Umberto Guidoni entering the Zarya module of the ISS

The first ESA astronaut to live on the International Space Station, Umberto Guidoni, in the Zvezda Service Module after hatch opening and the STS-100 crew were reunited in space with the three members of the Expedition Two crew. 

Umberto was a mission specialist on the STS-100 mission flown by Space Shuttle Endeavour to install the robotic arm Canadarm2.