Tag: ISS

Russia to up ISS crew back to three

8:55 am

In order to integrate the new Nauka module, expected to launch in 2019, the Russians plan to increase their crew size on ISS back to three in late 2018.

[L]ong before the Nauka’s arrival, the Russian crew members aboard the ISS will have their hands full with various chores preceding the docking of the 20-ton spacecraft, which will increase the size and mass of the Russian Segment by almost a third. Moreover, once the module is in place, Russian cosmonauts are expected to labor into the 2020 to fully plug all the systems of the new room into their home in orbit. The total time required to integrate Nauka is expected to reach 2,000 work hours, including 11 spacewalks!

The preparations for the addition of the long-awaited module were scheduled to begin less than a year from now on Sept. 8, 2018, with the launch of the three members of Expedition 57 crew aboard the Soyuz MS-10 spacecraft. The launch will mark the first time since October 2016 that a Soyuz will lift more than one Russian cosmonaut.

Nauka is more than a decade behind schedule, which puts it in the same league as SLS and Orion. But then, Nauka, like SLS and Orion, is a government-built project, so no one should be surprised that it has taken so long. The goal isn’t the exploration of space. The goal is to create jobs, even if they don’t accomplish anything for decades.

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NanoRacks successfully deploys its largest commercial smallsat from ISS

9:24 pm

Capitalism in space: NanoRacks today successfully deployed its largest commercial smallsat yet from ISS.

NanoRacks Kaber Deployment Program allows for a larger EXPRESS class of satellites to be deployed from the International Space Station, up to 100 kilograms. NanoRacks deploys these Kaber-class satellites currently through the Japanese Experiment Module Airlock, and will shift deployments to the NanoRacks Airlock Module when the Company’s commercial Airlock becomes operational (planned for 2019).

The key here is that NanoRacks is making money providing launch services to smallsats in partnership with ISS and others. They act as the go-between between the smallsat companies and the NASA bureaucracy, thus earning money by simplifying NASA’s generally Byzantine approval and launch process for private satellite companies.

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During its landing in April a manned Soyuz capsule became partially depressurized

7:20 pm

During its landing in April a Soyuz capsule carrying three astronauts returning from ISS became partially depressurized at about five miles altitude.

The partial loss of pressure did not put the crew in jeopardy, Stafford said. A valve normally opens once the capsule descends to an altitude of five kilometers to allow outside air into the capsule. The crewmembers were also wearing pressure suits, as is standard procedure on Soyuz landings.

The incident occurred when a buckle from the parachute system hit a welding seam in the capsule as the parachute deployed.

There is a reason the Russians require astronauts to wear pressure suits while in a Soyuz capsule. During the return to Earth in 1971 of three cosmonauts from the first Russian space station, Salyut 1, the capsule depressurized and the three men died of suffocation.

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Private company to build its own ISS airlock

9:25 pm

Capitalism in space: The private company NanoRacks has raised the funds necessary to build its own ISS airlock and install it in 2019.

“The reason we want our own airlock is this airlock is going to be five times bigger than the current airlock, and it’s going to be far more commercial,” Manber said in a Sept. 27 presentation at the International Astronautical Congress in Adelaide, Australia. In addition to satellite deployments and experiments, he said the module will be commercial “real estate” on the station, with the ability to mount payloads on its exterior. “It’s getting us more into the real estate business and space station operations,” he said.

Manber said the module was on track to launch in 2019, carried to the station in the trunk of a SpaceX Dragon cargo resupply spacecraft. A formal manifesting of the payload on a resupply flight is now being finalized, he said, while the airlock itself is being manufactured.

What this suggests to me is that ISS might not go away in 2024, but instead slowly shift to private ownership and operation, all for profit. This deal appears to lay the groundwork for this shift.

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NASA to extend use of private module on ISS

9:31 am

Capitalism in space: NASA has decided to extend the life of Bigelow’s module BEAM on ISS beyond its original two year test.

