Новости МКС

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ISS Research‏Подлинная учетная запись @ISS_Research 7 ч. назад

A microgravity version of #farmtotable: the latest round of Chinese cabbage was harvested & enjoyed this weekend. http://go.nasa.gov/2nzZ1Y6 



Peggy Whitson, Intl. Space Station, ISS National Lab and 3 others">3 others

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ISS National Lab‏Подлинная учетная запись @ISS_CASIS 10 ч. назад

This week @Space_Station crew busy w/ @ISS_Research studying bone cells and this science has important applications→ https://go.nasa.gov/2qqn14n 

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https://blogs.nasa.gov/spacestation/2017/05/03/crew-researches-bone-loss-new-exercises-and-emergency-training/

Crew Researches Bone Loss, New Exercises and Emergency Training
Posted on May 3, 2017 at 11:01 am by Mark Garcia.

Спойлер

The Expedition 51 crew poses for a portrait with the captured Cygnus resupply ship just outside the cupola. In the foreground is Flight Engineer Fyodor Yurchikhin. In the background from left, are Commander Peggy Whitson and Flight Engineers Jack Fischer, Thomas Pesquet and Oleg Novitskiy.

[свернуть]

The Expedition 51 quintet studied how long-term space missions affect bone loss and explored new ways to exercise in space today. The crew also reviewed emergency procedures and equipment onboard the International Space Station.

Astronauts Peggy Whitson and Thomas Pesquet set up samples today for the OsteoOmics bone study that will last four weeks on the station. Doctors are researching the molecular mechanisms that impact the bones of astronauts living in space. The experiment could lead to therapeutic insights improving the health of astronauts in space and humans on Earth.

New Flight Engineer Jack Fischer performed an ultrasound scan of his leg muscles with assistance from Whitson and remote guidance from ground personnel. The ultrasound data is being collected for the Sprint study that is exploring the benefits of high-intensity, low-volume exercise to maintain muscle, bone and heart functions.

Whitson and Fischer then joined veteran cosmonaut Fyodor Yurchikhin for a couple of hours of emergency training. The trio took note of safety gear locations, followed escape paths to the docked Soyuz vehicles and inspected hatches for proper clearances.

This entry was posted in Expedition 51 and tagged European Space Agency, International Space Station, NASA, Roscosmos, Soyuz on May 3, 2017 by Mark Garcia.

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Pete‏ @Space_Pete 30 мин. назад

ISS Main Bus Switching Unit (MBSU)-2 (electrical distribution box) to be replaced tomorrow via robotics after losing comm with ISS last week

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http://tass.ru/kosmos/4232171

Российские космонавты на МКС получат выходной в День Победы
 
Космос | 4 мая, 14:47 UTC+3
 
Парад на Красной площади они смогут увидеть в записи на следующий день

МОСКВА, 4 мая. /ТАСС/. Российские члены экипажа Международной космической станции (МКС) отдохнут от работы в День Победы. Об этом рассказали в Центре управления полетами (ЦУП).

"Российские космонавты в День Победы получат выходной. Парад на Красной площади они смогут увидеть в записи на следующий день", - рассказали в ЦУПе.

В настоящее время на МКС работают российские космонавты Олег Новицкий и Федор Юрчихин, американские астронавты Пегги Уитсон и Джек Фишер, европейский астронавт Тома Песке.

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Thomas Pesquet‏Подлинная учетная запись @Thom_astro 3 мая

"Sewing" our Expedition patch onto our Sokol suits on Sunday (no sharp needles used!). https://flic.kr/p/TauL3f  #Exp51 #Proxima


РОСКОСМОС

Thomas Pesquet‏Подлинная учетная запись @Thom_astro 3 мая

Atelier couture de patchs avec Oleg: en préparation de notre retour sur Terre en Soyouz, on a ajouté les patchs sur les scaphandres Sokol

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Intl. Space Station‏Подлинная учетная запись @Space_Station 21 мин. назад

The Exp 51 crew was back at work Thursday researching how living in space weakens bones and alters DNA. https://go.nasa.gov/2qEi9pw 

РОСКОСМОС и Jack Fischer

https://blogs.nasa.gov/spacestation/2017/05/04/bone-loss-research-dna-tech-on-station-seeks-to-improve-health/

Bone Loss Research, DNA Tech on Station Seeks to Improve Health
Posted on May 4, 2017 at 1:04 pm by Mark Garcia.

