12:31 pm

The Liberty Bell
“Proclaim liberty throughout all the land unto all
the inhabitants thereof.” Photo credit: William Zhang

Not surprisingly the mainstream press today was agog with hundreds of stories about Richard Branson’s suborbital space flight yesterday on Virgin Galactic’s VSS Unity spaceplane.

The excitement and joy over this success is certainly warranted. Back in 2004 Branson set himself the task of creating a reusable suborbital space plane he dubbed SpaceShipTwo, modeled after the suborbital plane that had won the Ansari X-Prize and intended to sell tickets so that private citizens would have the ability to go into space.

His flight yesterday completed that journey. The company he founded and is slowly selling off so that he is only a minority owner now has a vehicle that for a fee can take anyone up to heights ranging from 50 to 60 miles, well within the U.S. definition of space.

Nonetheless, if you rely on the media frenzy about this particular flight to inform you about the state of commercial space you end up having a very distorted picture of this new blossoming industry. Branson’s achievement, as great as it is, has come far too late. Had he done it a decade ago, as he had promised, he would have achieved something historic, proving what was then considered impossible, that private enterprise, using no government resources, could make space travel easy and common.

Now, however, he merely joins the many other private enterprises that are about to fly into space, with most doing it more frequently and with far greater skill and at a much grander scale than Virgin Galactic. His flight is no longer historic. It is merely one of many that is about to reshape space exploration forever.

Consider the upcoming schedule of already paid for commercial manned flights:
» Read more

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Progress docks with ISS

12:36 pm

As expected a Russian Progress freighter docked with ISS yesterday, on schedule and with no mishaps.

I report this non-news story simply because of the Russian claim yesterday that a SpaceX Starlink satellite and Falcon 9 upper stage threatened a collision with that freighter as it maneuvered in orbit prior to docking.

Not surprisingly, there was no collision. The Russians knew this, or they would never have launched as they did. They made a stink about it as a ploy to stain SpaceX, a company that has taken almost all their commercial launch business by offering cheaper and more reliable rockets.

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Russians launch Progress freighter; Virgin Orbit launches seven commercial satellites

9:04 am

This morning two launches occurred. First the Russians successfully launched a Progress freighter to ISS, using their Soyuz-2 rocket.

Second, Virgin Orbit successfully completed its second orbital launch with its air-launched LauncherOne rocket, which was its first operational commercial launch, placing seven smallsats into orbit for three customers. This was also its second launch in 2021.

If all goes as planned, SpaceX will complete a third launch today also, placing more than 80 smallsats in orbit with its Falcon 9 rocket. Until then, however, the leaders in the 2021 launch race are as follows:

19 SpaceX
18 China
10 Russia
3 Northrop Grumman

The U.S. now leads China 28-18 in the national rankings.

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Astronauts complete installation of 1st set of new solar panels on ISS

8:47 am

Astronauts yesterday successfully completed the installation of the first set of new solar panels on ISS, completing the work they could not do on a first spacewalk because of issues with one of the astronaut’s spacesuits.

The new panels are deployed on top of the old panels. Though smaller, they are more efficient, so they actually produce more energy total.

The IROSAs [acronym for the new panels] will be installed on top of six of the station’s existing solar arrays, which will allow the IROSAs to utilize the same sun-tracking motors and be connected into the same electrical system as the current arrays.

With the IROSAs being around 30% efficient, compared to the 14% efficiency of the original arrays, the IROSAs will generate roughly the same amount of power as the originals despite being only half their size. Each IROSA will produce 20kW of additional power, for a total of 120kW across all six arrays.

However, because the IROSAs are smaller, they will not completely cover the half of the six [old panels] they’ll be installed over. Instead, portions of the original arrays will still be power positive. The unshadowed portions of the original arrays will continue to produce 95kW as a result, making for a combined total of 215kW of power available to the ISS — an increase of nearly a third compared with the outpost’s current levels.

