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[Music]

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welcome to space to ground i'm sandra

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jones two dragons are now docked to the

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international space station and a

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spacewalking duo stepped outside the

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hatch this week for station upgrades

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on july 14th spacex's 25th commercial

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resupply services mission launched from

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florida

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following a two-day journey the cargo

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dragon arrived to the space station and

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docked to the forward port of harmony

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the resupply ship was filled with more

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than 5

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800 pounds of supplies hardware and

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science experiments also docked to the

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space station is the crew dragon freedom

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which arrived at the space station in

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april and docked to the zenith port of

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harmony with crew 4 on board that crew

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includes nasa astronauts chad lingard

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bob hines jessica watkins and issa

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astronaut samantha christopher reddy

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if you've heard the phrase today's urine

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is tomorrow's coffee you probably

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understand how important safe and

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efficient water recycling is for long

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duration space missions

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this week chell lingard worked on the

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forward osmosis membrane experiment

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which tests how reactive membranes for

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water treatment perform in microgravity

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as compared to their performance back on

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earth water filtration focused on

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reclaiming water often uses processes

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that require external energy to push

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water through filtering membranes with

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forward osmosis that movement happens

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when a solution pulls the water across

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the membrane requiring far less power

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researchers hope to identify any

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unexpected challenges to using this form

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of water treatment in microgravity what

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they learn could impact water

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reclamation efforts for future space

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missions and could lead to more cost

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effective water purification systems on

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earth

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on thursday two spacewalkers suited up

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for a workday with a view

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expedition 67 commander oleg artemyev of

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rose cosmos and flight engineer samantha

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christopher reddy of issa clad in

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russian orleans space suits performed a

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spacewalk to install platforms and

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workstation adapter hardware near the

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37-foot long manipulator system mounted

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to nayuka

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and that's space to ground for this week

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thanks so much for watching we'll see