Спойлер

Expedition 15 crew members Fyodor Yurchikhin and Jack Fischer take a break during mealtime in the Unity module.

[свернуть]

The five-member crew aboard the International Space Station was back at work Thursday researching how living in space affects the human body. Two of today's experiments looked at how microgravity weakens bones and alters DNA.

Commander Peggy Whitson joined Flight Engineer Thomas Pesquet for the OsteoOmics bone loss study. The experiment compares bone loss in the free-floating environment of microgravity versus magnetic levitation on Earth and observes the molecular changes that place. Results may improve the health of crews in space and humans on Earth, possibly counteracting bone loss and preventing bone diseases.

Pesquet later checked samples for the Genes In Space experiment that is based on a winning proposal submitted during a student science competition. That study is testing new technology to track how a space mission alters an astronaut's DNA and impacts their immune system.

The rest of the crew, including NASA astronaut Jack Fischer and cosmonauts Fyodor Yurchikhin and Oleg Novitskiy, split their time between loading a Russian cargo craft, crew orientation and systems maintenance.

This entry was posted in Expedition 51 and tagged European Space Agency, International Space Station, NASA, Roscosmos on May 4, 2017 by Mark Garcia.

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ISS Updates‏ @ISS101 7 ч. назад
 
[1/3] Time lapse video of last week's installation of the second NanoRacks External Platform mission - https://www.youtube.com/watch?v=WiXuVfi5R1k ...

(3:46)

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ISS Updates‏ @ISS101 7 ч. назад

[2/3] Dextre worked as the Station's Electrician last weekend, replacing an external circuit breaker box. Video: https://www.youtube.com/watch?v=GoQArQkMnVQ ...

https://www.youtube.com/watch?v=GoQArQkMnVQ]https://t.co/pJGEMtc3aQ]https://www.youtube.com/watch?v=GoQArQkMnVQ (7:49)

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ISS Updates‏ @ISS101 7 ч. назад

[3/3] A planned ammonia vent from the Station's thermal control system was performed May 3 to help isolate a leak:

(2:41)

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Jack Fischer‏Подлинная учетная запись @Astro2fish 4 ч. назад

If you squint a little & turn head sideways—a sunset & solar array look a lot like a light saber... just saying... #MayThe4thBeWithYou

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http://spaceflight101.com/nanoracks-experiment-platform-installed-outside-space-station/

NanoRacks Experiment Platform Installed outside Space Station
May 4, 2017

Спойлер

Photo: NASA/NanoRack


Above: Sped-up video of robotic work outside the Japanese Experiment Module on April 28, 2017 covering the installation of the NanoRacks External Platform (NREP), starting its second mission to expose experiments to the space environment.

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NREP is an external payload facility that can host compact research payloads in the space environment for educational institutions and commercial customers. NREP is a self-funded development by NanoRacks and is the first commercial platform that allows payloads to be subjected to the space environment for an extended period of time before being returned to Earth for laboratory analysis.

Спойлер

The NREP was fitted with a pair of new experiment payloads by NASA Astronauts Peggy Whitson and Jack Fischer before being placed in the Kibo module's equipment airlock for transfer to the outside of the Space Station. The extensible slide table moved the NREP within reach of the Japanese Robotic Arm that then took control of the platform and moved it into position for mechanical attachment to the JEM Exposed Facility, automatically connecting electrical and data lines. NanoRacks reported full success of the installation this week as both payloads began downlinking data.


Image: NanoRack

NREP #2 hosts a pair of experiments: Thermo Fisher Scientific/Florida Institute of Technology's Charge Injection Device (CID) and Honeywell Aerospace/Morehead State University's Dependable Multiprocessing-7 (DM7) – both funded through the Center for the Advancement of Science in Space (CASIS).

Charge Injection Devices are considered the future of image detectors for cameras utilized in various space and Earth-based applications as they enable pictures of scenes with varying brightness, allowing simultaneous imaging of extremely bright and very faint objects which is not possible with current detector technology. The NanoRacks CID study aims to examine whether CIDs can function in the space environment, paving the way for their use in future space-based telescopes for the study of Exoplanets.

CIDs are read-out on a pixel-by-pixel basis – meaning that individual pixels can be addressed without affecting surrounding pixels which enables them to capture faint objects next to high-intensity sources without glare from the brighter object affecting the image of the faint target. This could permit a future space telescope relying on CID technology to photograph an Earth-like planet around a bright host star which is impossible with the current state of technology.