The set installed yesterday was the first of six new panels to be installed, replacing all of the old panels.

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Russia announces it is shifting its manned operations on ISS to yearlong missions

10:35 am

According to Dmitry Rogozin, head of Roscosmos, Russia is changing the standard length of a crew stay at ISS from six months to a full year, beginning with the flight in which the crew will help film a commercial movie on ISS in October.

Then-Head of the Gagarin Cosmonaut Training Center Pavel Vlasov earlier said that two members of the Soyuz MS-18 spacecraft, Pyotr Dubrov and Mark Vande Hei, would stay in orbit longer than six months to help shoot a film Vyzov (Challenge). He also said that crew commander Oleg Novitsky would return to Earth in October aboard the Soyuz MS-18’s descend capsule together with the participants of the Soyuz MS-19 spacecraft’s flight (actress Yulia Peresild and film director Klim Shipenko who would be engaged in the film). Two crewmembers, cosmonaut Dubrov and NASA astronaut Vande Hei, would remain in orbit and return to Earth aboard the Soyuz MS-19 spaceship, he said.

Gaining experience at missions a year or longer, something only the Russians have accomplished, makes sense if one plans to send astronauts to Mars. I suspect however there is a second more practical reason for this change: It will free up seats on Soyuz to sell for commercial tourist flights. Russia clearly wants to compete successfully with the new American commercial manned flights that SpaceX and Axiom will be flying. This change gives them that opportunity.

Rogozin himself likely has personal financial motives. He is a co-producer on that movie, and likely will also pocket personally some of the profits from future tourist flights.

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Spacesuit issues prevent spacewalk from completing new ISS solar panels installation

10:12 am

Astronauts on ISS yesterday were unable to complete the installation of a new solar panel on ISS because the suit of one astronaut began experiencing technical problems.

First, a sensor in the suit’s sublimator — which provides pressure — registered a spike. Shortly thereafter, the Display and Control Module (DCM) in his suit malfunctioned, necessitating an immediate return to the Quest Airlock to connect back to Station umbilicals to attempt a restart of the unit.

The “warm restart” of the DCM meant that Shane [Kimbrough]’s suit momentarily lost its cooling and CO2 scrubbing capabilities; however, this is an acceptable condition, per EVA procedures, when attempting to “warm restart” a DCM. A failure to restart the unit would have meant a premature end to the EVA.

The restart was successful, and ground teams sent Shane back out to Thomas while managers and engineers continued to discuss the sublimator issue — which itself could have also stop the EVA early. Fortunately, through a series of suit configuration tests, ground teams were able to determine that the sublimator was functioning properly and that a faulty sensor likely triggered an erroneous pressure increase reading.

The time lost in fixing these issues however prevented the astronauts from finishing their work. The new solar panel was attached, but not unrolled into its full deployed configuration. The astronauts also were unable to plug the new panel into the station’s electrical system.

Engineers are now assessing the situation in order to plan a follow-up spacewalk.

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Russian astronaut fired for opposing filming of movie on ISS

9:22 am

Krikalev on the shuttle to ISS flight in 1998
Sergei Krikalev on the first ISS assembly flight
by the space shuttle Endeavour in 1998.

According to one new story today, Russian astronaut, Sergei Krikalev, 62, was fired from his position in senior management within Roscosmos for opposing its decision to film for profit the first feature film on ISS.

Krikalev did not say why he was against the film but his stance was backed by former colleagues who said that taking a passenger would delay a flight for a cosmonaut. Roscosmos denied that Krikalev had been fired.

Krikalev is one of Russia’s most celebrated astronauts. He was the first person to fly in space who was born after Sputnik, was the first Russian to fly on the space shuttle, and was the first Russian (along with an American) to enter ISS’s first module soon after launch. Overall he has spent more than 800 days in space.

He also became the last Soviet citizen, stranded on Mir when the Soviet Union fell in 1991. When he launched, he was a citizen of the U.S.S.R. When he finally returned, that country didn’t exist, and he was now a citizen of Russia.

