Two NASA Astronauts complete 7-hour long spacewalk.
                     Two NASA Astronauts complete 
7-hour long spacewalk
INTRODUCTION
• In the third spacewalk of the year outside the International Space Station, 
NASA astronauts Kate Rubins and Victor Glover concluded their spacewalk 
after 7 hours and 4 minutes.
Source: www.businessinsider.in
MODIFICATION KITS
• As per the report the two NASA astronauts began work on Monday to 
install modification kits required for the upcoming solar array upgrades.
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SOLAR ARRAYS
• The duo worked near the farthest set of existing solar arrays on the 
station's left side, known as P6.
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GLOVER BUILT A BRACKET STRUCTURE
• Glover built a bracket structure and worked with Rubins to attach the 
bracket and support struts to the mast canister, the base, of one of the P6 
solar arrays, known as 2B.
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SAFE CONFIGURATION
• One of the bolts did not fully engage on the first attempt, so Rubins used a 
power drill to back it out and reseat it, then used a ratchet wrench to 
tighten the bolt, reaching a safe configuration.
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SPACEX'S 22ND COMMERCIAL MISSION
• The bolt likely will need to be secured further before installing one of the 
new solar arrays that will be delivered to the space station later this year 
aboard SpaceX's 22nd commercial resupply services mission.
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P6 SOLAR ARRAY PAIR
• Rubins and Glover then moved to begin identical assembly work for the 
bracket for the second of the P6 solar array pair, known as 4B.
Source: NASA
NEXT SPACEWALK
• They completed the construction of upper support hardware and secured 
it to the space station's exterior structure until work can be completed on 
the next spacewalk on March 5.
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4B ARRAY MODIFICATION
• During the spacewalk on March 5, Rubins and Japan Aerospace Exploration Agency 
(JAXA) astronaut Soichi Noguchi will venture outside the orbiting outpost to complete 
the installation of the 4B array modification kit and are expected to tackle additional 
work.
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SPACEWALK
• NASA astronauts Kate Rubins and Victor Glover concluded their spacewalk after 7 
hours and 4 minutes.
Source: www.businessinsider.in