CID Camera Payload – Photo: Florida Institute of Technology and Thermo Fisher Scientific

The latest advances of CID technology accomplished a significant reduction of image noise to the point CIDs can match current off-the-shelf CCD detectors. However, CIDs are not yet space qualified and stand at Technology Readiness Level 4. Through the NanoRacks CID experiment, the TRL should be advanced to Level 7, clearing the way for a future CID-based space observatory.

The CID experiment is expected to run for six months during which the imaging system captures an internal scene contained within the payload. Data collected over an extended period will show changes in contrast ratio abilities, noise, bias level and dark currents that could be caused by the challenging space environment.

The second experiment hosted by the NREP is known as Dependable Multiprocessing 7 (DM7) and examines the performance of a commercial-off-the-shelf processing module for future use on CubeSat missions that could enable a 10x to 100x increase in processing capability vs. state-of-the-art radiation hardened processors that come with a much higher price tag and are usually two or three generations behind COTS technology.


First NREP Install (2016) – Photo: NanoRack

NREP hosts interfaces that can attach it to the Exposed Facility of the Japanese Experiment Module's payload accommodations (Flight Releasable Attachment System) through which power and data connectivity is provided. The platform itself has its own power distribution system that can deliver power to installed experiments as required and an onboard computer routes commands send on customer request from the ground to the payload and science data from the payload to the ground through ISS communications assets.

Payloads can be attached and removed from NREP in a plug-and-play fashion, to be returned to the inside of ISS via the JEM robotic arm and the Kibo airlock for eventual return to the ground.
Completing all these operations without the need for a spacewalk to install/retrieve payloads allows access to space exposure research to a multitude of institutions from universities to private industry.

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Поздравление с Днем Победы!
 

ROSCOSMOS Media Store

Опубликовано: 5 мая 2017 г.

Космонавты РОСКОСМОСА поздравляют с Днем Победы!

(1:44)

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ISS Updates‏ @ISS101 6 ч. назад

ISS Robots begin Critical Power Switching Unit Replacement outside Space Station - http://spaceflight101.com/expedition-51/iss-robots-begin-critical-mbsu-replacement/ ...

Спойлер

[свернуть]

http://spaceflight101.com/expedition-51/iss-robots-begin-critical-mbsu-replacement/

ISS Robots begin Critical Power Switching Unit Replacement outside Space Station

May 5, 2017


The Space Station's Dextre Robot holds a spare power switching box to be installed on the Station's S0 truss – Photo: NASA TV

Robots are busy outside the International Space Station on Friday, tasked with replacing a partially failed power switching box on the truss segment of ISS to fully restore the orbiting laboratory's power system – sparing the crew members fr om venturing out on a contingency spacewalk.

Removing and replacing one of the four critical Main Bus Switching Units (MBSUs) is a first-time activity for the Stations' robotic duo – the 18-meter long Canadarm2 and two-armed Dextre robot. The most recent replacement of an MBSU was completed back in 2012 in a two-spacewalk effort by astronauts Suni Williams and Aki Hoshide.

Спойлер

The Main Bus Switching Units are a critical part of the Space Station's power system, acting as a central distribution hub between the solar power generators and the various internal and external power-consumers on ISS.

The Station's four MBSUs all reside on the central S0 Truss and each accepts primary power fr om two of the station's power channels which it then distributes downstream to direct-current converters that create the secondary power flow to the various users. MBSUs can be cross-tied to re-wire the Station's power system architecture in the event of an upstream failure.


An MBSU installed on the forward face of the S0 truss – Photo: NASA via CBS News

The recent MBSU issue manifested on April 25, 2017 when MBSU #2 suffered an unexpected Loss Of Communications. Mission Control was unable to command the MBSU and no status telemetry was received fr om the unit, however, MBSU #2 continued to pass power from the 2A and 2B power channels to the downstream DC-to-DC Converter Units (DDCUs). Although the fault had no immediate consequences such as system power-downs, a loss of commanding and telemetry is considered a serious anomaly that sets in motion a series of steps on the ground to assess recovery options.