I interviewed him extensively for my book, Leaving Earth, because he was fluent in English due to his flights on the shuttle. What I learned was that Krikalev was then and probably still is an ardent communist. On that Mir flight he refused to be filmed in a commercial for Coca-Cola, arranged by Roscosmos to make some money. There was no way he would allow himself to be recorded in such a crass for-profit manner. Thus, I am not surprised he now opposes using Russian space facilities for a commercial movie, for profit.

I also found him to be a very thoughtful and analytical man, which also probably explains his opposition to this quickly arranged commercial flight. The film company is partly owned by Dmitry Rogozin, head of Roscosmos, so there probably is some payoffs and corruption involved. It is also probably interfering with the Russian side of operations, as the story says Krikalev claims. These factors would cause Krikalev to speak his mind and argue against the flight, which likely angered Rogozin, who is apparently pocketing some cash from the film.

I suspect Krikalev is not fired, but has merely been sent to the doghouse for a short while. Roscosmos (and Rogozin) can’t afford the bad publicity of letting him go. It also needs his expertise in their operations.

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Russia announces new tourist flight options to ISS

9:00 am

Capitalism in space: Russia has announced a range of new tourist flight options to ISS in an effort to compete against the new commercial tourist flights being offered by American companies.

Glavkosmos is offering space tourists the option of performing spacewalks from the International Space Station (ISS) and stays of up to 30 days aboard the orbital laboratory. They can even purchase the Soyuz space capsule that took them to and from the station.

The company, which is part of Roscosmos, recently upgraded its website to provide details of what paying customers can do when they book a trip to the station. The information is available in Russian and English.

You can see the English website here. It does not indicate what the prices are for these services, though it will have to be competitive with what SpaceX is charging in order to compete.

Side note: This story is on Doug Messier’s site Parabolic Arc, which is presently running a fund-raising campaign. Please consider donating. While Doug and I might disagree on many things, his work covering commercial space remains among the best on line.

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SpaceX successfully launches cargo Dragon to ISS

10:52 am

Capitalism in space: SpaceX today successfully launched a cargo Dragon to ISS.

The first stage booster successfully landed on its drone ship in the Atlantic Ocean.

This Falcon 9 rocket and Dragon capsule were entirely new, making their first flights. This was the first new Falcon 9 to fly since November 2020, with sixteen launches during that period using reused boosters exclusively.

In fact, since November 2020 SpaceX has completed a total of 21 launches, all done in less than seven months. Moreover, the company has scheduled 34 (!) more launches through the rest of the year. If they achieve this ambitious schedule, they will complete 51 launches in ’21, more than doubling their previous annual record of 25 set last year. With all other American companies added in, there will be a good chance the United States launch total could exceed 70, breaking the country’s own annual launch record set in 1966 at the height of the first space race.

The leaders in the 2021 launch race:

17 SpaceX
15 China
8 Russia
2 Rocket Lab
2 ULA

The U.S. now leads China 23 to 15 in the national rankings.

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Axiom strikes tourist deal with SpaceX for three more flights

9:48 am

Capitalism in space: Axiom today announced that it had signed a deal with SpaceX to use its Dragon capsule and Falcon 9 rocket to launch three more manned tourist missions following the first now scheduled for January.

Ax-1, Axiom’s historic first private ISS mission, has already been approved by NASA and targeted for launch to the ISS no earlier than Jan. 2022, also aboard Dragon as a result of a deal the companies signed in March 2020. Axiom last week revealed legendary astronaut Peggy Whitson and champion GT racer John Shoffner would serve as commander and pilot on its proposed Ax-2 mission – now confirmed to be a Dragon flight.

So, too, are Ax-3 and Ax-4.

Other than Whitson and Shoffner, the company has not revealed who will fly on those three additional flights. That it made this deal however strongly suggests that it has ample demand for seats and will fill those capsules with no problem.

