SpaceX’s Dragon cargo capsule arrived at the International Space Station early Sunday with 3.5 tons of supplies and experiments, including an inflatable room to test out technologies for future use on deep space missions. British astronaut Tim Peake captured Dragon with the robotic arm at 7:23 a.m. EDT (1123 GMT).

Two U.S.-built communications satellites rode the 100th European-made Ariane 5 rocket into orbit Tuesday from the jungle of French Guiana. Liftoff occurred at 2238 GMT (6:38 p.m. EDT) after a 45-minute delay caused by a range technical problem.

Boeing’s Starliner crew capsule could take off in October on its first unpiloted test flight to the International Space Station, a company official said recently, while SpaceX finishes up the investigation into the explosion of its Crew Dragon spacecraft during a ground test earlier this year.