One of the first steps taken by the ground team is evaluating the 'next worst failure' to establish impacts on ISS and its crew in case another component within the Electrical Power System failed. This was determined to be MBSU failing to transmit power altogether which would have required the crew to put in place contingency jumpers to keep all of the Station's critical systems powered via the three remaining MBSUs.


Suni Williams working near MBSU #1 on U.S. EVA 18 in 2012 – Photo: NASA

Looking into the failure signature, engineering teams noted the Loss of Communications issue closely resembled a similar problem observed on MBSU #1 in 2011/12 which required replacement of the MBSU via EVA. Meetings were held to evaluate forward options and it was decided to give the Station's robots the first shot at replacing the partially failed unit with a potential spacewalk kept as an option should the robots run into problems.

The timing of the replacement operation is advantageous as preparations for a scheduled spacewalk on May 12 are currently underway, meaning the addition of a second EVA, if needed for the MBSU, would not be as time-consuming as starting the EVA preparation process from scratch. Should Dextre run into a problem, a second EVA could be easily added to have the crew finish the replacement.


S0 Truss – MBSUs highlighted blue – Image: Boeing

The MBSUs, aside from MBSU #1 that was replaced in 2012, have been installed on the S0 truss segment ever since being delivered by Space Shuttle Atlantis in 2002 – all four were activated in 2006 as part of work completed during the STS-116 Shuttle mission. Built for a design life of 15 years, the MBSUs are right now reaching the end of what could be expected to be a trouble-free life and effects of aging would no-longer be a surprise going forward.

The MBSUs are rather sizeable Orbital Replacement Units, measuring 71 x 101.6 x 30.5 centimeters in size and weighing 99.8 Kilograms. Internally, the unit comprises Remote Bus Isolators as part of a pair of Bus Bar Assemblies, each with a Current Sensor Assembly and a central control network. A Switchgear Controller Assembly is responsible for commanding the MBSU, monitoring its health and transmitting status telemetry – SCA is the primary suspect in the failure of MBSU #2.


Internal & External MBSU Structure – Image: Boeing

The 2011 failure of MBSU #1 was believed to have been caused by radiation hits to the unit's memory unit within the controller assembly. After the initial signature of degradation, the MBSU continued to pass power and intermittent telemetry, providing occasional insight into its status.

This allowed teams to take their time planning an EVA effort, eventually put in motion in August 2012 when Williams and Hoshide stepped outside on what was expected to be a single EVA to replace the MBSU with an in-orbit spare. However, the two spacewalkers encountered significant issues with the two structural bolts holding the MBSU in place – spending several hours battling with the bolts. A second EVA had to be added to finish the replacement effort and the crew was sent outside with makeshift tools to clean up metal filings created by the jammed bolts, but efforts eventually paid off and the Station's power system was restored.

For MBSU #2, the Station's robots will get the first attempt at the replacement, however, should similar problems with the structural bolts occur, human hands will be required.


Dextre handles a pair of battery ORUs in January 2017 – Photo: NASA TV

Over the course of the Station's early life, any external failure was cause for a spacewalk, but over recent years, the Station's robots have taken on more and more maintenance tasks outside ISS, enabled by a series of tools given to the Dextre robot to remove, handle and install different-sized Orbital Replacement Units. Dextre was first used as an external repairman in 2011 when switching a broken circuit breaker – back then a two-day activity.

Some tasks have become routine – like last week's replacement of a circuit breaker box on the Station's truss – while other tasks mark first-time activities – such as the battery replacement accomplished earlier this year in a human-and-robotic effort. The MBSU replacement only became part of Dextre's repertoire in early 2016 after an exercise demonstrated the robot could remove a spare MBSU from its Flight Releasable Attachment System. This activity showcased a number of smaller challenges associated with maneuvering the unit and loads during the extraction of the unit – delivering valuable lessons that will undoubtedly come in handy during this week's operation.


Photo: NASA (Ground Teams assessing MBSU replacement options in 2012)

Thursday accomplished all major prerequisites inside and outside ISS to set up for the actual MBSU replacement procedure planned for Friday and into Saturday (UTC). Controllers on the ground tied five of the seven DC converters fed by MBSU-2 to another MBSU while the remaining two DDCUs (LA2B & S02B) had to be manually connected by the crew by installing a pair of jumpers inside the U.S. Lab module, known as the Lab Secondary Power Distribution Assembly (SPDA) Jumper to power the LA2B power bus and the Lab Truss Contingency Jumper (LTCJ) to power half of the Station's external cooling system.

