SPX-6 Capture and Berthing. NASA orbital flight public domain image.

ISS043E122143 (04/17/2015) --- Expedition 43 Commander NASA astronaut Terry Virts (left) and ESA (European Space Agency) astronaut Samantha Cristoforetti work together in the International Space Station’s Cupola module to monitor the final approach of SpaceX’s sixth Dragon resupply craft. The vehicle arrived on April 17, 2015 and delivered more than two tons of research equipment and supplies to the station.