ARRAY JETTISON AND DRAGON DEPARTURE

The solar array is jettisoned to burn up in the earth's atmosphere.
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The solar array is jettisoned to burn up in the earth’s atmosphere.

The ROSA, Roll Out Solar Array, is pictured shortly after it was jettisoned from the tip of the Canadarm2.

An experimental solar array demonstration was jettisoned while the Expedition 52 crew continued preparing the SpaceX Dragon for its release on Sunday. The three crew members also studied how microgravity impacts their bodies.

Following a week of successful science operations on the experiment for the Roll-Out Solar Array (ROSA), attempts to retract the array were unsuccessful. The ISS Mission Management Team met Monday morning and made the decision to jettison ROSA directly from its location at the end of the space station’s robotic arm, where it remained fully deployed in a normal configuration.

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The ISS solar array system powers the facility in earth orbit. At times, new ones must be installed to maintain power levels.

The original plan called for ROSA to be stored back inside the trunk of SpaceX’s Dragon which is detached and burned up in the atmosphere during Dragon reentry. The Operations team executed the jettison procedure that was developed as part of the pre-flight planning process that covered various scenarios. Once jettisoned, ROSA will not present any risk to the International Space Station and will not impact any upcoming visiting vehicle traffic.

ROSA is an experiment to test a new type of solar panel that rolls open in space and is more compact than current rigid panel designs. The ROSA investigation tests deployment and retraction, shape changes when the Earth blocks the sun, and other physical challenges to determine the array’s strength and durability.

The SpaceX Dragon cargo craft is one week away from departing the International Space Station. NASA astronaut Peggy Whitson continued packing Dragon this morning with used hardware and research samples for analysis back on Earth. Dragon will be released from the Canadarm2 Sunday at 11:38 a.m. EDT and splash down in the Pacific Ocean about 5-1/2 hours later.

Whitson then joined Flight Engineer Jack Fischer in the afternoon to wrap up the Seedling Growth-3 experiment. The botanical study is exploring how the lack of gravity impacts light sensing and growth in plants. Plant samples from the study will be returned to Earth on Sunday inside the Dragon resupply ship.

Commander Fyodor Yurchikhin, along with Whitson and Fischer, took body measurements today to help scientists understand how living in space affects body size. The crew also collected blood, urine, saliva and breath samples for more insight on astronaut health.

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CARDIAC CREW RESEARCH

Cardiac research is underway aboard the International Space Station.

Expedition 52 Crew Members Fyodor Yurchikhin and Jack Fischer

Cardiac research is underway on ISS. Expedition 52 crew members Fyodor Yurchikhin (middle foreground) and Jack Fischer were inside the Zvezda service module monitoring the docking of a Russian Progress 67 cargo ship on June 16, 2017.

The Expedition 52 trio worked throughout Friday on human cardiac research studying cardiac biology and the microbes that live on humans. Tiny satellites inside the International Space Station were also investigated for future remote or autonomous use in space.

NASA astronaut Jack Fisher collected microbe samples from his body and stowed them inside a science freezer for later analysis on Earth. He also activated an ultrasound and scanned his legs for the Vascular Echo study that is exploring how veins and arteries adapt during a spaceflight mission.

Three-time station crew member Peggy Whitson retrieved stem cell samples for observation to determine if living in space speeds up the aging process. Whitson then set up the SPHERES Halo experiment that is exploring the possibility of using satellites to clean up space debris and assemble objects such as space telescopes and habitats.

Commander Fyodor Yurchikhin worked in the station’s Russian segment maintaining life support systems. The veteran cosmonaut also explored pain sensation in space then wrapped up the work day with Earth photography documenting human and natural impacts across the globe.

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While cardiac research and satellite study is underway, work continues aboard the International Space Station.

Written By: Mark Garcia NASA


UNIVERSAL DIGEST is pleased to be a conduit for some of NASA’s projects and work. This article and some others were written by NASA and are mostly unedited. We do not claim credit; we simply want to make them more available to the general public.