Outside ISS, Dextre was moved over to External Stowage Platform (ESP) 2 wh ere two spare MBSUs resided – one delivered by STS-120 in 2007 and the other flown up on the HTV-4 spacecraft in 2013. The MBSU, along with its Flight Releasable Attachment System (FRAM) was transferred to Dextre's Enhanced ORU Temporary Platform (EOTP) side 2 – essentially a holding platform that allows Dextre to hold onto ORUs while keeping its two arms free for other operations. The last item on Thursday's task list was breaking torque on the two structural bolts of the spare MBSU to ensure an easy removal, though this activity slipped into Friday.


Photo: NASA TV

The actual replacement work began Friday afternoon when Mission Controllers began the final reconfiguration of the electrical system by powering down a number of systems in the U.S. Lab and Node 3.

For the replacement, Dextre will employ its ORU Tool Changeout Mechanism (OTCM) and Robotic Offset Tool (ROST) to remove the partially failed MBSU by releasing the H1 secondary bolt followed by the H2 primary bolt which will enable the robot to pull the MBSU away from its coldplate, in the process disconnecting blind-mate electrical/data interfaces.

After the removed unit is temp-stowed, the replacement MBSU will be retrieved from the EOTP and precisely aligned using guide-rails to enable blind-mate connectors to engage when the MBSU reaches its soft-docked position. Dextre will then drive the H1 and H2 bolts to secure the new MBSU in position – provided there are no stubborn bolts.

Mission Controllers will then allow power into the MBSU to check its status before placing loads back onto the 2A/2B power channels, allowing jumpers to be removed and all equipment to be re-powered. Operations are expected to be underway through the evening hours on Friday (UTC) and into the morning on Saturday depending on the progress of ROBO controllers at Mission Control Houston and the Canadian Space Agency's Saint Hubert facility.

Big Picture: MBSU's Role in the Space Station Power System

Photo: NASA

The Main Bus Switching Unit is a critical component of the Space Station's Power System that is required to distribute power from the Solar Arrays and Batteries to other electrical components before reaching the modules and users. The ISS electrical power system consists of power generation, energy storage, power management and distribution equipment – short: PMAD.

All USOS (United States Orbital Segment) power is generated by the Space Station's eight Solar Array Wings that build the photovoltaic electric power generation subsystem consisting of eight power channels, one for each array.

One PV Module (Photovoltaic Module) consists of two solar array wings – each wing being 35 meters long and 12 meters wide. There are 32,800 solar cells on each power channel, 400 of those are connected in series to form a string with 82 strings connected in parallel. Six channels use Nickel-Hydrogen batteries for power storage while two channels have been upgraded with Li-Ion battery units. The batteries are charged when the Solar Array Wings are exposed to sunlight and are discharged when the Station is making a night-pass or when additional power is required on-board.


ISS Power Architecture – Image: Boeing

When in sunlight, the Solar Arrays are continuously pointed at the Sun by computer controlled sun tracking capabilities that are realized by one Beta Gimbal Assembly located on each PV Module that rotates the wing, while a single Solar Alpha Rotary Joint is used to rotate four arrays on one side of the truss to follow the Station's orbital motion.

Before power generated by the Solar Arrays enters the rest of the electrical system, it has to pass Sequential Shunt Units (SSU) that regulate the power coming from the arrays at an established setpoint of 160 volts.

Responsible for managing the primary power coming from the Solar Arrays (actually from the SSUs) are Direct Current Switching Units – DCSUs – which control initial power distribution.


S0 Truss Configuration – MBSU #2 bottom-right – Image: NASA

During orbital day, the eight DCSUs send a portion of the primary power to the Station's MBSUs to go to the users while the other portion of the primary power is transferred to BCDUs – Battery Charge/Discharge Units that control the charging and discharging of each of the batteries – managing the available battery power.

During night passes when no new power is generated by the solar arrays, power is sent from the Battery Charge/Discharge Units back to the Direct Current Switching Units which then pass it along to the Main Bus Switching Units. Space Station primary power operates at a voltage range of 137 to 173 volts direct current.

