iss053e095794 (Oct. 10, 2017) --- NASA astronaut and Expedition 53 Flight Engineer Mark Vande Hei is pictured during a spacewalk to service components on the Canadarm2 robotic arm during a spacewalk with NASA astronaut Randy Bresnik (out of frame).

iss053e130267 (Oct. 24, 2017) --- The Kestrel Eye IIM (KE2M) CubeSat is pictured shortly after it was deployed from the tip of the Dextre attached to the Mobile Servicing System. The KE2M is carrying an optical imaging system payload that is being used to validate the concept of using microsatellites in low-Earth orbit to support critical operations.

iss053e037294 (9/22/2017) --- A view of the Advanced Nano Step Cartridge Installation into the Solution Crystallization Observation Facility (SCOF) aboard the International Space Station (ISS). The Effects of Impurities on Perfection of Protein Crystals, Partition Functions, and Growth Mechanisms (Advanced Nano Step) experiment monitors and records how the incorporation of specific impurity molecules affect the development and quality of protein crystals, as they grow in a quartz cell aboard the ISS.

iss053e235231 (11/20/2017) --- A view of the Dellingr/RBLE Satellite deployment from the NanoRacks CubeSate Deployer Number 13 aboard the International Space Station (ISS). Dellingr/RBLE expands understanding of space weather risk by establishing baseline estimates of magnetic variation and particle fluxes in the exosphere. The instrument also observes cause and effect relationships between solar events and Earth’s atmosphere, which advances fundamental understanding of electromagnetic dynamics in the space environment.

iss053e130267 (Oct. 24, 2017) --- The Kestrel Eye IIM (KE2M) CubeSat is deployed from the tip of the Dextre attached to the Mobile Servicing System. The KE2M is carrying an optical imaging system payload that is being used to validate the concept of using microsatellites in low-Earth orbit to support critical operations.

iss053e235256 (11/20/2017) --- A view of the Dellingr/RBLE Satellite deployment from the NanoRacks CubeSate Deployer Number 13 aboard the International Space Station (ISS). Dellingr/RBLE expands understanding of space weather risk by establishing baseline estimates of magnetic variation and particle fluxes in the exosphere. The instrument also observes cause and effect relationships between solar events and Earth’s atmosphere, which advances fundamental understanding of electromagnetic dynamics in the space environment.

iss053e040103 (ept. 23, 2017) --- Astronaut Mark Vande Hei, Expedition 53 Flight Engineer, exercises on the COLBERT (Combined Operational Load Bearing External Resistance Treadmill) in the Tranquility module.

iss053e040100 (Sept. 23, 2017) --- NASA astronaut Mark Vande Hei jogs on a treadmill inside the space station.

iss053e216632 (Nov. 20, 2017) --- The EcAMSat, short for E. coli AntiMicrobial Satellite, is seen moments after being ejected from the NanoRacks CubeSat Deployer attached to the outside of Kibo laboratory module from the Japan Aerospace Exploration Agency. The E. coli AntiMicrobial Satellite (EcAMSat) mission will investigate space microgravity effects on the antibiotic resistance of E. coli, a bacterial pathogen responsible for urinary tract infection in humans and animals.

iss053e064252 (Sept. 29, 2017) --- NASA astronaut and Expedition 53 Flight Engineer Mark Vande Hei verifies his U.S. spacesuit fits while inside the International Space Station's U.S. Quest airlock.

iss053e130305 (Oct. 24, 2017) --- The Kestrel Eye IIM (KE2M) CubeSat is deployed from the tip of the Dextre attached to the Mobile Servicing System. The KE2M is carrying an optical imaging system payload that is being used to validate the concept of using microsatellites in low-Earth orbit to support critical operations.

iss053e235238(11/20/2017) --- A view of the Dellingr/RBLE Satellite deployment from the NanoRacks CubeSate Deployer Number 13 aboard the International Space Station (ISS). Dellingr/RBLE expands understanding of space weather risk by establishing baseline estimates of magnetic variation and particle fluxes in the exosphere. The instrument also observes cause and effect relationships between solar events and Earth’s atmosphere, which advances fundamental understanding of electromagnetic dynamics in the space environment.

iss053e039947 (9/22/2017) --- NASA astronaut Mark T. Vande Hei is shown with the Advanced Nano Step Cartridge in the Solution Crystallization Observation Facility (SCOF) during installation. The Effects of Impurities on Perfection of Protein Crystals, Partition Functions, and Growth Mechanisms (Advanced Nano Step) experiment monitors and records how the incorporation of specific impurity molecules affect the development and quality of protein crystals, as they grow in a quartz cell aboard the International Space Station (ISS).

iss053e235232 (11/20/2017) --- A view of the Dellingr/RBLE Satellite deployment from the NanoRacks CubeSate Deployer Number 13 aboard the International Space Station (ISS). Dellingr/RBLE expands understanding of space weather risk by establishing baseline estimates of magnetic variation and particle fluxes in the exosphere. The instrument also observes cause and effect relationships between solar events and Earth’s atmosphere, which advances fundamental understanding of electromagnetic dynamics in the space environment.