The press release also reiterates the company’s space station plans. They will begin attaching their own modules to ISS in ’24, with the goal of detaching from the station in ’28 and operating as an independent entirely private station thereafter.

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Tiny object hits robot arm on ISS

9:05 am

According to the Canadian Space Agency, a very small piece of space debris hit that country’s robot arm on ISS at some point in the recent past, producing a hole about 5mm wide, or about 1/5th of an inch in diameter.

During a routine inspection on May 12 robotic operators observed the hole in the boom section of the Canadarm2. After working with NASA to take detailed images of the impact, the agencies concluded the hole is about 5mm in diameter.

The damage is limited to a small section of the arm boom and thermal blanket. CSA says despite the impact, the arm’s performance is unaffected.

While space junk is a concern, this story is not about that, even if the authorities at CSA are hyping it, and as usual the mainstream press (as indicated by the article at the link) is buying into the propaganda. Space stations like ISS and Mir are routinely hit by micrometeorites. Though most impacts are much much smaller than the object that produced this hole and do no significant harm, hits like this one have happened in the past.

However, almost all such impacts are from natural objects from space. In fact, as far as I know, tiny holes this size are always caused by natural objects (with the one exception of the hole someone in Russia accidently drilled into the hull of one Soyuz spacecraft). Yet, the officials at Canada’s space agency immediately used the discovery to lobby for action against human-made space junk, even though they also admit they have no evidence this hole was produced by space junk, and past evidence strongly suggests it was not junk.

The real story here is whether the hulls on ISS’s various modules are sufficiently robust to withstand such somewhat expected and not-so-unusual natural impacts. And based on the station’s survival without any issue now for almost a quarter century, it appears that its shielding is sufficient, and will likely work for any long term mission to Mars or beyond. In fact, that the impact did no significant harm to the robot arm, which has been operating without stop, is further proof of that good design.

This is not to say that natural objects aren’t a threat. The data just shows that the threat from really dangerous objects large enough to do real harm is very very rare, to the point that, from a cost-benefit perspective, it makes little sense to protect against them. Future interplanetary space stations can rely on the hull shielding designs now used with some confidence.

As for space junk, that certainly is a problem that must be addressed. It just isn’t what this story is really about.

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Roscosmos finally approves ISS module Nauka for launch

9:10 am

After successfully completing its last ground tests, Roscosmos announced today that it has finally approved the launch on July 15th of its next module for ISS, dubbed Nauka.

Nauka’s long road to space began more than a quarter of a century ago, in 1995, with this year’s launch about fourteen years behind schedule. An engineer who started working on Nauka after graduation at the age of 25 would now be a grizzled veteran of 51 and looking forward to retirement in only a few years.

The module will provide the Russian half of ISS a second restroom, greater oxygen and water recycling capacity, and room for a third resident, all necessary additions for the planned two commercial tourist launches Russia has scheduled for the fall.

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Axiom announces astronaut to command its second commercial manned flight

1:30 pm

Capitalism in space: Axiom has announced that retired NASA astronaut Peggy Whitson will command its second commercial manned flight.

Whitson was the first woman to command the International Space Station and the oldest woman to fly in space (57, in 2017). She holds the U.S. record for most cumulative time in space (665 days) as well as the world record for most spacewalks by a woman (10).

Joining her will be 65-year-old John Shoffner, an airplane pilot and a champion car racer.

No word yet on when this flight will take place, but expect them to aim for next year, as soon as possible after Axiom’s first ISS commercial flight in January. Scheduling will also depend on NASA, which is presently working out an ISS scheduling policy to manage the increasing number of private missions being offered.

The flight will likely use a SpaceX Dragon capsule, which means there is room for two more passengers. It is possible that those seats will be filled with the winners of Discovery Channel’s proposed reality show, but they also might be filled by actor Tom Cruise and a movie director, both of whom have expressed interest in filming scenes of a movie on ISS.

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