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CAPE CANAVERAL, Fla. – Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, April Spinale, a payload integration specialist with Bionetics, and Ray Polniak, a quality assurance specialist with Dynamac, prepare vials for the Protein Crystal Growth 2 experiment for an acceptance leak test. The vials have been filled with clear water and will be put into a vacuum chamber to verify that the hardware is providing adequate containment for the liquids. Both are consultants for the Center for Advancement of Science in Space, or CASIS. The experiment is one of many that will be delivered to the International Space Station on the SpaceX-4 commercial cargo resupply mission. Kennedy's ISS Ground Processing and Research Project Office is providing the necessary laboratories, equipment, supplies and consumables for 61 principal investigators, including 17 from other countries, as they prepare their science experiments for flight. The SpaceX-4 flight is targeted to launch in September 2014. Photo credit: NASA/Dimitri Gerondidakis KSC-2014-3797

CAPE CANAVERAL, Fla. – Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, April Spinale, a payload integration specialist with Bionetics, and Ray Polniak, a More

CAPE CANAVERAL, Fla. – Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, April Spinale, a payload integration specialist with Bionetics, and Ray Polniak, a quality assurance specialist with Dynamac, fill vials with clear water during an acceptance leak test on the hardware for the Protein Crystal Growth 2 experiment. They are both consultants for the Center for Advancement of Science in Space, or CASIS. The experiment is one of many that will be delivered to the International Space Station on the SpaceX-4 commercial cargo resupply mission. Kennedy's ISS Ground Processing and Research Project Office is providing the necessary laboratories, equipment, supplies and consumables for 61 principal investigators, including 17 from other countries, as they prepare their science experiments for flight. The SpaceX-4 flight is targeted to launch in September 2014. Photo credit: NASA/Dimitri Gerondidakis KSC-2014-3794

CAPE CANAVERAL, Fla. – Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, April Spinale, a payload integration specialist with Bionetics, and Ray Polniak, a More

CAPE CANAVERAL, Fla. – Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, Ray Polniak, a quality assurance specialist with Dynamac, prepares vials for the Crystal Protein Growth 2 experiment for an acceptance leak test. Polniak is a consultant for the Center for Advancement of Science is Space, or CASIS. The experiment is one of many that will be delivered to the International Space Station on the SpaceX-4 commercial cargo resupply mission. Kennedy's ISS Ground Processing and Research Project Office is providing the necessary laboratories, equipment, supplies and consumables for 61 principal investigators, including 17 from other countries, as they prepare their science experiments for flight. The SpaceX-4 flight is targeted to launch in September 2014. Photo credit: NASA/Dimitri Gerondidakis KSC-2014-3796

CAPE CANAVERAL, Fla. – Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, Ray Polniak, a quality assurance specialist with Dynamac, prepares vials for the Cr More

CAPE CANAVERAL, Fla. – Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, April Spinale, a payload integration specialist with Bionetics, fills vials with clear water during an acceptance leak test on the hardware for the Protein Crystal Growth 2 experiment. To her left is Ray Polniak, a quality assurance specialist with Dynamac. They are both consultants for the Center for Advancement of Science in Space, or CASIS. The experiment is one of many that will be delivered to the International Space Station on the SpaceX-4 commercial cargo resupply mission. Kennedy's ISS Ground Processing and Research Project Office is providing the necessary laboratories, equipment, supplies and consumables for 61 principal investigators, including 17 from other countries, as they prepare their science experiments for flight. The SpaceX-4 flight is targeted to launch in September 2014. Photo credit: NASA/Dimitri Gerondidakis KSC-2014-3792

CAPE CANAVERAL, Fla. – Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, April Spinale, a payload integration specialist with Bionetics, fills vials with cl More

CAPE CANAVERAL, Fla. – Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, April Spinale, a payload integration specialist with Bionetics, and Ray Polniak, a quality assurance specialist with Dynamac, place a set of vials for the Protein Crystal Growth 2 experiment into a vacuum chamber for an acceptance leak test. The vials have been filled with clear water. The test will verify that the hardware is providing adequate containment for the liquids. Both are consultants for the Center for Advancement of Science in Space, or CASIS. The experiment is one of many that will be delivered to the International Space Station on the SpaceX-4 commercial cargo resupply mission. Kennedy's ISS Ground Processing and Research Project Office is providing the necessary laboratories, equipment, supplies and consumables for 61 principal investigators, including 17 from other countries, as they prepare their science experiments for flight. The SpaceX-4 flight is targeted to launch in September 2014. Photo credit: NASA/Dimitri Gerondidakis KSC-2014-3798

CAPE CANAVERAL, Fla. – Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, April Spinale, a payload integration specialist with Bionetics, and Ray Polniak, a More