Universal Digest is committed to providing its audience with the most timely news reporting; however, there are times where this is not possible. Therefore, a concise reporting of historical news occurrences are published, as soon as, is practicable.

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Crew Studies Bone Loss Reversal

Science research, among other tasks underway is for finding answers for the reversal of bone loss.

Astronaut Peggy Whitson

Astronaut Peggy Whitson checks out new science gear inside the Harmony module. The SpaceX Dragon is attached to the Earth-facing port of Harmony.

Expedition 52 is continuing to explore a new drug therapy today that may keep humans healthier in space. The trio onboard the International Space Station also worked on standard maintenance activities to keep the orbital complex in ship-shape.

The science of the reversal of bone loss during longer stays in space is covered below.

Astronauts living on the station exercise a couple of hours every day to offset the muscle and bone loss experienced in microgravity. A new injectable drug is also being explored as a way to maintain strong bones during spaceflight. Flight Engineers Peggy Whitson and Jack Fischer of NASA are testing that drug today on mice for the fifth version of the ongoing Rodent Research experiment. Rodent Research-5 is testing the drugs ability to stop the reversal of bone loss in space and may help patients with bone disease on Earth.

Fischer also worked on light plumbing duties and microbe sampling throughout Thursday. Whitson also worked on microbe sampling and set up life science gear ahead of a new experiment to be delivered on the next SpaceX Dragon cargo mission.

Commander Fyodor Yurchikhin checked out Russian life support gear and continued unloading new gear delivered last week inside the Progress 67 (67P) resupply ship. The veteran cosmonaut also repressurized the station’s atmosphere using oxygen stored inside the 67P.


Get weekly video highlights at: http://jscfeatures.jsc.nasa.gov/videoupdate/


UNIVERSAL DIGEST is pleased to be a conduit for some of NASA’s projects and work. This article and some others were written by NASA and are mostly unedited. We do not claim credit; we simply want to make them more available to the general public.

Universal Digest is committed to providing its audience with the most timely news reporting; however, there are times where this is not possible. Therefore, a concise reporting of historical news occurrences are published, as soon as, is practicable.

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Crew Researching Mice – Human Impacts

Mice and microbe research are underway aboard the space station.
Aurora and Night Sky
Mice and microbe research are underway aboard the International Space Station.

Microbe and mice research continue on ISS. The aurora and the night sky above Earth’s atmosphere are pictured from the space station. A portion of the station’s solar arrays and a pair of nitrogen/oxygen recharge system tanks are pictured in the foreground.

The three orbiting crew members living on the International Space Station today explored the effects of microgravity on mice and microbes to understand how living in space impacts humans. Cargo transfers are also underway on the orbital complex after the arrival of the latest resupply ship.

A pair of life science experiments observing mice are being worked today to research how the weightless environment of space impacts bones, muscles and the immunity system. For the Rodent Research-5 study today, NASA astronauts Peggy Whitson and Jack Fischer observed how drug therapies on mice may offset the negative health impacts of spaceflight. The duo also set up gear for a new study, the Multi-Omics Mouse experiment, which will be launched on the next Space Dragon mission and will evaluate the impacts of space environment and prebiotics on astronauts’ immune function.

The crew also collected saliva samples and stowed them in a science freezer for later microbe analysis on Earth. Station surfaces were also swabbed and air samples were taken to help scientists identify the microbes living on the station and how they may change on orbit.

Expedition 52 Commander Fyodor Yurchikhin continued unloading the 3,000 pounds of food, fuel and supplies delivered last week aboard the Progress 67 resupply ship. The veteran station cosmonaut also had some time set aside to update the station’s inventory system and check on Russian science experiments.


Get weekly video highlights at: http://jscfeatures.jsc.nasa.gov/videoupdate/


UNIVERSAL DIGEST is pleased to be a conduit for some of NASA’s projects and work. This article and some others were written by NASA and are mostly unedited. We do not claim credit; we simply want to make them more available to the general public.

Universal Digest is committed to providing its audience with the most timely news reporting; however, there are times where this is not possible. Therefore, a concise reporting of historical news occurrences are published, as soon as, is practicable.

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