NASA’s original contract with Bigelow was to keep BEAM on ISS for two years and then jettison it, but NASA has concluded that BEAM has value as a storage compartment and wants to keep it there. NASA said the new contract would overlap the originally contracted test period, for a minimum of three years, with two options to extend for one additional year. A decision on whether to jettison it at that point or continue using it will be made thereafter.

The agency said that not only would NASA use it for stowage, but Bigelow will be allowed to use it “as a test-bed for new technology demonstrations.”

Using it makes a lot more sense than jettisoning it (the typical government way). This will also allow them to study the longevity in space of an expandable module.

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Soyuz returns three astronauts to Earth from ISS

8:33 am

The successful return from ISS today of three astronauts by a Soyuz capsule marked the end of Peggy Whitson’s record-breaking nine-month mission.

When she launched to the International Space Station as part of the Expedition 50 and 51 crews on the Soyuz MS-03 mission, her tenure aboard the Station was due to end after approximately six months, landing with the same two crewmembers she launched with.

But a realignment of the Russian crew manifest and a desire on the part of Roscosmos to reduce Russian Station personnel from three to two until the launch of their new Mini-Research Module resulted in an ability, unplanned at her launch, to allow Dr. Whitson to remain aboard the ISS for nine months instead of six. Her planned six month stay, assuming it lasted the entire duration, would have seen Dr. Whitson break an important record for NASA – that of the most cumulative time in space for any NASA astronaut in history. Dr. Whitson broke that record on 24 April 2017, when she accumulated 534 days off Earth – breaking the record set by Jeff Williams in 2016. With the conclusion of her current mission, Dr. Whitson will have amassed a cumulative time of 665 days 22 hours 54 minutes in orbit, more than shattering Jeff Williams’s record and placing her 8th on the list of total time in space for a single person.

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SpaceX launch today

9:14 am

SpaceX is scheduled to resume launches at Kennedy, after a month of range upgrades by the Air Force. You can watch it live here, or here.

Launch is presently scheduled for 12:31 Eastern time to send a Dragon capsule to ISS. At the moment all looks good for an on-time launch.

The launch was a complete success, including a picture-perfect first stage landing at Kennedy.

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Time/PBS video documentary nominated for Emmy despite factual error in title

9:25 am

Fake news: The Time/PBS video documentary A Year in Space has been nominated for an Emmy award, despite a blatant factual error in the show’s title.

I haven’t seen the documentary, and so it might a great achievement. Nonetheless, this mission only lasted 340 days, not a year, and to call it “a year in space” is not only false, but an outright lie. For a news organization to start out this wrong, in the title, and then for it to get an Emmy nomination, tells us a great deal about the standards of accuracy in television news.

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Tupperware in space!

9:20 am

Capitalism in space: Tupperware and NASA have partnered to provide space-grown gardens an artificial material for roots to grow and be watered.

First flown to the ISS in 2014, the Vegetable Production System, (aka the “Veggie” facility), is an experiment for growing plants in zero gravity in a plastic greenhouse. It consists of a collapsible plastic tent with a controllable atmosphere lit by red, blue, and green LED lamps to promote growth. Since dirt and space travel don’t mix, the seeds are embedded in rooting “pillows” that take the place of soil to retain water and give the roots somewhere to grow.

The problem is that the pillows don’t hold onto water very well, so the hydroponic system keeps drying out unless it’s tended regularly. Given how much it costs to keep an astronaut on the station, time spent watering the lettuce is about as economical as hiring a brain surgeon to mow the lawn, so a team led by Howard Levine at the Kennedy Space Center is working on some upgrades for the system.

One key example is the semi-hydroponic Passive Orbital Nutrient Delivery System (PONDS) being produced by Tupperware. With over 75 years of experience working with food-grade plastics as well as injection molding and other plastic manufacturing processes, Tupperware is producing a new disposable pillow made of plastic mesh that uses capillary forces and unusual geometries to replace gravity and hold water in like a zero gravity sponge while permitting root formation.

In other words, rather than design and built the pillows itself, as it would have in the past, NASA has hired Tupperware to build them. I am willing to bet this is saving NASA both time and money.

