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the international space station is a

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convergence of science technology and

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human innovation and orbiting science

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lab where astronauts live work and

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prepare for even bolder human

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exploration missions with the retirement

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of the shuttle program nasa challenged

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american industry to provide safe

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reliable and affordable transportation

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to the space station in order to

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maintain u.s leadership in space

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exploration and scientific discovery

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nasa's commercial partners spacex and

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orbital scientists met that challenge

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ending our temporary reliance on others

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to resupply the station

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these american companies are delivering

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critical supplies and science

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experiments to the international space

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station that expand our understanding of

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the universe and clear the path for

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deeper human exploration into the solar

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system

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one recently returned investigation

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aboard a spacex dragon spacecraft was

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the coarsening and solid liquid mixtures

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experiment an important trial that will

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help american engineers back on earth

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develop even more durable and stronger

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materials for automobile aircraft and

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spacecraft parts the ability to deliver

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and return frozen space station cargo

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including biological samples is

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essential for scientists hoping to

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better understand how the human body can

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thrive in long-term space flight

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these and other important results gained

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in space also have direct benefits here

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on earth

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one experiment on human immune cells

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scheduled to fly next year requires

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astronauts to access samples very

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quickly after the cargo arrives to the

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space station space flight capabilities

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developed through the cots program make

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this experiment possible

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with hundreds of ongoing experiments the

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international space station will be a

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platform of discovery for years to come

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the amazing breakthroughs in scientific

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research will be made possible and

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carried aloft to the orbiting laboratory

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by nasa's american partners spacex and

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orbital sciences

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but the success of nasa's commercial

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cargo program is just beginning

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soon private american companies will be

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transporting our astronauts to the

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station on spacecraft launched from u.s

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soil

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thanks to american ingenuity and nasa's