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welcome to space to ground i'm nella for

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ramji nasa and spacex are now targeting

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thursday july 14th for the launch of the

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next commercial resupply services

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mission to the international space

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station

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the new target launch date for crs 25

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supports ongoing dragon spacecraft

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inspections as well as repair and

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replacement of any components that could

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have been degraded by exposure to the

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hydrazine vapor found during testing in

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early june the new date also allows for

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launch of the uncrewed cargo mission for

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the earliest possible rendezvous

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opportunity with the space station

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research has shown that living in

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microgravity can cause changes to

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astronauts immune systems similarly to

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how aging impacts them an experiment

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launching on spacex crs 25 seeks to

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better understand those changes and if

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they reverse upon return to earth

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immunosenescence will use tissue chips

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small devices that contain human cells

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in a 3d matrix to study these changes

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and how the immune system recovers after

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returning to earth what we learn could

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help us develop treatments to protect

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astronauts on future long-duration

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missions it could also lead to

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development of more effective treatments

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for immune system aging for patients

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back on our home planet

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another investigation launching aboard

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the cargo dragon will study how soil

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microbes behave in space

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soil microbes could be used to help make

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conditions on the surface of the moon

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and mars more favorable for plant growth

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and could also be used to help grow

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crops on space stations during long

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duration space flight the dynamos

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investigation will compare earth impacts

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on soil microbes with impacts from the

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space environment results could support

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design of life support systems using the

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natural processes carried out by soil

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microorganisms for future space

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exploration missions for all of the

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latest on the science taking place

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aboard the orbiting laboratory don't

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forget to follow us on twitter at space

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underscore station that's spacetogram

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for this week thanks so much for

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[Music]