Welcome to Spaceflight Now's comprehensive coverage of the international space station, its full-time residents and the next shuttle assembly mission, flight STS-105/ISS-7A.1 of Discovery that will exchange the Expedition crews living aboard the outpost. NASA refers to STS-105 and the Expedition Two and Three rotation as "Stage 7A.1" in the space station assembly matrix. This page incorporates that approach. We will post data on upcoming shuttle assembly flights as each stage is completed. E-mail us your comments, suggestions and corrections!