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Growing cucumbers in space

9:48 am

New research growing cucumbers on ISS has found that the roots of these plants grew in the direction of water in weightlessness.

Plant roots grow to find water, according to a process known as hydrotropism. Roots are also influenced by gravity and tend to grow downwards, called gravitropism. To find out whether gravity or water had the greater influence on root growth, investigators grew cucumber plants in the microgravity environment on board the International Space Station. In their experiments, water (or hydrotropism) had more influence in controlling root growth.

“We will be able to utilize roots’ ability to sense moisture gradients for controlling root growth orientation and efficiently growing plants in future space farms,” said Dr. Hideyuki Takahashi, senior author of the New Phytologist study.

You can read the full science paper here.

This might sound obvious, but it isn’t. Past plant growth experiments on Mir and ISS had tended to show that plant roots did not know where to grow in weightlessness, suggesting that they needed gravity to guide the roots to water. Because of this, later experiments in space provided the roots complicated engineering to guide the roots to the water.

This experiment shows that maybe that complex engineering is not necessary, or at least could be simplified a bit. At a minimum it is crucial information engineers will need to design any future gardens for interplanetary spaceships with long term weightlessness.

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Sierra Nevada picks ULA’s Atlas 5 for first two Dream Chaser cargo flights

9:38 pm

Capitalism in space: Sierra Nevada has awarded ULA the contract for the first two cargo flights of Dream Chaser to ISS.

The announcement sets Dream Chaser’s first cargo flight to the International Space Station for launch from Cape Canaveral Air Force Station, Florida, in 2020. A second ISS cargo flight is contracted to lift off the next year. “ULA is an important player in the market and we appreciate their history and continued contributions to space flights and are pleased to support the aerospace community in Colorado and Alabama,” said Mark Sirangelo, corporate vice president of SNC’s Space Systems.

Financial terms of the contract were not disclosed.

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Russians successfully launch Progress to ISS

8:43 am

A Russian Soyuz rocket successfully launched a Progress freighter to ISS early today.

That’s the second Russian launch in less than a week, after a very long pause caused by the discovery of corruption in one of their major engine factories. Though the Russians presently only have two launches scheduled for July, and none scheduled for August, I suspect that this will change in their effort to clear their launch backlog.

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Worm grows 2 heads on ISS

5:29 pm

The uncertainty of science: For reasons that are not yet understood, a flatworm fragment flown to ISS in a microgravity experiment regenerated with two heads.

But the most dramatic difference was a type of regeneration observed in one of the 15 worm fragments sent to the ISS. That worm returned to the scientists with two heads (one on each end of its body), a type of regeneration so rare as to be practically unheard of — “normal flatworms in water never do this,” Levin told Live Science. When the researchers snipped both heads off back on Earth, the middle portion regenerated into a two-headed worm again.

“And these differences persist well over a year after return to Earth!” Levin said. “Those could have been caused by loss of the geomagnetic field, loss of gravity, and the stress of takeoff and landing — all components of any space-travel experience for living systems going to space in the future,” he said.

The flatworms that flew in space showed other significant differences from the control group that stayed on Earth, further suggesting that for flatworms at least the environment of weightlessness causes more problems that were expected.

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NASA considering using used first stages for Dragon cargo launches

11:15 am

Capitalism in space: With SpaceX’s successful launch on June 3 of a used Dragon cargo capsule to ISS, NASA is now considering using used Falcon 9 first stages for later cargo missions.

“That question has been posed,” Ven Feng, manager of the ISS Transportation Integration Office at NASA’s Johnson Space Center in Houston, said during a post-launch press conference Saturday. “We are looking at it,” he added. “We’re evaluating every aspect of it very carefully, and there is no schedule yet when we might go down that path.”

NASA officials made the same kind of cautious statements several years ago when SpaceX proposed flying a used Dragon capsule. In other words, they are going to do it, it just takes the bureaucracy time to mull the idea over and finally accept it.

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