There are four Main Bus Switching Units aboard the Space Station, all of them are mounted on the S0 Truss Segment and each one is fed power from two of the power channels. So, MBSU-1 receives power from channels 1A and 1B, while MBSU-2 receives primary power from channels 2A and 2B, and so on. Both, MBSUs and DCSUs use a network of high power switches to direct the power flow. These are called Remote Bus Isolators, RBIs. RBIs are used to isolate power path and distribute loads to other channels in case of failures. The RBI network is controllable from the ground and by on-board computers.


MBSU Interior – Image: Boeing

Each MBSU distributes power from its two associated channels further downstream wh ere conversion to secondary power occurs. DC to DC Conversion Units, DDCUs, convert ISS primary power to a stable 124.5V DC power supply for all other EPS components. One final component in the EPS string are Remote Power Control Modules (RPCM) which contain circuit breakers. From the RPCMs, power is routed to equipment of the Space Station.

MBSUs also route primary power to the Russian Service Module, wh ere equipment is located that is needed to integrate the Russian System which is working with 28V DC power into the USOS power supply. At the Service Module, primary power is converted to Russian Secondary Power via the American to Russian Conversion Units (ARCUs). Power provided by the ARCUs is then routed inside the Russian Segment to users requiring the 28V DC bus voltage. There are also Russian to American Converter Units (RACUs) for the reverse conversion process as a backup.

MBSUs are also an essential part of the flexible ISS Electrical Power System Architecture. The Main Bus Switching Units can be cross-tied in the event of equipment failures upstream, allowing all MBSUs to pass power and fully support loads should one power channel fail. This greatly enhances the failure tolerance of the EPS, but places priority on the MBSUs: in case of a failed MBSU, there is no option of keeping all power channels alive, requiring power downs and cross-ties at the DDCU level.

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[tnt22]

Эмблема 51-й экспедиции

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ISS Updates‏ @ISS101 29 мин. назад

ISS Robots successfully Replace critical Power Switching Unit outside Space Station - http://spaceflight101.com/expedition-51/iss-robots-begin-critical-mbsu-replacement/ ...

Статья по ссылке в твите обновлена

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ISS Robots Replace Critical Power Switching Box Outside Space Station
 

Spaceflight101

Опубликовано: 6 мая 2017 г.

Details/Background: http://spaceflight101.com/expedition-...

Time lapse video of the International Space Station's robots working May 4 through 6 to replace a partially failed Main Bus Switching Unit on the Station's S0 truss segment - a critical power distribution hub that conditions two of eight power channels available on ISS...

(12:02)

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Jack Fischer‏Подлинная учетная запись @Astro2fish 6 мая

My new fave food on station-Chocolate+Crm. Cheese=Delicious. You can slather it on anything & wrap any food in a blanket of yum.

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Intl. Space Station‏Подлинная учетная запись @Space_Station 8 ч. назад

.@Thom_Astro captured this spacewalk video on Friday, March 24, with @Astro_Kimbrough to work on Canadarm2 and check for ammonia leak.

Action Cam Footage fr om U.S. Spacewalk #40
 

NASA Johnson

Опубликовано: 8 мая 2017 г.

This footage was taken by ESA astronaut Thomas Pesquet during a spacewalk on the International Space Station on Friday, March 24. He was joined on the spacewalk by NASA astronaut Shane Kimbrough.

The primary task was to prepare the Pressurized Mating Adapter-3 (PMA-3) for installation of the second International Docking Adapter, which will accommodate commercial crew vehicle dockings. The PMA-3 provides the pressurized interface between the station modules and the docking adapter. The pair disconnected cables and electrical connections on PMA-3 to prepare for its robotic move, which took place on Sunday, March 26. PMA-3 was be moved from the port side of the Tranquility module to the space-facing side of the Harmony module, wh ere it will become home for the docking adapter, which will be delivered on a future flight of a SpaceX Dragon cargo spacecraft. The spacewalkers also installed on the starboard zero truss a new computer relay box equipped with advanced software for the adapter.

The two spacewalkers lubricated the latching end effector on the Special Purpose Dexterous Manipulator "extension" for the Canadarm2 robotic arm, inspected a radiator valve suspected of a small ammonia leak and replaced cameras on the Japanese segment of the outpost. Radiators are used to shed excess heat that builds up through normal space station operation.

(7:55)

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РОСКОСМОС‏Подлинная учетная запись @roscosmos 39 мин. назад

Космонавт Олег Новицкий, который сейчас работает на Международной космической станции, присоединяется к акции #БессмертныйПолк! #ДеньПобеды